Week 2 Quiz EKG Surg Set Up

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| By Iansfrenchy1

Iansfrenchy1

Community Contributor

Quizzes Created: 1 | Total Attempts: 206

Questions: 70 | Attempts: 206 | Updated: Mar 21, 2023

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Questions and Answers

1.

Where does transmission of electrical impulses in the heart begin?
- A.
  
  Atrioventricular node
- B.
  
  Bundle branches
- C.
  
  Sinoatrial node
- D.
  
  Purkinje fibers
Correct Answer
C. Sinoatrial node

Explanation
The correct answer is the Sinoatrial node. The Sinoatrial node, also known as the SA node, is a group of specialized cells located in the right atrium of the heart. It is often referred to as the "natural pacemaker" of the heart because it initiates the electrical impulses that regulate the heart's rhythm. These impulses then spread throughout the atria, causing them to contract and pump blood into the ventricles. From there, the impulses travel through the atrioventricular node, bundle branches, and Purkinje fibers to stimulate the contraction of the ventricles and complete the heart's electrical conduction system.

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2.

What is also refered to the pacemaker of the heart?
- A.
  
  Atrioventricular Node
- B.
  
  Bundle branches
- C.
  
  Purkinje fibers
- D.
  
  Sinoatrial Node
Correct Answer
D. Sinoatrial Node

Explanation
The sinoatrial node, also known as the pacemaker of the heart, is responsible for initiating the electrical impulses that regulate the heart's rhythm. It is located in the right atrium and generates electrical signals that cause the atria to contract and pump blood into the ventricles. These signals then travel to the atrioventricular node, bundle branches, and Purkinje fibers, coordinating the contraction of the ventricles and ensuring efficient blood circulation throughout the body.

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3.

The SA node sets the rhythm of the heart's contractions
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
The SA (sinoatrial) node is a small cluster of cells located in the right atrium of the heart. It is often referred to as the "natural pacemaker" of the heart because it generates electrical impulses that regulate the heart's rhythm. These electrical impulses cause the atria to contract, initiating the heartbeat. From the SA node, the electrical signals travel to the atrioventricular (AV) node and then to the ventricles, causing them to contract as well. Therefore, the SA node indeed sets the rhythm of the heart's contractions, making the statement true.

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4.

How many leads does the standard electrocardiograph machine have?
- A.
  
  1
- B.
  
  6
- C.
  
  10
- D.
  
  12
Correct Answer
D. 12

Explanation
The standard electrocardiograph machine has 12 leads. Leads are electrodes that are attached to different parts of the body to measure the electrical activity of the heart from different angles. These leads provide a comprehensive view of the heart's electrical activity and help in diagnosing various heart conditions.

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5.

What do the standard limb leads appear on the EKG as?
- A.
  
  I, II, III
- B.
  
  AVF, AVR, AVL
- C.
  
  V1-V6
Correct Answer
A. I, II, III

Explanation
The standard limb leads on an EKG appear as I, II, and III. These leads are used to measure the electrical activity of the heart from different angles. Lead I records the electrical activity between the right arm and left arm, lead II records between the right arm and left leg, and lead III records between the left arm and left leg. These leads provide important information about the electrical conduction and rhythm of the heart.

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6.

What do the augmented limb leads appear on the EKG as?
- A.
  
  I, II, III
- B.
  
  AVF, AVR, AVL
- C.
  
  V1-V6
Correct Answer
B. AVF, AVR, AVL

Explanation
The augmented limb leads (AVF, AVR, AVL) appear on the EKG as additional leads that provide different perspectives of the electrical activity of the heart. These leads are derived from the standard limb leads (I, II, III) and are placed on the patient's limbs. AVF represents the electrical activity between the left arm and the left leg, AVR represents the electrical activity between the right arm and the left leg, and AVL represents the electrical activity between the left arm and the left leg. These leads help in diagnosing specific cardiac conditions and provide a more comprehensive view of the heart's electrical activity.

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7.

What do the precordial leads appear on the EKG as?
- A.
  
  I, II, III
- B.
  
  AVF, AVR, AVL
- C.
  
  V1-V6
Correct Answer
C. V1-V6

Explanation
The precordial leads appear on the EKG as V1-V6. Precordial leads, also known as chest leads, are placed on the chest to record the electrical activity of the heart from different angles. V1 is placed in the fourth intercostal space just to the right of the sternum, V2 is placed in the fourth intercostal space just to the left of the sternum, V3 is placed halfway between V2 and V4, V4 is placed in the fifth intercostal space at the midclavicular line, V5 is placed in the fifth intercostal space at the anterior axillary line, and V6 is placed in the fifth intercostal space at the midaxillary line. These leads provide information about the electrical activity of the heart from the anterior, lateral, and inferior perspectives.

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8.

How many lead wires are placed on the patients body?
- A.
  
  4
- B.
  
  6
- C.
  
  10
- D.
  
  12
Correct Answer
C. 10

Explanation
The correct answer is 10 because lead wires are used to connect the patient's body to the monitoring equipment in order to measure electrical activity. In a standard electrocardiogram (ECG), there are 10 lead wires placed on the patient's body - 4 limb leads (RA, LA, RL, LL) and 6 precordial leads (V1-V6). These lead wires are strategically placed to capture the electrical signals from different angles and regions of the heart, providing a comprehensive view of its activity.

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9.

How many lead wires are placed on the patients limbs?
- A.
  
  4
- B.
  
  6
- C.
  
  10
- D.
  
  12
Correct Answer
A. 4

Explanation
The correct answer is 4 because lead wires are used to connect the patient's body to the electrocardiogram (ECG) machine. In a standard 12-lead ECG, there are 4 limb leads (also known as the standard limb leads or bipolar limb leads) that are placed on the patient's limbs – specifically, the right arm, left arm, right leg, and left leg. These leads help to record the electrical activity of the heart from different angles, providing valuable information about its functioning.

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10.

How many lead wires are placed on the patients chest?
- A.
  
  4
- B.
  
  6
- C.
  
  10
- D.
  
  12
Correct Answer
B. 6

Explanation
The correct answer is 6 because lead wires are used to connect the electrodes to the ECG machine. In a standard 12-lead ECG, there are 6 limb leads and 6 chest leads. The limb leads are placed on the patient's wrists and ankles, while the chest leads are placed on specific locations on the chest. Therefore, a total of 6 lead wires are placed on the patient's chest.

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11.

The skin conducts electricity well.
- A.
  
  True
- B.
  
  False
Correct Answer
B. False

Explanation
The statement is false because the skin does not conduct electricity well. The skin is a poor conductor of electricity due to its high resistance. This is why it is important to be cautious around electrical devices and avoid direct contact with live wires, as the skin acts as a barrier and prevents the flow of electrical current through the body.

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12.

What is needed to enhance transmission of electric current on the electrodes?
- A.
  
  Alcohol
- B.
  
  Iodine
- C.
  
  Electrolyte
- D.
  
  Soap
Correct Answer
C. Electrolyte

Explanation
An electrolyte is needed to enhance the transmission of electric current on the electrodes. Electrolytes are substances that can conduct electricity when dissolved in water or melted. They contain ions that are free to move and carry electric charge. When an electric current is passed through an electrolyte, the ions move towards the electrodes, allowing the current to flow. This enhances the transmission of electric current on the electrodes, making electrolyte the correct answer.

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13.

At what speed does the paper move through the EKG machine?
- A.
  
  12 mm per second
- B.
  
  25 mm per second
- C.
  
  50 mm per scond
- D.
  
  74 mm per second
Correct Answer
B. 25 mm per second

Explanation
The paper moves through the EKG machine at a speed of 25 mm per second. This speed is commonly used in EKG machines to record the electrical activity of the heart. It allows for a clear and accurate representation of the heart's rhythm and any abnormalities that may be present.

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14.

What is an irregular heartbeat?
- A.
  
  Arrhythmia
- B.
  
  Tachycardia
- C.
  
  Hypertension
- D.
  
  Hypotension
Correct Answer
A. Arrhythmia

Explanation
An irregular heartbeat, also known as arrhythmia, refers to abnormal heart rhythms. It occurs when the electrical signals that coordinate the heart's contractions are disrupted, causing the heart to beat too fast, too slow, or irregularly. This can lead to symptoms such as palpitations, dizziness, shortness of breath, and chest pain. Arrhythmias can range from harmless to life-threatening, and they can be caused by various factors including heart disease, electrolyte imbalances, medications, and stress. Treatment options for arrhythmia include medication, lifestyle changes, and medical procedures such as cardioversion or ablation.

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15.

A 24-hour EKG is measured using a stress test
- A.
  
  True
- B.
  
  False
Correct Answer
B. False

Explanation
A 24-hour EKG is measured using a Holter Monitor.

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16.

What should a patient do during the testing period of a 24-hour Holter Monitor EKG?
- A.
  
  Excercise on a treadmill until they reach their target heartrate
- B.
  
  Continue with normal activities, noting activities and stress
- C.
  
  Be on bed rest
Correct Answer
B. Continue with normal activities, noting activities and stress

Explanation
During the testing period of a 24-hour Holter Monitor EKG, a patient should continue with normal activities, noting activities and stress. This is because the purpose of the Holter Monitor EKG is to record the patient's heart activity during their daily routine. By continuing with normal activities, the monitor can accurately capture any irregularities or abnormalities in the heart's rhythm. Additionally, noting activities and stress can provide valuable information for the healthcare provider to analyze the data and make an accurate diagnosis.

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17.

What is pen-like instrument that records movement on the ECG paper
- A.
  
  Lead
- B.
  
  Deflection
- C.
  
  Stylus
- D.
  
  Electrode
Correct Answer
C. Stylus

Explanation
A stylus is a pen-like instrument that is used to record movement on the ECG paper. It is a small, pointed device that is attached to the ECG machine and is used to mark the paper as the electrical activity of the heart is detected. The stylus moves in response to the electrical signals and creates a graphical representation of the heart's activity on the ECG paper. It is an essential tool in ECG monitoring and helps healthcare professionals analyze and interpret the electrical activity of the heart.

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18.

On an ECG tracing what are caused by improper technique, poor conduction, outside interferance, or improper handeling of a tracing?
- A.
  
  Depolarization
- B.
  
  Repolarization
- C.
  
  Electrolytes
- D.
  
  Artifacts
Correct Answer
D. Artifacts

Explanation
Artifacts are caused by improper technique, poor conduction, outside interference, or improper handling of an ECG tracing. These factors can introduce unwanted signals or distortions into the tracing, making it difficult to accurately interpret the electrical activity of the heart. Artifacts can appear as irregularities, noise, or abnormal waveforms on the ECG, and they can mimic or mask true cardiac abnormalities. Therefore, it is important to identify and minimize artifacts to ensure the accuracy and reliability of the ECG interpretation.

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19.

What type of artifact is this?
- A.
  
  Somatic Interference
- B.
  
  Alternating Current (AC) Interference
- C.
  
  Wandering Baseline
- D.
  
  Flat line
Correct Answer
C. Wandering Baseline

Explanation
A wandering baseline refers to an irregular or unstable baseline on a graph or recording. It is characterized by small random fluctuations in the baseline, which can make it difficult to accurately interpret the data. In the context of artifacts, a wandering baseline can occur in various types of recordings, such as electrocardiograms (ECGs) or electroencephalograms (EEGs), and can be caused by factors such as electrode movement or poor electrode contact with the skin.

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20.

What type of artifact is this?
- A.
  
  Somatic Interference
- B.
  
  Alternating Current (AC) Interference
- C.
  
  Wandering Baseline
- D.
  
  Flat Line
Correct Answer
A. Somatic Interference

Explanation
Somatic Interference refers to unwanted signals or noise that can be caused by the body's own electrical activity. This artifact can occur during medical tests or recordings, such as an electrocardiogram (ECG) or electroencephalogram (EEG). It is important to identify and eliminate somatic interference to ensure accurate and reliable results.

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21.

What type of artifact is this?
- A.
  
  Somatic Interference
- B.
  
  Alternating Current (AC) Interference
- C.
  
  Wandering Baseline
- D.
  
  Flat line
Correct Answer
D. Flat line

Explanation
A flat line on a monitor typically indicates a lack of electrical activity in the body, specifically in the heart. This could suggest that the person is experiencing cardiac arrest or has a non-functioning heart. It is a critical condition that requires immediate medical attention.

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22.

What type of artifact is this?
- A.
  
  Somatic Interference
- B.
  
  Alternating Current (AC) Interferance
- C.
  
  Wandering Baseline
- D.
  
  Flatline
Correct Answer
B. Alternating Current (AC) Interferance

Explanation
This artifact is called Alternating Current (AC) Interference. AC interference refers to the presence of electrical noise in the form of alternating current that can disrupt or distort signals in medical equipment. It is often caused by nearby electrical devices or poor grounding. This interference can lead to inaccurate readings or distorted waveforms in medical recordings.

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23.

A flatline on the tracing of one of the leads is typically caused by what?
- A.
  
  Inadequately preparing the patints skin
- B.
  
  A loose or disconnected lead wire
- C.
  
  Muscle tremors of the patient
- D.
  
  A small amount of electric current given off by another piece of equipment
Correct Answer
B. A loose or disconnected lead wire

Explanation
A flatline on the tracing of one of the leads is typically caused by a loose or disconnected lead wire. When the lead wire is not properly connected or becomes loose during monitoring, it can result in a loss of electrical signal transmission, leading to a flatline on the tracing. This can prevent the accurate recording of the patient's heart activity and may require immediate attention to ensure proper monitoring and diagnosis.

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24.

Inadequtely preparing the patients skin causes what type of artifact?
- A.
  
  Somatic
- B.
  
  Alternating Current
- C.
  
  Wandering Baseline
- D.
  
  Flat Line
Correct Answer
C. Wandering Baseline

Explanation
Inadequately preparing the patient's skin can cause the electrodes to have poor contact with the skin, leading to movement artifacts known as a wandering baseline. This artifact appears as an irregular and fluctuating baseline on the recorded signal, making it difficult to interpret the true physiological activity.

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25.

A Patients Muscle Tremors can cause what type of artifact?
- A.
  
  Somatic
- B.
  
  Alternating Current
- C.
  
  Wandering Baseline
- D.
  
  Flat Line
Correct Answer
A. Somatic

Explanation
Muscle tremors in a patient can cause somatic artifacts. Somatic artifacts are unwanted electrical signals that originate from the patient's body movements or muscle activity. These artifacts can interfere with the accurate interpretation of physiological signals, such as electrocardiograms or electroencephalograms. In the case of muscle tremors, the involuntary muscle contractions can generate electrical noise that appears as irregular spikes or fluctuations in the recorded signal, leading to somatic artifacts.

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26.

What occurs when the EKG picks up a small amount of electric current given off by another piece of electronical equipment?
- A.
  
  Somatic Interference
- B.
  
  Alternating Current (AC) Interference
- C.
  
  Wandering Baseline
- D.
  
  Flat line
Correct Answer
B. Alternating Current (AC) Interference

Explanation
When the EKG picks up a small amount of electric current given off by another piece of electronic equipment, it is referred to as Alternating Current (AC) Interference. This interference can cause artifacts on the EKG tracing, leading to inaccurate interpretation of the patient's cardiac activity. It is important to minimize AC interference by ensuring proper grounding and shielding of the equipment to obtain a clear and reliable EKG reading.

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27.

Pulmonary Function Tests evaluate lung volume and capacity and are used to monitor conditions such as asthma, certain allergies, cystic fibrosis, and chronic obstructive pulmonary disease (COPD)
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
Pulmonary Function Tests are indeed used to evaluate lung volume and capacity and are commonly used to monitor various respiratory conditions such as asthma, allergies, cystic fibrosis, and chronic obstructive pulmonary disease (COPD). These tests help healthcare professionals assess the functioning of the lungs and diagnose any abnormalities or diseases affecting the respiratory system. Therefore, the given statement is true.

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28.

What does this EKG tracing represent?
- A.
  
  Atrial Fibrillation
- B.
  
  Premature Ventricular Contractions
- C.
  
  Ventricular Fibrillation
Correct Answer
C. Ventricular Fibrillation

Explanation
This EKG tracing represents ventricular fibrillation, which is a life-threatening arrhythmia characterized by chaotic and irregular electrical activity in the ventricles. In ventricular fibrillation, the ventricles quiver and are unable to effectively pump blood to the body, leading to a loss of consciousness and absence of a pulse. Immediate medical intervention, such as defibrillation, is required to restore a normal heart rhythm and prevent cardiac arrest.

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29.

What does this EKG tracing represent?
- A.
  
  Atrial Fibrillation
- B.
  
  Premature Ventricular Contractions
- C.
  
  Ventricular Fibrillation
Correct Answer
A. Atrial Fibrillation

Explanation
This EKG tracing represents atrial fibrillation. Atrial fibrillation is a cardiac arrhythmia characterized by irregular and rapid electrical impulses in the atria, leading to a chaotic and disorganized atrial activity. This results in an irregular ventricular response and can lead to symptoms such as palpitations, shortness of breath, and fatigue. The EKG tracing for atrial fibrillation typically shows absence of P waves, irregularly irregular R-R intervals, and fibrillatory waves.

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30.

What does this EKG tracing represent?
- A.
  
  Atrial Fibrillation
- B.
  
  Premature Ventricular Contractions
- C.
  
  Ventricular Fibrillation
Correct Answer
B. Premature Ventricular Contractions

Explanation
Premature Ventricular Contractions (PVCs) are the most likely explanation for the given EKG tracing. PVCs are abnormal heartbeats that originate in the ventricles, causing a premature contraction. This is represented on the EKG tracing as an early, wide QRS complex that is different from the normal sinus rhythm. Atrial Fibrillation and Ventricular Fibrillation would show different patterns on the EKG tracing, making them less likely explanations.

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31.

A-fib is a life threatening heart condition in which the ventricles of the heart appear to "quiver" and there is no cardiac output
- A.
  
  True
- B.
  
  False
Correct Answer
B. False

Explanation
V-FIB
is a life threatening heart condition in which the ventricles of the heart appear to "quiver" and there is no cardiac output

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1
0
32.

Any pulse oximetry reading less than what percent indicates hypoxemia?
- A.
  
  110
- B.
  
  105
- C.
  
  100
- D.
  
  95
Correct Answer
D. 95

Explanation
A pulse oximetry reading measures the oxygen saturation levels in the blood. Hypoxemia refers to a condition where there is a lower than normal level of oxygen in the blood. A pulse oximetry reading of less than 95% indicates hypoxemia. This means that the blood is not carrying enough oxygen to meet the body's needs, which can lead to various symptoms and complications.

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33.

What are the peaks and valleys labeled with the letters PQRSTU called?
- A.
  
  Stylus
- B.
  
  Electrodes
- C.
  
  Leads
- D.
  
  Deflections
Correct Answer
D. Deflections

Explanation
The peaks and valleys labeled with the letters PQRSTU are called deflections. Deflections refer to the upward and downward movements observed in an electrocardiogram (ECG) waveform. These deflections represent the electrical activity of the heart during each phase of the cardiac cycle. By analyzing the shape, duration, and amplitude of these deflections, healthcare professionals can diagnose various heart conditions and abnormalities.

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34.

Electrocardiogram is the process by which a graphic pattern is created from the electrical impulses generated within the heart as it pumps.
- A.
  
  True
- B.
  
  False
Correct Answer
B. False

Explanation
ELECTROCARDIOGRAPHY is the process by which a graphic pattern is created from the electrical impulses generated within the heart as it pumps.

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35.

What is an instrument that measures and displays the waves of electrical impulses responsible for the cardiac cycle?
- A.
  
  Electrocardiogram
- B.
  
  Electrocardiograph
- C.
  
  Electrocardiography
Correct Answer
B. ElectrocardiograpH

Explanation
An electrocardiograph is an instrument that measures and displays the waves of electrical impulses responsible for the cardiac cycle. It is used to diagnose and monitor heart conditions by recording the electrical activity of the heart through electrodes attached to the skin. The electrical impulses are then converted into a visual representation called an electrocardiogram (ECG), which can help identify abnormalities in the heart's rhythm and function.

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36.

What type of anesthetic affects only a particular area?
- A.
  
  General
- B.
  
  Local
Correct Answer
B. Local

Explanation
Local anesthesia is a type of anesthetic that affects only a specific area of the body, numbing the nerves and preventing pain signals from reaching the brain. It is commonly used for minor surgical procedures or dental work, where the patient remains awake and alert while only the targeted area is numbed. In contrast, general anesthesia affects the entire body, inducing a state of unconsciousness and blocking all sensation, allowing for more invasive procedures to be performed without pain or discomfort.

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37.

What type of anesthetic affects the entire body?
- A.
  
  General
- B.
  
  Local
Correct Answer
A. General

Explanation
General anesthesia is a type of anesthetic that affects the entire body. It induces a state of unconsciousness and complete loss of sensation, allowing for major surgeries or procedures to be performed without pain or discomfort. General anesthesia is administered through inhalation or intravenous injection, and it affects the brain and nervous system, causing temporary loss of consciousness and muscle relaxation. This type of anesthesia is commonly used in surgeries that require deep sedation or when the patient needs to be completely unaware and immobile during the procedure.

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38.

Minor surgical procedures typically involve the use of a general anesthetic in the form of an injection or a cream applied to the skin.
- A.
  
  True
- B.
  
  False
Correct Answer
B. False

Explanation
Minor surgical procedures typically involve the use of a LOCAL anesthetic in the form of an injection or a cream applied to the skin.

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39.

What is a loss of sensation, particularly the feeling of pain?
- A.
  
  Asepsis
- B.
  
  Anesthesia
- C.
  
  Anesthetic
- D.
  
  Debridement
Correct Answer
B. Anesthesia

Explanation
Anesthesia refers to the loss of sensation, including the feeling of pain. It is a state induced by medical professionals to block pain during surgeries or other medical procedures. This allows patients to undergo procedures without experiencing pain or discomfort. Anesthesia can be achieved through the administration of drugs or other techniques that numb the body or induce a temporary loss of consciousness.

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40.

What is a surgical wound made by cutting into body tissue performed by a doctor?
- A.
  
  Laceration
- B.
  
  Puncture wound
- C.
  
  Incision
Correct Answer
C. Incision

Explanation
An incision is a surgical wound made by cutting into body tissue performed by a doctor. It is a deliberate and controlled cut made during a surgical procedure. Incisions are carefully planned and executed by medical professionals to access and treat specific areas of the body. Unlike lacerations and puncture wounds, which may occur accidentally or as a result of trauma, an incision is a purposeful and intentional cut made for medical purposes.

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41.

What is a jagged, open wound in the skin that can extend down into the underlying tissue?
- A.
  
  Laceration
- B.
  
  Puncture wound
- C.
  
  Incision
Correct Answer
A. Laceration

Explanation
A laceration is a jagged, open wound in the skin that can extend down into the underlying tissue. Unlike an incision, which is a clean, straight cut, a laceration is typically caused by a tearing or ripping force, resulting in irregular edges. A puncture wound, on the other hand, is a narrow, deep wound caused by a sharp object penetrating the skin. Therefore, the correct answer for this question is laceration.

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42.

What is a deep wound caused by a sharp object?
- A.
  
  Laceration
- B.
  
  Puncture wound
- C.
  
  Inciaion
Correct Answer
B. Puncture wound

Explanation
A puncture wound is a deep wound caused by a sharp object. Unlike a laceration, which is a tear in the skin, a puncture wound occurs when a pointed object pierces the skin and creates a small hole. This type of wound can be caused by nails, needles, or other sharp objects. Puncture wounds can be deep and may not bleed much, making them prone to infection.

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43.

What type of preservative solution must all specimens be placed in to prevent changes in tissue?
- A.
  
  10% formalin
- B.
  
  10% bleach
- C.
  
  10% saline solution
- D.
  
  Distilled water
Correct Answer
A. 10% formalin

Explanation
Formalin is a commonly used preservative solution in laboratories and medical settings. It contains formaldehyde, which helps to prevent changes in tissue by inhibiting the growth of bacteria and other microorganisms. This solution helps to maintain the structure and integrity of the specimens, preventing decomposition and preserving them for further analysis or examination. Other options such as bleach, saline solution, and distilled water do not have the same preserving properties as formalin.

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44.

What is a small amount of tissue removed from the body for examination under a microscope called?
- A.
  
  Abscess
- B.
  
  Mole
- C.
  
  Biopsy
- D.
  
  Laceration
Correct Answer
C. Biopsy

Explanation
A small amount of tissue removed from the body for examination under a microscope is called a biopsy. This procedure is commonly performed to diagnose or monitor various medical conditions, such as cancer or infections. By analyzing the tissue sample, doctors can gain insights into the cellular structure, identify abnormalities, and determine the appropriate course of treatment. Biopsies can be performed using different techniques, such as needle biopsies or surgical biopsies, depending on the specific case and area of the body being examined.

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45.

What is the removal of debris or dead tissue from a wound, that may be necessary to expose healthy tissue called?
- A.
  
  Debridement
- B.
  
  Abscess
- C.
  
  Biopsy
- D.
  
  Proliferation
Correct Answer
A. Debridement

Explanation
Debridement is the correct answer because it refers to the removal of debris or dead tissue from a wound in order to expose healthy tissue. This process is necessary for proper wound healing and to prevent infection. Abscess refers to a localized collection of pus, biopsy is the removal of a small piece of tissue for examination, and proliferation refers to the rapid growth or increase of cells.

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46.

The first step in preventing a nonsurgical wound from becoming infected is careful cleansing.
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
The statement is true because careful cleansing is indeed the first step in preventing a nonsurgical wound from becoming infected. Cleansing the wound helps remove dirt, bacteria, and other contaminants that can lead to infection. By cleaning the wound thoroughly, the risk of infection is reduced, allowing for proper healing to occur.

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47.

What is a collection of pus that forms as a result of infection?
- A.
  
  Laceration
- B.
  
  Abscess
- C.
  
  Biopsy
- D.
  
  Proliferation
Correct Answer
B. Abscess

Explanation
An abscess is a collection of pus that forms as a result of an infection. It is typically surrounded by inflamed tissue and can occur in various parts of the body. Abscesses are usually caused by bacteria entering the body through a wound or infection, and the body's immune system responds by creating a pocket of pus to contain and fight the infection. Treatment for an abscess often involves draining the pus and administering antibiotics to clear the infection.

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48.

What is a small discolered area of the skin called?
- A.
  
  Nevus
- B.
  
  Abscess
- C.
  
  Proliferation
- D.
  
  Laceration
Correct Answer
A. Nevus

Explanation
A small discolored area of the skin is called a nevus. A nevus is a common skin growth that can appear as a mole or a birthmark. It is typically harmless but should be monitored for any changes in size, shape, or color. An abscess refers to a localized collection of pus, proliferation refers to the rapid growth of cells, and laceration refers to a deep cut or tear in the skin.

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49.

What is this a picture of?
- A.
  
  Incision
- B.
  
  Laceration
- C.
  
  Puncture wound
Correct Answer
B. Laceration

Explanation
This picture is likely showing a laceration. A laceration refers to a deep cut or tear in the skin or flesh. It typically has irregular edges and may require medical attention to clean, stitch, or bandage the wound. The picture may show a jagged or uneven wound, suggesting a laceration rather than an incision or puncture wound, which would have cleaner edges.

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50.

What is this a picture of?
- A.
  
  Incision
- B.
  
  Laceration
- C.
  
  Puncture wound
Correct Answer
A. Incision

Explanation
This picture shows a clean and straight cut on the skin, which is characteristic of an incision. Incisions are intentional cuts made with a sharp object, such as a scalpel, during surgical procedures or medical interventions. They are usually made with precision and are clean-edged, as opposed to lacerations or puncture wounds which may have irregular or jagged edges. Therefore, based on the appearance of the wound in the picture, it can be identified as an incision.

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Week 2 Quiz EKG Surg Set Up

Where does transmission of electrical impulses in the heart begin?

What is also refered to the pacemaker of the heart?

The SA node sets the rhythm of the heart's contractions

How many leads does the standard electrocardiograph machine have?

What do the standard limb leads appear on the EKG as?

What do the augmented limb leads appear on the EKG as?

What do the precordial leads appear on the EKG as?

How many lead wires are placed on the patients body?

How many lead wires are placed on the patients limbs?

How many lead wires are placed on the patients chest?

The skin conducts electricity well.

What is needed to enhance transmission of electric current on the electrodes?

At what speed does the paper move through the EKG machine?

What is an irregular heartbeat?

A 24-hour EKG is measured using a stress test

What should a patient do during the testing period of a 24-hour Holter Monitor EKG?

What is pen-like instrument that records movement on the ECG paper

On an ECG tracing what are caused by improper technique, poor conduction, outside interferance, or improper handeling of a tracing?

What type of artifact is this?

What type of artifact is this?

What type of artifact is this?

What type of artifact is this?

A flatline on the tracing of one of the leads is typically caused by what?

Inadequtely preparing the patients skin causes what type of artifact?

A Patients Muscle Tremors can cause what type of artifact?

What occurs when the EKG picks up a small amount of electric current given off by another piece of electronical equipment?

Pulmonary Function Tests evaluate lung volume and capacity and are used to monitor conditions such as asthma, certain allergies, cystic fibrosis, and chronic obstructive pulmonary disease (COPD)

What does this EKG tracing represent?

What does this EKG tracing represent?

What does this EKG tracing represent?

A-fib is a life threatening heart condition in which the ventricles of the heart appear to "quiver" and there is no cardiac output

Any pulse oximetry reading less than what percent indicates hypoxemia?

What are the peaks and valleys labeled with the letters PQRSTU called?

Electrocardiogram is the process by which a graphic pattern is created from the electrical impulses generated within the heart as it pumps.

What is an instrument that measures and displays the waves of electrical impulses responsible for the cardiac cycle?

What type of anesthetic affects only a particular area?

What type of anesthetic affects the entire body?

Minor surgical procedures typically involve the use of a general anesthetic in the form of an injection or a cream applied to the skin.

What is a loss of sensation, particularly the feeling of pain?

What is a surgical wound made by cutting into body tissue performed by a doctor?

What is a jagged, open wound in the skin that can extend down into the underlying tissue?

What is a deep wound caused by a sharp object?

What type of preservative solution must all specimens be placed in to prevent changes in tissue?

What is a small amount of tissue removed from the body for examination under a microscope called?

What is the removal of debris or dead tissue from a wound, that may be necessary to expose healthy tissue called?

The first step in preventing a nonsurgical wound from becoming infected is careful cleansing.

What is a collection of pus that forms as a result of infection?

What is a small discolered area of the skin called?

What is this a picture of?

What is this a picture of?