1.
Treating ALL lab specimens as if they are hazardous and infectious is the basis for
Correct Answer
C. Universal precautions
Explanation
Treating all lab specimens as if they are hazardous and infectious is the basis for universal precautions. Universal precautions refer to the set of guidelines and practices implemented in healthcare settings to prevent the transmission of infectious diseases. By assuming that all specimens are potentially hazardous, healthcare professionals take necessary precautions such as wearing gloves, masks, and other protective equipment, practicing proper hand hygiene, and following appropriate disposal procedures. This approach ensures the safety of both healthcare workers and patients, minimizing the risk of infection transmission.
2.
The smallest veins of the human anatomy are known as_____
Correct Answer
C. Venules
Explanation
Venules are the smallest veins in the human anatomy. Veins carry deoxygenated blood back to the heart from various parts of the body. Venules are responsible for collecting blood from capillaries and transporting it to larger veins called veins. Arteries, on the other hand, carry oxygenated blood away from the heart to different parts of the body, while arterioles are small branches of arteries. Therefore, venules are the correct answer as they specifically refer to the smallest veins in the human body.
3.
Squeezing the finger too vigorously during the capillary bloood collection can cause erroneous lab results due to
Correct Answer
D. Dilution with tissue fluid
Explanation
Squeezing the finger too vigorously during capillary blood collection can cause erroneous lab results due to dilution with tissue fluid. When the finger is squeezed too hard, excess tissue fluid is forced into the collection site, leading to an increased volume of fluid in the sample. This can result in a dilution of the blood, affecting the accuracy of the lab results. It is important to avoid excessive squeezing to ensure accurate and reliable test results.
4.
Why does a multi sample needle have a rubber sleeve over the end of the needle that is inserted into the collection tube?
Correct Answer
C. To prevent blood from seeping into the adapter
Explanation
The rubber sleeve on the end of the needle is inserted into the collection tube to prevent blood from seeping into the adapter. This is important because if blood were to seep into the adapter, it could contaminate the sample and affect the accuracy of test results. The rubber sleeve acts as a barrier, keeping the blood contained within the collection tube and preventing any leakage or seepage. This helps maintain the integrity of the sample and ensures accurate testing.
5.
To draw blood from apatient with an open IV line the selected site should be located _____
Correct Answer
C. Above the IV
Explanation
When drawing blood from a patient with an open IV line, it is important to select a site that is located above the IV. This is because drawing blood from a site below the IV can cause contamination of the blood sample with IV fluids, leading to inaccurate test results. Therefore, selecting a site above the IV ensures that the blood sample is not affected by the IV fluids and provides a more accurate representation of the patient's blood composition.
6.
Confirming an outpatients name and _____ provides two important identifiers for blood collection.
Correct Answer
C. Date of birth
Explanation
Confirming an outpatient's name and date of birth provides two important identifiers for blood collection. The name ensures that the correct individual is receiving the blood collection, while the date of birth acts as an additional verification to avoid any confusion or mistakes. This information is crucial for accurately identifying the patient and ensuring that the blood collection is done safely and correctly.
7.
An evacuated tube system for venipuncture consists of ALL BUT WHICH ONE of these components?
Correct Answer
C. Compartmentalized, hard shell collection tray
Explanation
The evacuated tube system for venipuncture consists of a vacuum collection tube with a color-coded stopper, a special plastic holder known as an adapter, and a double-sided multi-sample needle with a slanted bore. The compartmentalized, hard shell collection tray is not a component of the system.
8.
A complete blood count (CBC) is collected in an evacuated tube with what color stopper?
Correct Answer
B. Lavender
Explanation
A complete blood count (CBC) is collected in an evacuated tube with a lavender stopper. Different color stoppers are used for different types of blood tests to ensure proper collection and processing. In the case of a CBC, a lavender stopper is used because it contains an anticoagulant called EDTA, which prevents the blood from clotting and allows for accurate measurement of blood cell counts. The lavender stopper is specifically designed for hematological tests like CBC, making it the correct choice for collecting blood for this particular test.
9.
Which of these needle has the smallest bore or diameter?
Correct Answer
B. 23 Gauge
Explanation
The needle with the smallest bore or diameter is the 23 Gauge needle. Gauge refers to the size of the needle, with a higher gauge number indicating a smaller needle diameter. Therefore, out of the given options, the 23 Gauge needle has the smallest bore or diameter.
10.
When using two glass slides to make a blood smear, the reccomended angle of contact between them is approximately ______ degrees
Correct Answer
C. 30
Explanation
When making a blood smear using two glass slides, the recommended angle of contact between them is approximately 30 degrees. This angle allows for an optimal distribution of the blood sample on the slide, ensuring a thin and even smear. A steeper angle may result in a thicker smear, making it difficult to observe individual cells, while a shallower angle may cause the blood to spread unevenly. Therefore, a 30-degree angle is considered ideal for creating a well-prepared blood smear.
11.
When performing a routine skin puncture, the site should be alcohol cleaned and _____
Correct Answer
C. Allowed to air dry on its own
Explanation
When performing a routine skin puncture, it is important to clean the site with alcohol to disinfect it. After that, it is recommended to allow the site to air dry on its own. This is because blowing dry or using any other method to expedite the drying process may introduce contaminants or cause irritation to the puncture site. Allowing the site to air dry ensures that it is thoroughly cleaned and ready for the procedure.
12.
The body system the filters blood to eliminate waste, helps maintain blood pH and regulates water balance is the _______ system.
Correct Answer
B. Urinary
Explanation
The urinary system is responsible for filtering blood to eliminate waste, maintaining blood pH, and regulating water balance. The kidneys in the urinary system filter waste products from the blood, such as urea and excess water, and excrete them as urine. The urinary system also helps to regulate the balance of electrolytes and maintain the pH of the blood by reabsorbing or excreting certain ions. Overall, the urinary system plays a vital role in maintaining homeostasis and removing waste products from the body.
13.
The most important step in the performance of a venipuncture is
Correct Answer
C. Identifying the patient
Explanation
Identifying the patient is the most important step in the performance of a venipuncture because it ensures that the correct patient is receiving the procedure. This is crucial for patient safety and to prevent any mix-ups or errors in the collection of samples. By confirming the patient's identity, healthcare professionals can ensure that they are performing the venipuncture on the right individual, which is essential for accurate diagnosis and treatment.
14.
OSHA requires training and educational info be given to phlebotomists on ALL BUT WHICH ONE of the following topics?
Correct Answer
B. Preventing identification errors
Explanation
Phlebotomists are required by OSHA to receive training and educational information on various topics to ensure their safety and the safety of others. This includes knowledge about blood borne pathogens, needle and safety handling, and glass and sharps disposal. However, preventing identification errors is not explicitly mentioned in the question as a topic that OSHA requires training on. Therefore, it can be inferred that preventing identification errors is the correct answer.
15.
Which of these elements in blood is bound by EDTA in a collection tube to prevent clotting?
Correct Answer
C. Calcium
Explanation
EDTA (ethylenediaminetetraacetic acid) is commonly used as an anticoagulant in blood collection tubes to prevent clotting. It works by binding to calcium ions in the blood, which are essential for the coagulation process. By removing calcium, EDTA inhibits the activation of clotting factors and the formation of blood clots. Therefore, the correct answer is calcium.
16.
The hands of the phlebotomist should be washed _________
Correct Answer
D. All answers are correct
Explanation
The correct answer is "all answers are correct" because the hands of the phlebotomist should be washed before and after specimen collection, regardless of whether gloves are used. This is important to maintain proper hygiene, prevent the spread of infection, and ensure the accuracy of test results. Washing hands before inspection collection helps to remove any potential contaminants that could affect the sample, while washing hands after specimen collection removes any potential pathogens that may have been present on the gloves or hands during the procedure.
17.
If a glass tube breaks during centrifugation, what sequence of actions would be best?
Correct Answer
C. Stop the centrifuge open the lid and use forceps to remove any glass
Explanation
In the event of a glass tube breaking during centrifugation, the best sequence of actions would be to stop the centrifuge to prevent further damage or injury. Then, it is important to open the lid carefully to avoid any potential hazards. Finally, using forceps to remove any broken glass is the safest way to handle the situation and prevent any potential harm.
18.
Whic of these is a common component of disinfectant solutions used for colection of blood cultures?
Correct Answer
A. Chlorhexidine
Explanation
Chlorhexidine is commonly used as a component in disinfectant solutions for the collection of blood cultures. It is known for its broad-spectrum antimicrobial properties and is effective against a wide range of bacteria, fungi, and viruses. Chlorhexidine is often used as a skin antiseptic due to its ability to kill or inhibit the growth of microorganisms on the skin, reducing the risk of infection during procedures such as blood culture collection.
19.
If the information of the patients id breacelet is NOT identical to the information on the phlebotomy test requisition and labels for that patient, the phlebotomist should _____
Correct Answer
B. Refrain from drawing the sample until ID is resolved
Explanation
If the information on the patient's ID bracelet does not match the information on the phlebotomy test requisition and labels, the phlebotomist should refrain from drawing the sample until the ID is resolved. This is important to ensure accurate and reliable test results, as drawing the sample without proper identification could lead to misdiagnosis or incorrect treatment. It is crucial to verify the patient's identity before proceeding with any medical procedure to avoid any potential harm or errors.
20.
Before performing a venipuncture, why will a phlebotomist tie a tourniquet?
Correct Answer
C. To help locate the veins in the antecubital
Explanation
A phlebotomist ties a tourniquet before performing a venipuncture to help locate the veins in the antecubital. By applying pressure to the area, the veins become more visible and easier to access, ensuring a successful blood draw.
21.
When a 5 millimeter evacuated tube appears to extract blood with too much force from a weak wein (causing the vein to collapse) the phlebotomist might have better results using a ______
Correct Answer
C. Pediatric sized tube
Explanation
When a 5 millimeter evacuated tube appears to extract blood with too much force from a weak vein, causing the vein to collapse, using a pediatric sized tube might yield better results. This is because a pediatric sized tube has a smaller diameter compared to other options, allowing for a gentler extraction of blood that is less likely to cause the vein to collapse.
22.
To collect blood for a prothrombin time test, use an eacuated tube with a ____ colored stopper
Correct Answer
A. Light blue
Explanation
The correct answer is light blue because an evacuated tube with a light blue stopper is commonly used for collecting blood for a prothrombin time test. The light blue stopper indicates that the tube contains sodium citrate as an anticoagulant, which is necessary for accurate prothrombin time testing. Sodium citrate prevents blood from clotting by binding to calcium ions, allowing for the measurement of clotting time. Therefore, using a light blue stopper ensures the proper collection and preservation of blood samples for prothrombin time testing.
23.
One bedside (point of care) laboratory test that is used before surgery to check whether a patient has a sufficient number of working platelets is known as the ___ test.
Correct Answer
C. Partial thromboplastin time
Explanation
The correct answer is partial thromboplastin time. This test is used before surgery to assess the patient's blood clotting ability by measuring the time it takes for blood to clot. It specifically evaluates the intrinsic pathway of the clotting cascade, which involves factors such as platelets and clotting proteins. By checking the partial thromboplastin time, healthcare professionals can ensure that the patient has an adequate number of functioning platelets to prevent excessive bleeding during surgery.
24.
Paul phlebotomist draws CBC on patient fred jones , labels the lavender top tube and remove his gloves to go to lunch. Before he can leave patient Sam smith is sent to phlebotomist to have a full lipid profile drawn. paul puts on new gloves and draws a red top tube he recors the # hours post prandial. what step is missing?
Correct Answer
A. Hands arent washed in between
Explanation
The step that is missing is that the phlebotomist did not wash his hands in between drawing the lavender top tube for Fred Jones and drawing the red top tube for Sam Smith. Proper hand hygiene, including handwashing, is an essential step in preventing the spread of infections and maintaining patient safety in healthcare settings.
25.
To collect blood without an addititve use an evacuated tube with a ___ colored stopper
Correct Answer
B. Red
Explanation
The correct answer is red because an evacuated tube with a red colored stopper is typically used to collect blood without an additive. Different color stoppers are used for different types of blood collection tubes, and the red stopper is specifically designed for collecting plain blood samples without any additives or anticoagulants.
26.
Can a phlebotomist legally draw blood from a fully cognizant (awake and aware) patient who refuses consent to it?
Correct Answer
A. No
Explanation
The correct answer is "no" because drawing blood from a fully cognizant patient without their consent is a violation of their rights and autonomy. Informed consent is a fundamental principle in medical ethics, and healthcare professionals must respect a patient's decision to refuse any medical procedure, including blood draw.
27.
The single, most important way to prevent the spread of infection while performing phlebotomy is by __________.
Correct Answer
C. Washing hands
Explanation
Washing hands is the most important way to prevent the spread of infection during phlebotomy. This is because hands come into direct contact with patients and contaminated surfaces, making them a potential source of infection transmission. Proper hand hygiene, including washing hands with soap and water or using hand sanitizers, helps to remove or kill microorganisms that may be present on the hands, reducing the risk of spreading infections to oneself or others. Wearing a mask, cleaning spills, and burning waste are important infection control measures, but they are not as crucial as proper hand hygiene in preventing the spread of infection during phlebotomy.
28.
After drawing blood from a patient, the phlebotomist should dispose of the needle by __________.
Correct Answer
B. Depositing it in an approved "sharps container"
Explanation
After drawing blood from a patient, the phlebotomist should dispose of the needle by depositing it in an approved "sharps container". This is the correct answer because sharps containers are specifically designed to safely contain and dispose of used needles. Breaking the needle or disposing of it in waste cans can pose a risk of injury to others and is not a recommended method of disposal. Recapping the needle can also be dangerous and increases the risk of accidental needlestick injuries. Therefore, the safest and proper method of disposal is to use a sharps container.
29.
Negligence by a professional person is called __________.
Correct Answer
C. Malpractice
Explanation
Negligence by a professional person is commonly referred to as malpractice. This term is specifically used when a professional fails to meet the expected standard of care in their field, resulting in harm or injury to another person. It is often associated with professions such as medicine, law, and accounting, where the actions or omissions of professionals can have significant consequences.
30.
Which of the following is the single most common source of HIV and HBV in the workplace?
Correct Answer
D. Blood
Explanation
Blood is the single most common source of HIV and HBV in the workplace because both viruses can be present in blood and can be transmitted through contact with infected blood. Semen, saliva, and pleural fluid may also contain the viruses, but they are not as commonly transmitted in the workplace compared to blood.
31.
The heart, lymphatic organs, and blood vessels are in the __________.
Correct Answer
B. Cardiovascular system
Explanation
The heart, lymphatic organs, and blood vessels are all components of the cardiovascular system. The cardiovascular system is responsible for circulating blood throughout the body, delivering oxygen and nutrients to cells, and removing waste products. This system includes the heart, which pumps blood, as well as the blood vessels, which transport blood, and the lymphatic organs, which help to filter and maintain the fluid balance of the body. Therefore, the cardiovascular system is the correct answer.
32.
The venipuncture site should be cleansed in a circular motion from the center to the __________.
Correct Answer
A. PeripHery
Explanation
When performing a venipuncture, it is important to cleanse the site properly to prevent infection. The correct technique involves cleansing the site in a circular motion from the center to the periphery. This ensures that any potential contaminants are pushed away from the puncture site, reducing the risk of introducing bacteria into the bloodstream. Cleansing in the opposite direction or at the injection point may increase the chances of contamination, making these options incorrect. Therefore, the correct answer is periphery.
33.
Within the capillaries, blood cells __________.
Correct Answer
A. Give away oxygen
Explanation
Within the capillaries, blood cells release oxygen to the surrounding tissues. This process is known as oxygenation. Oxygen is transported by red blood cells, which bind to oxygen in the lungs and carry it to different parts of the body. Once the oxygen is delivered, the red blood cells pick up carbon dioxide, a waste product of cellular respiration, and transport it back to the lungs to be exhaled. Additionally, blood cells also pick up other waste products generated by cells and transport them to organs responsible for their elimination. Therefore, the correct answer is "give away oxygen, pick up carbon dioxide, and pick up waste products."
34.
Which is not an infection control method?
Correct Answer
C. SpHygmomanometers
Explanation
Sphygmomanometers are not an infection control method because they are medical devices used to measure blood pressure, not to prevent or control infections. Protective clothing, biohazard containers, and hand washing are all infection control methods commonly used in healthcare settings to reduce the transmission of pathogens and maintain a safe environment.
35.
Safe working conditions for employees are regulated by __________.
Correct Answer
B. OSHA
Explanation
Safe working conditions for employees are regulated by OSHA, which stands for the Occupational Safety and Health Administration. OSHA is a federal agency that sets and enforces standards to ensure safe and healthy working conditions for employees in the United States. They provide guidelines and regulations that employers must follow to protect their workers from hazards, such as unsafe machinery, toxic substances, and dangerous working environments. OSHA also conducts inspections and investigations to ensure compliance with these standards and can impose penalties on employers who fail to provide a safe workplace.
36.
Which of the following are types of tourniquets used in specimen collection?
Correct Answer
C. Pliable strap
Explanation
A pliable strap is a type of tourniquet used in specimen collection. It is a flexible and adjustable strap that can be tightened around the arm to restrict blood flow. This helps in locating and accessing veins for blood collection. Velcro and blood pressure cuff are not types of tourniquets used in specimen collection.
37.
The color of normal serum is usually __________.
Correct Answer
A. Straw to yellow
Explanation
Normal serum is usually straw to yellow in color. This is because serum is the clear, yellowish fluid that remains after blood has clotted and the blood cells have been removed. The color of serum is determined by various factors, including the presence of certain pigments and proteins. In a healthy individual, the serum is typically a pale yellow color, resembling straw. This color can vary slightly depending on the individual's hydration status and diet.
38.
Which of the following conditions would stop a phlebotomist from drawing blood from a patient's vein?
Correct Answer
A. Same side mastectomy
Explanation
A phlebotomist would avoid drawing blood from an arm on the same side as a mastectomy. This is because lymph node removal or damage during mastectomy can lead to complications such as lymphedema, which can be exacerbated by blood draws or the application of pressure to the limb. Therefore, out of the conditions listed, a same-side mastectomy would be a contraindication for venipuncture on that side.
39.
Chemicals that precent blood from clotting are called __________.
Correct Answer
C. Anticoagulants
Explanation
Anticoagulants are chemicals that prevent blood from clotting. They work by inhibiting the formation of blood clots, which can be harmful and lead to conditions such as deep vein thrombosis or stroke. Unlike preservatives, which are substances used to prevent decay or spoilage, or activators, which initiate or enhance a chemical reaction, anticoagulants specifically target the clotting process in the blood. Adhesives, on the other hand, are substances used to bind or stick things together, and are unrelated to blood clotting.
40.
Red and white blood cell counts are examples of __________ tests.
Correct Answer
C. Hematology
Explanation
Red and white blood cell counts are examples of hematology tests because hematology is the branch of medicine that deals with the study of blood, blood-forming organs, and blood diseases. This branch specifically focuses on the examination of blood cells, including red blood cells and white blood cells, to diagnose and monitor various conditions and diseases related to the blood. Therefore, hematology is the correct answer in this context.
41.
Treating all specimens as if they are hazardous and infectionsis the basis for __________.
Correct Answer
C. Universal precautions
Explanation
Treating all specimens as if they are hazardous and infectious is the basis for universal precautions. Universal precautions refer to the practice of treating all patients and specimens as potentially infectious, regardless of their actual infection status. This approach helps to minimize the risk of transmission of pathogens and ensures the safety of healthcare workers and others who come into contact with potentially infectious materials.
42.
Drugs used to destroy or kill bacteria that cause disease, are called __________.
Correct Answer
D. Anitbiotics
Explanation
Antibiotics are drugs that are specifically designed to destroy or kill bacteria that cause disease. They work by targeting the structure or function of bacteria, either by inhibiting their growth or by directly killing them. Disinfectants, germicides, and sterilizers are all types of agents that are used to kill or eliminate microorganisms, but they are not specifically targeted towards bacteria. Therefore, the correct answer is antibiotics.
43.
When the heart is contracting, the pressure is highest. This pressure is called the __________.
Correct Answer
A. Systolic pressure
Explanation
During the contraction of the heart, known as systole, blood is forcefully pumped out of the heart into the arteries. This results in a peak pressure that is exerted on the walls of the arteries. This peak pressure is referred to as systolic pressure. It represents the maximum pressure within the arterial system and is typically measured as the higher value in a blood pressure reading.
44.
The process by which an object or area becomes unclean is known as __________.
Correct Answer
A. Contamination
Explanation
Contamination refers to the process in which an object or area becomes unclean. It involves the introduction of harmful or unwanted substances, such as dirt, germs, or pollutants, into the object or area. This can occur through direct contact, airborne particles, or other means. Contamination can have negative consequences, as it can lead to the spread of diseases, compromised safety, or reduced effectiveness of products or environments.
45.
The health care worker is protected by law if it can be determined that he or she acted as expected when compared with fellow workers. This is called __________.
Correct Answer
B. Reasonable care
Explanation
The concept being described in the question is that a health care worker is protected by law if they can demonstrate that their actions were in line with what would be expected of their colleagues in similar circumstances. This concept is known as "reasonable care." It suggests that as long as the health care worker acted in a manner that was considered reasonable and appropriate compared to their peers, they will be protected legally.
46.
Which of the following is not known to transmit HIV?
Correct Answer
D. Sweat
Explanation
Sweat is not known to transmit HIV because the virus cannot survive outside the human body for long periods of time. HIV is primarily transmitted through specific bodily fluids such as blood, semen, vaginal secretions, and breast milk, which contain a high concentration of the virus. However, sweat does not contain enough HIV to transmit the infection, making it an unlikely mode of transmission.
47.
Consent to treament based upon full understanging of all possible risks of unpreventable results of treatment is called __________.
Correct Answer
C. Assumption of risk
Explanation
Assumption of risk refers to the consent given by a patient for a particular treatment after fully understanding all the potential risks and unavoidable outcomes associated with it. It implies that the patient willingly accepts the risks involved and cannot hold the healthcare provider responsible for any negative consequences that may arise from the treatment. This concept is important in medical ethics and legal frameworks to ensure that patients are fully informed and have the autonomy to make decisions about their own healthcare.
48.
Infections that can be spread from person to person are called __________.
Correct Answer
B. Communicable
Explanation
Infections that can be spread from person to person are called communicable. This term refers to diseases or illnesses that can be transmitted through direct contact, such as through respiratory droplets, bodily fluids, or skin-to-skin contact. Communicable diseases can also be spread indirectly through contaminated objects or surfaces. This term is commonly used in the field of public health to describe the ability of an infection to be passed from one individual to another.
49.
A tube adapter that has been visibly contaminated with blood should be disposed of in __________.
Correct Answer
C. A biohazardous waste container
Explanation
A tube adapter that has been visibly contaminated with blood should be disposed of in a biohazardous waste container because blood is considered a biohazardous material. This container is specifically designed to safely contain and dispose of materials that may pose a risk to human health or the environment. It is important to properly dispose of biohazardous waste to prevent the spread of infectious diseases and to comply with safety regulations.
50.
A violation of a person's right to have his or her name, photograph, or private affairs made public without giving consent is called __________.
Correct Answer
C. Invasion of privacy
Explanation
Invasion of privacy refers to the act of violating someone's right to keep their personal information, such as their name, photograph, or private affairs, confidential and not made public without their consent. It is a breach of an individual's privacy rights and can have legal consequences. Assault, malpractice, and battery are unrelated to the violation of privacy rights.