1.
When auscultating the heart, which of the following guidelines may be used to identify S2?
Correct Answer
C. S2 is louder at the base than S1
Explanation
S2 is louder at the base than S1 because the closure of the aortic and pulmonic valves during systole produces the second heart sound (S2). The aortic valve is located at the base of the heart, while the mitral valve (which produces the first heart sound, S1) is located at the apex. Therefore, the sound of S2 is typically louder at the base of the heart compared to S1.
2.
Valves are not present between which of the following structures of the heart?
Correct Answer
A. The right atria and the superior vena cava
Explanation
The right atria and the superior vena cava do not have valves between them. Valves in the heart are responsible for preventing the backflow of blood and ensuring that it flows in the correct direction. However, in this specific location, there are no valves present. The superior vena cava is a large vein that carries deoxygenated blood from the upper body to the right atrium of the heart. Since there are no valves between the right atria and the superior vena cava, blood can flow freely between these structures.
3.
Which of the following assessment parameters related to the jugular vein is considered to be normal or expected?
Correct Answer
B. A jugular vein that is distended when the individuals is in the supine position
Explanation
The jugular vein is normally expected to be distended when an individual is in the supine position. This is because the gravitational force causes blood to accumulate in the jugular veins, leading to their distention. This is a normal finding and indicates that the venous system is functioning properly.
4.
ECG is an abbreviation for which of the following?
Correct Answer
A. Electrocardiogram
Explanation
ECG is an abbreviation for Electrocardiogram, a medical test that records the electrical activity of the heart. It is used to diagnose various heart conditions by measuring the heart's rhythm and detecting any abnormalities. An ECG is a non-invasive procedure that involves attaching electrodes to the skin to detect and record the electrical signals produced by the heart. This abbreviation is commonly used in medical settings and is widely recognized within the healthcare field.
5.
A bruit heard while auscultating the carotid artery of a 65-year-old female is caused by which of the following?
Correct Answer
B. Turbulent blood flow through the carotid artery
Explanation
A bruit heard while auscultating the carotid artery of a 65-year-old female is caused by turbulent blood flow through the carotid artery. A bruit is an abnormal sound caused by the turbulent blood flow due to narrowed or blocked arteries. In this case, the bruit is specifically heard in the carotid artery, indicating a possible blockage or narrowing in this artery. Carotid artery disease is a common cause of bruits in older individuals, and it is important to further evaluate and manage this condition to prevent potential complications such as stroke.
6.
Which of the following is true regarding the venous pulse wave?
Correct Answer
D. It results from a backwash of pressure from events that occur in the heart.
Explanation
The venous pulse wave is a result of a backwash of pressure from events that occur in the heart. This means that when the heart contracts and pumps blood out, there is a temporary increase in pressure in the arteries. This increase in pressure causes a backwash of pressure in the veins, resulting in the venous pulse wave. It does not result in an increase in cardiac volume or blood pressure, as stated in the other options.
7.
Which of the following cardiac alterations occurs in the pregnant female?
Correct Answer
A. An increase in cardiac volume, a decrease in blood pressure
Explanation
During pregnancy, the body undergoes several changes to accommodate the growing fetus. One of these changes is an increase in cardiac volume, which means that the amount of blood pumped by the heart per minute increases. This is necessary to meet the increased demands of the mother and the developing baby. Additionally, there is a decrease in blood pressure due to the expansion of blood vessels and changes in hormonal levels. These alterations help ensure adequate blood flow to the placenta and prevent complications during pregnancy.
8.
The cardiac output is defined as the:
Correct Answer
A. Amount of blood pumped by the heart in 1 min.
Explanation
The cardiac output is a measure of the amount of blood pumped by the heart in a minute. It is an important indicator of the heart's efficiency in delivering oxygen and nutrients to the body's tissues. This measurement helps in assessing the overall cardiovascular health and can be used to diagnose and monitor various heart conditions.
9.
A heave or lift that is visible on the anterior precordium occurs in the presence of:
Correct Answer
C. Ventricular hyperthropy
Explanation
A heave or lift that is visible on the anterior precordium occurs in the presence of ventricular hypertrophy. Ventricular hypertrophy refers to the thickening and enlargement of the heart muscle, specifically the ventricles. This can be a result of conditions such as high blood pressure, heart valve disease, or heart failure. The increased muscle mass in the ventricles causes the heart to work harder to pump blood, leading to the visible heave or lift on the chest. Atrial hypertrophy, dorsal hypertrophy, and pulmonary hypertrophy do not typically cause a visible heave on the anterior precordium.
10.
During isometric or isovolumic relaxation of the ventricles, which of the following takes place?
Correct Answer
B. All four valves are closed
Explanation
During isometric or isovolumic relaxation of the ventricles, all four valves are closed. This is because isovolumic relaxation is the phase of the cardiac cycle where the ventricles are relaxed and the pressure inside them is decreasing. During this phase, the atria are filling with blood and the ventricles are not contracting. As a result, all four valves, including the atrioventricular (AV) valves (mitral and tricuspid) and the semilunar valves (aortic and pulmonary), are closed to prevent backflow of blood from the arteries and veins into the ventricles.
11.
If an individual is describing symptoms that relate to waking up in the middle of the night with difficulty breathing and opening a window because there was a need for fresh air, your assessment might lead you to believe that the individual may have:
Correct Answer
A. Paroxysmal nocturnal dyspnea
Explanation
Based on the symptoms described, the individual is experiencing difficulty breathing and feels the need to open a window for fresh air during the night. This is characteristic of paroxysmal nocturnal dyspnea, a condition where a person wakes up suddenly in the middle of the night gasping for breath. This condition is often associated with heart failure or other cardiac issues that cause fluid to accumulate in the lungs while lying down. Dysphagia refers to difficulty swallowing, which is not mentioned in the symptoms. "Haroxysmal" seems to be a misspelling of "paroxysmal" and does not provide any relevant information. "Disturbed sleep" is a general term and does not specifically indicate the cause of the symptoms.
12.
The jugular venous pressure is an indirect reflection of the:
Correct Answer
D. Heart's efficiency as a pump
Explanation
The jugular venous pressure is a measure of the pressure in the jugular vein, which is a major vein that returns blood from the head and neck to the heart. The pressure in the jugular vein is influenced by the efficiency of the heart as a pump. If the heart is not pumping efficiently, blood can back up into the veins, leading to an increased jugular venous pressure. Therefore, the jugular venous pressure is an indirect reflection of the heart's efficiency as a pump. It is not directly related to cardiac output, stroke volume, or the mitral valve.
13.
When palpating the chest wall of a 24-year-old male with well-developed chest muscles, which of the following would you expect to find?
Correct Answer
B. Nonpalpable apex pulse
Explanation
In a 24-year-old male with well-developed chest muscles, it is expected to find a nonpalpable apex pulse. The apex pulse is normally located at the fifth intercostal space in the midclavicular line, but in individuals with well-developed chest muscles, the muscle bulk can make it difficult to feel the pulse. The base pulse, on the other hand, is easier to palpate as it is located at the second intercostal space along the right sternal border.
14.
When auscultating the heart of a newborn, you hear a continouos sound that mimics the sound of a machine. Based on your knowledge of newborn cardiac physiology, you know that this:
Correct Answer
D. Is an expected sound due to nonclosure of the ductus arteriosus
Explanation
The continuous sound that mimics the sound of a machine heard when auscultating the heart of a newborn is an expected sound due to nonclosure of the ductus arteriosus. The ductus arteriosus is a blood vessel that connects the pulmonary artery to the aorta in a fetus. It normally closes shortly after birth, but in some cases, it remains open, causing blood to flow between the two vessels. This can result in the continuous sound known as a machinery murmur. Therefore, the correct answer is that the sound is an expected sound due to nonclosure of the ductus arteriosus.
15.
A split S2 heart sound is generally best heard:
Correct Answer
B. At the end of inhalation
Explanation
A split S2 heart sound is generally best heard at the end of inhalation. This is because during inhalation, the negative pressure in the thoracic cavity causes increased blood flow into the right side of the heart, leading to a delayed closure of the pulmonic valve. As a result, the second heart sound, which is normally a single "dub" sound, is split into two components - A2 and P2. The split is best heard at the end of inhalation when the pulmonic valve closure is more pronounced.
16.
During ventricular diastole, which of the ff activities takes place?
Correct Answer
C. Blood pours rapidly into the ventricles.
Explanation
During ventricular diastole, the ventricles of the heart are relaxed and filling with blood. This is the phase of the cardiac cycle where the atrioventricular valves are open, allowing blood to flow from the atria into the ventricles. The contraction of the atria helps to push the blood into the ventricles, resulting in the rapid pouring of blood into the ventricles. This filling of the ventricles during diastole is important for the subsequent contraction of the ventricles during systole, allowing for efficient pumping of blood out of the heart.
17.
The first heart sound is caused by closure of the:
Correct Answer
A. AV valves
Explanation
The first heart sound, also known as S1, is caused by the closure of the AV valves. These valves, including the tricuspid valve on the right side and the mitral valve on the left side, separate the atria from the ventricles. When the ventricles contract during systole, the pressure inside the ventricles increases, causing the AV valves to close tightly. This closure produces the characteristic "lub" sound heard during the cardiac cycle. The semilunar valves, on the other hand, are responsible for preventing backflow of blood from the arteries into the ventricles and do not contribute to the first heart sound.
18.
Which of the ff. is a characteristic of a fixed split?
Correct Answer
C. It is unaffected by respiration
Explanation
A fixed split is a characteristic of a fixed split. It is unaffected by respiration, meaning that it remains constant regardless of the individual's breathing pattern or rate. This characteristic distinguishes it from other types of splits, such as variable splits, which can change depending on respiration.
19.
Of the ff. individuals who are being screened for high blood pressure, individuals in which ethnic group are known to have higher incidences of high blood pressure?
Correct Answer
D. Blacks
Explanation
Blacks are known to have higher incidences of high blood pressure compared to Hispanics, Asians, and Whites. This is supported by various studies and research that have consistently shown a higher prevalence of high blood pressure in the Black population. Factors such as genetic predisposition, socio-economic disparities, and lifestyle choices contribute to this higher incidence.
20.
In adults, the thymus gland:
Correct Answer
B. Serves no purpose
Explanation
The thymus gland serves no purpose in adults. The thymus is an organ located in the chest, and it plays a crucial role in the development and maturation of T-lymphocytes, which are important for immune system function. However, as individuals reach adulthood, the thymus gland gradually decreases in size and becomes less active. By the time a person reaches adulthood, the thymus gland has usually shrunk significantly and is no longer involved in the production of T-lymphocytes. Therefore, in adults, the thymus gland does not serve any significant purpose in the immune system.
21.
A profile sign indicates:
Correct Answer
D. Early clubbing
Explanation
A profile sign refers to the angle between the nail bed and the nail plate. In the case of early clubbing, the angle becomes greater than 180 degrees. This can be an indication of underlying medical conditions such as lung or heart disease. Therefore, the correct answer for this question is early clubbing.
22.
Pitting edema is defined as:
Correct Answer
B. The indentation left after the examiner depresses the skin over swollen edematous tissue
Explanation
Pitting edema is the term used to describe the indentation or "pit" that remains in the skin after it is pressed and then released over swollen and edematous tissue. This occurs due to an accumulation of fluid in the tissue, causing the skin to retain an impression when pressure is applied. It is commonly observed in conditions such as heart failure, kidney disease, and liver disease, where fluid retention is a common symptom.
23.
The Allen test assesses:
Correct Answer
B. The patency of the radial and ulnar arteries
Explanation
The Allen test is used to assess the patency of the radial and ulnar arteries in the hand. It is performed by occluding both arteries and then releasing pressure on one while observing the return of blood flow to the hand. This test helps to determine the adequacy of collateral circulation in case one of the arteries is occluded or damaged. It is commonly used before procedures such as arterial blood gas sampling or radial artery cannulation to ensure proper blood flow to the hand.
24.
A weak or "thready" pulse is associated with:
Correct Answer
D. Heart failure
Explanation
A weak or "thready" pulse is associated with heart failure. Heart failure occurs when the heart is unable to pump enough blood to meet the body's needs. This can result in a decrease in cardiac output, which is the amount of blood pumped by the heart per minute. As a result, the pulse may become weak and thready, indicating a reduced force of blood being pumped through the arteries.
25.
One of the leg's deep veins is the:
Correct Answer
A. Great sapHenous
Explanation
The great saphenous vein is one of the deep veins in the leg. It is the longest vein in the body and runs along the inside of the leg, from the foot to the groin. It plays a crucial role in returning blood from the lower extremities back to the heart. The small saphenous vein, tibial vein, and popliteal vein are also veins in the leg, but they are not classified as deep veins like the great saphenous vein.
26.
In pulsus paraxodus:
Correct Answer
D. Beats have weaker amplitude with respiratory inspiration and stronger with expiration
Explanation
In pulsus paraxodus, the beats have weaker amplitude with respiratory inspiration and stronger with expiration. This means that the strength or force of the pulse varies depending on whether the person is inhaling or exhaling. During inspiration, when the person is taking in air, the pulse beats are weaker in amplitude. On the other hand, during expiration, when the person is exhaling, the pulse beats are stronger in amplitude. This variation in pulse strength with respiration can be observed in individuals with certain cardiac or respiratory conditions.
27.
Thrombophlebitis is defined as:
Correct Answer
D. An inflammation of the vein associated with thrombus formation
Explanation
Thrombophlebitis is defined as an inflammation of the vein associated with thrombus formation. This means that it is the inflammation of a vein that occurs when a blood clot (thrombus) forms within the vein. This can cause pain, swelling, and redness in the affected area. The presence of the thrombus can impede blood flow and lead to further complications if not treated. Therefore, the correct answer is an inflammation of the vein associated with thrombus formation.
28.
The major artery to the leg is the:
Correct Answer
C. Femoral
Explanation
The femoral artery is the major artery that supplies blood to the leg. It is the largest branch of the external iliac artery and runs down the front of the thigh. It provides oxygenated blood to the muscles of the thigh and lower leg. The other options listed, such as the popliteal artery, temporal artery, and radial artery, are not major arteries that supply blood to the leg.
29.
The cervical nodes drain the:
Correct Answer
D. Head and neck
Explanation
The cervical nodes are a group of lymph nodes located in the neck region. They play a crucial role in filtering and draining lymph fluid from the head and neck area. This includes lymphatic drainage from the scalp, face, ears, throat, and other structures in the head and neck region. Therefore, the correct answer is "head and neck."
30.
An aneurysm is a:
Correct Answer
A. Sac formed by dilation in the arterial wall.
Explanation
An aneurysm is a sac formed by dilation in the arterial wall. This means that there is a bulging or ballooning in the wall of an artery, which can be caused by a weakened area in the artery. This sac-like structure can continue to grow and may eventually rupture, leading to serious health complications. It is important to detect and treat aneurysms early to prevent potential complications.
31.
Axillary nodes drain the:
Correct Answer
B. Breast and upper arm.
Explanation
Axillary nodes are a group of lymph nodes located in the armpit region. They play a crucial role in draining lymphatic fluid from the breast and upper arm. This means that any lymphatic fluid, waste products, or potential cancer cells from the breast and upper arm would flow through these axillary nodes. Therefore, the correct answer is breast and upper arm.
32.
The blood is returned to the heart through the veins by means of:
Correct Answer
D. All of the above
Explanation
Blood is returned to the heart through the veins by means of walking, breathing, and the presence of unidirectional valves. Walking helps to facilitate the movement of blood in the veins by contracting the leg muscles and squeezing the veins, which propels the blood towards the heart. Breathing also aids in this process as the pressure changes in the chest cavity during inhalation and exhalation help to move the blood towards the heart. Additionally, the presence of unidirectional valves in the veins prevents the backflow of blood, ensuring that it only flows towards the heart. Therefore, all of the above factors contribute to the return of blood to the heart through the veins.
33.
Palatine, adenoid, and lingual are specific names for:
Correct Answer
C. Tonsils
Explanation
Palatine, adenoid, and lingual are specific names for tonsils. The palatine tonsils are located on the sides of the throat, the adenoids are located at the back of the nasal cavity, and the lingual tonsils are located at the base of the tongue. These three types of tonsils are part of the lymphatic system and help to fight off infections in the throat and respiratory system.
34.
Arteriosclerosis refers to:
Correct Answer
C. Thickening and loss of elasticity of the arterial walls
Explanation
Arteriosclerosis refers to the thickening and loss of elasticity of the arterial walls. This condition occurs when the arteries become hardened and narrowed due to the buildup of plaque, which is made up of fat, cholesterol, and other substances. As a result, the arteries lose their flexibility and ability to expand and contract, leading to reduced blood flow to the organs and tissues. This can increase the risk of various cardiovascular diseases, such as heart attack and stroke.
35.
The epitrochlear nodes drain the:
Correct Answer
A. Hand and lower arm
Explanation
The epitrochlear nodes are a group of lymph nodes located in the elbow region. They specifically drain the lymphatic fluid from the hand and lower arm. Lymph nodes play a crucial role in filtering and removing waste products, toxins, and pathogens from the lymphatic system. Therefore, the epitrochlear nodes are responsible for filtering and processing lymphatic fluid from the hand and lower arm before it is returned to the bloodstream.
36.
Atherosclerosis is defined as:
Correct Answer
D. Plaques of fatty deposits forming in the intima of the arteries.
Explanation
Atherosclerosis is a condition characterized by the formation of plaques made up of fatty deposits in the inner lining (intima) of the arteries. These plaques can gradually build up over time and lead to the thickening and loss of elasticity in the arterial walls. This can result in a reduced blood flow to various organs and tissues, potentially leading to serious health complications. The other options mentioned in the question, such as a swooshing sound or a sac formed by dilation in the arterial wall, are not accurate definitions of atherosclerosis.