1.
Heart sounds are produced by
Correct Answer
C. Valves
Explanation
Heart sounds are produced by valves. The heart has four valves - the tricuspid valve, pulmonary valve, mitral valve, and aortic valve. These valves open and close to regulate the flow of blood through the heart. When the valves close, they produce distinct sounds known as heart sounds. These sounds can be heard using a stethoscope and are an important diagnostic tool for assessing the health and functioning of the heart.
2.
Heart Sound S1 is best heard at the
Correct Answer
C. Left fifth intercostal place (at the apex)
Explanation
Heart Sound S1 is the first heart sound, also known as the "lub" sound, which is produced by the closure of the mitral and tricuspid valves during ventricular systole. This sound is best heard at the apex of the heart, which is located at the left fifth intercostal space. This is because the apex is closest to the mitral valve, which is responsible for producing the S1 sound. Therefore, the correct answer is the left fifth intercostal place (at the apex).
3.
The middle layer of the heart is called
Correct Answer
B. Myocardium
Explanation
The middle layer of the heart is called the myocardium. This layer is composed of cardiac muscle tissue, which is responsible for the contraction and pumping action of the heart. The myocardium is thicker in the left ventricle, as it needs to generate enough force to pump oxygenated blood to the rest of the body. It is also highly vascularized to ensure a constant supply of oxygen and nutrients to the heart muscle itself.
4.
The part of a syringe that shows measurements in cc or ml is called the:
Correct Answer
B. Barrel
Explanation
The part of a syringe that shows measurements in cc or ml is called the barrel. The barrel is the cylindrical tube-like structure of the syringe that holds the medication or fluid being administered. It is marked with measurements in cc or ml to accurately measure and administer the desired dosage. The barrel is an essential component of the syringe that allows healthcare professionals to accurately and safely administer medications or fluids to patients.
5.
Which of the following is an organ of the digestive system?
Correct Answer
D. Small intestine
Explanation
The small intestine is an organ of the digestive system. It is a long tube-like structure that plays a crucial role in the digestion and absorption of nutrients from the food we eat. It receives partially digested food from the stomach and further breaks it down using enzymes and absorbs the nutrients into the bloodstream. The small intestine is responsible for the majority of nutrient absorption in the body and is an essential component of the digestive process.
6.
While selecting a vein for venipuncture you feel a distinct pulse. What you are feeling is a/an
Correct Answer
D. Artery
Explanation
When selecting a vein for venipuncture, feeling a distinct pulse indicates that what you are feeling is an artery. Arteries carry oxygenated blood away from the heart to the rest of the body, and they have a strong pulse due to the forceful pumping of blood by the heart. Veins, on the other hand, carry deoxygenated blood back to the heart and do not have a strong pulse. Nerves and lymphatic vessels do not typically produce a pulse sensation.
7.
The blood vessels that carry oxygenated blood away from the heart are called:
Correct Answer
D. Arteries
Explanation
Arteries are the blood vessels that carry oxygenated blood away from the heart. They have thick and elastic walls that allow them to handle the high pressure of blood being pumped by the heart. Arteries branch out into smaller blood vessels called arterioles, which further divide into capillaries. Capillaries are responsible for the exchange of oxygen and nutrients with the body's tissues. After oxygen is delivered to the tissues, the blood becomes deoxygenated and is carried back to the heart through veins. Venules are small blood vessels that collect blood from capillaries and merge to form veins.
8.
In the lungs, the blood vessels pick up oxygen and get rid of:
Correct Answer
B. Carbon dioxide
Explanation
In the lungs, the blood vessels pick up oxygen from the air we breathe in and release carbon dioxide, which is a waste product produced by our body's cells. Carbon dioxide is transported through the bloodstream back to the lungs, where it is exhaled out of the body. Nitrogen is not involved in this process, as it is a major component of the air we breathe in and does not undergo any significant changes in the lungs. Carbon monoxide, on the other hand, is a toxic gas that can be produced by incomplete combustion and is not a normal waste product of our body.
9.
The largest artery that carries blood to all that parts of the body from the left side of the heart is called:
Correct Answer
B. Aorta
Explanation
The aorta is the largest artery in the body and carries oxygenated blood from the left side of the heart to all parts of the body. It is responsible for supplying oxygen and nutrients to all organs and tissues. The vena cava, on the other hand, is a large vein that carries deoxygenated blood from the body back to the right side of the heart. Carotid and mesenteric arteries are important arteries in the body, but they do not carry blood from the left side of the heart to all parts of the body.
10.
Blood from the pulmonary vein returns to the:
Correct Answer
B. Left atrium
Explanation
Blood from the pulmonary vein returns to the left atrium. The pulmonary vein carries oxygenated blood from the lungs back to the heart. Once the blood reaches the left atrium, it is then pumped into the left ventricle and eventually out to the rest of the body. The left atrium acts as a receiving chamber for oxygenated blood, allowing it to flow smoothly into the heart's pumping system.
11.
The blood from the heart travels to the lungs to pick up oxygen through the :
Correct Answer
A. Pulmonary arteries
Explanation
The blood from the heart travels to the lungs to pick up oxygen through the pulmonary arteries. These arteries carry deoxygenated blood from the right ventricle of the heart to the lungs, where it is oxygenated. Once the blood is oxygenated, it returns to the heart through the pulmonary veins. The pulmonary arteries are specifically designed to transport blood to the lungs for the purpose of oxygenation.
12.
The two upper chamber of the heart are called:
Correct Answer
B. Atria
Explanation
The two upper chambers of the heart are called atria. The atria receive blood returning to the heart from the body and lungs. They then contract to push the blood into the lower chambers of the heart, called ventricles, which then pump the blood out to the rest of the body. The peritoneal cavities are not chambers of the heart, but rather spaces within the abdominal cavity. Nodes, in the context of the heart, typically refer to the sinoatrial (SA) node and atrioventricular (AV) node, which are specialized tissues that regulate the electrical signals that control the heart's rhythm.
13.
Butterfly needles are used to collect specimens from
Correct Answer
D. All of the above
Explanation
Butterfly needles are used to collect specimens from difficult veins, hand veins, and small veins. These types of veins can be challenging to access and require a smaller, more delicate needle like a butterfly needle. This type of needle allows for easier insertion and reduces the risk of injury or discomfort to the patient. Therefore, the correct answer is all of the above.
14.
The best anticoagulant for collecting for a glucose determination is
Correct Answer
D. Sodium fluoride
Explanation
Sodium fluoride is the best anticoagulant for collecting samples for a glucose determination because it inhibits the action of enzymes that break down glucose, preventing its degradation. This allows for accurate measurement of glucose levels in the sample. Lithium heparin, potassium oxalate, and EDTA are also commonly used anticoagulants, but they do not have the same inhibitory effect on glucose-degrading enzymes as sodium fluoride.
15.
This test is collected in a light blue top tube.
Correct Answer
C. Prothrobin time
Explanation
The correct answer is Prothrobin time because it is a test that measures how long it takes for blood to clot. The fact that the test is collected in a light blue top tube suggests that it requires an anticoagulant, which is necessary for accurate measurement of clotting time. The other options, glucose, platelet count, and red blood count, do not typically require a light blue top tube for collection.
16.
A butterfly is a(n):
Correct Answer
C. Needle with wings for drawing difficult patients
Explanation
The correct answer is "Needle with wings for drawing difficult patients." This answer is correct because a butterfly needle, also known as a winged infusion set, is a type of needle that has small "wings" on the sides. These wings provide stability and control when inserting the needle into the vein, making it easier to draw blood from patients who may be difficult to access.
17.
This complication results from repeated venipuncture of the same vein:
Correct Answer
D. pHlebitis
Explanation
Phlebitis is the inflammation of a vein, usually caused by repeated venipuncture. This can occur when the same vein is punctured multiple times, causing irritation and damage to the vein wall. Symptoms of phlebitis include redness, swelling, and pain around the site of the puncture. Therefore, phlebitis is the most likely complication that would result from repeated venipuncture of the same vein.
18.
A red top vacuum tube contains:
Correct Answer
C. No anticoagulant
Explanation
The red top vacuum tube does not contain any anticoagulant. Anticoagulants are substances that prevent the blood from clotting, and their absence in the tube suggests that clotting is not a concern for the sample being collected. This type of tube is often used for collecting serum samples, where clotting is desired to separate the liquid portion of the blood (serum) from the clot.
19.
Blood returning from the body is delivered to the right side of the heart through the:
Correct Answer
C. Inferior & Superior Vena cava
Explanation
Blood returning from the body is delivered to the right side of the heart through the Inferior and Superior Vena Cava. These are the two largest veins in the body and they carry deoxygenated blood from the body back to the heart. The Inferior Vena Cava brings blood from the lower body, while the Superior Vena Cava brings blood from the upper body. This blood is then pumped into the right atrium of the heart, where it is then sent to the lungs to be oxygenated.
20.
A cheerful, pleasant bedside manner and exchange of small talk help to:
Correct Answer
D. All of the above
Explanation
A cheerful, pleasant bedside manner and exchange of small talk help to divert attention from any discomfort associated with a medical procedure. This can help the patient feel more at ease and comfortable during the procedure. Additionally, this kind of interaction can help to build trust between the patient and the healthcare provider, as it shows empathy and care for the patient's well-being. Overall, this approach can contribute to a positive patient experience and enhance the doctor-patient relationship.