Nursing practice questions with comprehensive rationales
NurseDive Free Nursing Practice Question
A nurse is teaching several newly licensed nurses about cardiac valve replacement. Which of the following should the nurse include in the teaching?
A. The aortic and mitral valves are the most commonly replaced valves.
The aortic and mitral valves are the most commonly replaced valves: This statement is accurate. The aortic and mitral valves are indeed the most commonly replaced valves in cardiac valve replacement surgeries. Aortic valve replacement is commonly performed for conditions such as aortic stenosis or regurgitation, while mitral valve replacement is often indicated for mitral regurgitation or stenosis.
B. Mitral valve insufficiency occurs during the diastolic phase of the cardiac cycle.
Mitral valve insufficiency occurs during the diastolic phase of the cardiac cycle: This statement is incorrect. Mitral valve insufficiency, also known as mitral regurgitation, occurs during the systolic phase of the cardiac cycle. It involves the backflow of blood from the left ventricle into the left atrium during ventricular systole, leading to volume overload of the left atrium and potentially causing symptoms such as dyspnea and fatigue.
C. Inadequate closure of the tricuspid valve causes overload in the left ventricle.
Inadequate closure of the tricuspid valve causes overload in the left ventricle: This statement is incorrect. Inadequate closure of the tricuspid valve leads to regurgitation of blood from the right ventricle back into the right atrium during ventricular systole. This condition, known as tricuspid regurgitation, causes volume overload in the right atrium and ventricle, rather than overload in the left ventricle.
D. Aortic stenosis increases right ventricular systolic pressure and decreases afterload.
Aortic stenosis increases right ventricular systolic pressure and decreases afterload: This statement is partially correct. Aortic stenosis indeed increases left ventricular systolic pressure and decreases afterload, not right ventricular pressure. The increased afterload on the left ventricle can lead to left ventricular hypertrophy and eventually heart failure. However, aortic stenosis does not directly affect right ventricular systolic pressure.
This question is an excerpt from Nurse Dive's nursing test bank - Ati Med Surg Proctored Exam 1 2024. Take the full exam now
Full Explanation
A. The aortic and mitral valves are the most commonly replaced valves: This statement is accurate. The aortic and mitral valves are indeed the most commonly replaced valves in cardiac valve replacement surgeries. Aortic valve replacement is commonly performed for conditions such as aortic stenosis or regurgitation, while mitral valve replacement is often indicated for mitral regurgitation or stenosis.
B. Mitral valve insufficiency occurs during the diastolic phase of the cardiac cycle: This statement is incorrect. Mitral valve insufficiency, also known as mitral regurgitation, occurs during the systolic phase of the cardiac cycle. It involves the backflow of blood from the left ventricle into the left atrium during ventricular systole, leading to volume overload of the left atrium and potentially causing symptoms such as dyspnea and fatigue.
C. Inadequate closure of the tricuspid valve causes overload in the left ventricle: This statement is incorrect. Inadequate closure of the tricuspid valve leads to regurgitation of blood from the right ventricle back into the right atrium during ventricular systole. This condition, known as tricuspid regurgitation, causes volume overload in the right atrium and ventricle, rather than overload in the left ventricle.
D. Aortic stenosis increases right ventricular systolic pressure and decreases afterload: This statement is partially correct. Aortic stenosis indeed increases left ventricular systolic pressure and decreases afterload, not right ventricular pressure. The increased afterload on the left ventricle can lead to left ventricular hypertrophy and eventually heart failure. However, aortic stenosis does not directly affect right ventricular systolic pressure.
Similar Questions
A nurse is assessing a client suspected of having cardiac tamponade. Which of the following findings indicates the presence of pulsus paradoxus?
A. A decrease in systolic blood pressure greater than 10 mm Hg during inspiration
A decrease in systolic blood pressure greater than 10 mm Hg during inspiration: Pulsus paradoxus is an exaggerated decrease in systolic blood pressure during inspiration. Normally, there is a slight decrease in systolic blood pressure during inspiration due to increased intrathoracic pressure and decreased venous return to the heart. However, in conditions such as cardiac tamponade or severe asthma exacerbations, the decrease in systolic blood pressure during inspiration is more pronounced (>10 mm Hg), indicating impaired cardiac output and decreased left ventricular filling during inspiration.
B. A decrease in heart rate greater than 10/min when lying down
A decrease in heart rate greater than 10/min when lying down: This finding is not indicative of pulsus paradoxus. Pulsus paradoxus primarily refers to changes in systolic blood pressure during inspiration rather than alterations in heart rate when lying down.
C. An increase in diastolic blood pressure greater than 10 mm Hg during inspiration
An increase in diastolic blood pressure greater than 10 mm Hg during inspiration: This finding is not indicative of pulsus paradoxus. Pulsus paradoxus is characterized by an exaggerated decrease in systolic blood pressure during inspiration, not changes in diastolic blood pressure.
D. An increase in heart rate greater than 20/min when standing
An increase in heart rate greater than 20/min when standing: This finding is not indicative of pulsus paradoxus. Pulsus paradoxus primarily refers to changes in systolic blood pressure during inspiration rather than alterations in heart rate when standing.
Full Explanation
A. A decrease in systolic blood pressure greater than 10 mm Hg during inspiration: Pulsus paradoxus is an exaggerated decrease in systolic blood pressure during inspiration. Normally, there is a slight decrease in systolic blood pressure during inspiration due to increased intrathoracic pressure and decreased venous return to the heart. However, in conditions such as cardiac tamponade or severe asthma exacerbations, the decrease in systolic blood pressure during inspiration is more pronounced (>10 mm Hg), indicating impaired cardiac output and decreased left ventricular filling during inspiration.
B. A decrease in heart rate greater than 10/min when lying down: This finding is not indicative of pulsus paradoxus. Pulsus paradoxus primarily refers to changes in systolic blood pressure during inspiration rather than alterations in heart rate when lying down.
C. An increase in diastolic blood pressure greater than 10 mm Hg during inspiration: This finding is not indicative of pulsus paradoxus. Pulsus paradoxus is characterized by an exaggerated decrease in systolic blood pressure during inspiration, not changes in diastolic blood pressure.
D. An increase in heart rate greater than 20/min when standing: This finding is not indicative of pulsus paradoxus. Pulsus paradoxus primarily refers to changes in systolic blood pressure during inspiration rather than alterations in heart rate when standing.
A nurse has received report on a client who has a basilar skull fracture. Which of the following findings should the nurse anticipate with this client?
A. Pooling of blood and edema around the eyes
Pooling of blood and edema around the eyes: Basilar skull fractures can lead to leakage of cerebrospinal fluid (CSF) into the surrounding tissues, resulting in periorbital ecchymosis, also known as raccoon eyes, due to pooling of blood and edema around the eyes. This finding is characteristic of basilar skull fractures and is caused by disruption of the meninges and subsequent CSF leakage into the soft tissues of the face.
B. Ability to recall how the injury occurred
Ability to recall how the injury occurred: Memory loss regarding the events surrounding the injury, known as post-traumatic amnesia, is common with basilar skull fractures. This amnesia occurs due to the impact of the injury on the brain and may involve retrograde amnesia (loss of memory of events leading up to the injury) and anterograde amnesia (loss of memory of events occurring after the injury).
C. Bruising over the mastoid process
Bruising over the mastoid process: Bruising over the mastoid process, known as Battle sign, is associated with basilar skull fractures. Battle sign results from blood accumulation (hematoma) in the mastoid region behind the ear due to fracture-related injury to the middle meningeal artery or other blood vessels. This finding typically develops 24-48 hours after the injury.
D. Chvostek’s sign
Chvostek’s sign: Chvostek's sign is a clinical manifestation of hypocalcemia, not basilar skull fractures. It is elicited by tapping the facial nerve (facial nerve spasm) and is indicative of neuromuscular irritability due to decreased calcium levels. Chvostek's sign is not directly related to basilar skull fractures.
Full Explanation
A. Pooling of blood and edema around the eyes: Basilar skull fractures can lead to leakage of cerebrospinal fluid (CSF) into the surrounding tissues, resulting in periorbital ecchymosis, also known as raccoon eyes, due to pooling of blood and edema around the eyes. This finding is characteristic of basilar skull fractures and is caused by disruption of the meninges and subsequent CSF leakage into the soft tissues of the face.
B. Ability to recall how the injury occurred: Memory loss regarding the events surrounding the injury, known as post-traumatic amnesia, is common with basilar skull fractures. This amnesia occurs due to the impact of the injury on the brain and may involve retrograde amnesia (loss of memory of events leading up to the injury) and anterograde amnesia (loss of memory of events occurring after the injury).
C. Bruising over the mastoid process: Bruising over the mastoid process, known as Battle sign, is associated with basilar skull fractures. Battle sign results from blood accumulation (hematoma) in the mastoid region behind the ear due to fracture-related injury to the middle meningeal artery or other blood vessels. This finding typically develops 24-48 hours after the injury.
D. Chvostek’s sign: Chvostek's sign is a clinical manifestation of hypocalcemia, not basilar skull fractures. It is elicited by tapping the facial nerve (facial nerve spasm) and is indicative of neuromuscular irritability due to decreased calcium levels. Chvostek's sign is not directly related to basilar skull fractures.
A nurse is providing care for a group of clients who have coronary artery disease who are all scheduled for coronary artery bypass grafts (CABG). Which of the following clients is at the highest risk for complications following the surgical procedure?
A. A client who has coronary artery disease (CAD) and Bell's palsy
A client who has coronary artery disease (CAD) and Bell's palsy: Bell's palsy, a condition characterized by sudden, temporary weakness or paralysis of the facial muscles, does not directly increase the risk of complications following CABG surgery. While Bell's palsy may affect facial muscle function, it typically does not impact respiratory function or cardiovascular stability during surgery.
B. A client who has coronary artery disease (CAD) and chronic diverticulitis
A client who has coronary artery disease (CAD) and chronic diverticulitis: Chronic diverticulitis, inflammation or infection of the diverticula in the colon, is not directly related to increased risk for complications following CABG surgery. While diverticulitis may require medical management and dietary modifications, it does not typically affect cardiovascular or respiratory function during surgery.
C. A client who has coronary artery disease (CAD) and chronic allergies
A client who has coronary artery disease (CAD) and chronic allergies: Chronic allergies, while they may cause respiratory symptoms such as nasal congestion or rhinitis, are not typically associated with increased risk for complications following CABG surgery. Allergies alone are unlikely to significantly impact cardiovascular stability or respiratory function during surgery compared to conditions such as COPD.
D. A client who has coronary artery disease (CAD) and chronic obstructive pulmonary disease (COPD)
A client who has coronary artery disease (CAD) and chronic obstructive pulmonary disease (COPD): A client with CAD and COPD is at the highest risk for complications following coronary artery bypass graft (CABG) surgery. COPD is a chronic respiratory condition characterized by airflow limitation and increased airway resistance, often accompanied by emphysema and chronic bronchitis. These respiratory impairments can significantly impact the client's ability to tolerate anesthesia, mechanical ventilation, and postoperative respiratory function. COPD increases the risk of complications such as atelectasis, pneumonia, exacerbation of COPD, and respiratory failure following CABG surgery.
Full Explanation
A. A client who has coronary artery disease (CAD) and Bell's palsy: Bell's palsy, a condition characterized by sudden, temporary weakness or paralysis of the facial muscles, does not directly increase the risk of complications following CABG surgery. While Bell's palsy may affect facial muscle function, it typically does not impact respiratory function or cardiovascular stability during surgery.
B. A client who has coronary artery disease (CAD) and chronic diverticulitis: Chronic diverticulitis, inflammation or infection of the diverticula in the colon, is not directly related to increased risk for complications following CABG surgery. While diverticulitis may require medical management and dietary modifications, it does not typically affect cardiovascular or respiratory function during surgery.
C. A client who has coronary artery disease (CAD) and chronic allergies: Chronic allergies, while they may cause respiratory symptoms such as nasal congestion or rhinitis, are not typically associated with increased risk for complications following CABG surgery. Allergies alone are unlikely to significantly impact cardiovascular stability or respiratory function during surgery compared to conditions such as COPD.
D. A client who has coronary artery disease (CAD) and chronic obstructive pulmonary disease (COPD): A client with CAD and COPD is at the highest risk for complications following coronary artery bypass graft (CABG) surgery. COPD is a chronic respiratory condition characterized by airflow limitation and increased airway resistance, often accompanied by emphysema and chronic bronchitis. These respiratory impairments can significantly impact the client's ability to tolerate anesthesia, mechanical ventilation, and postoperative respiratory function. COPD increases the risk of complications such as atelectasis, pneumonia, exacerbation of COPD, and respiratory failure following CABG surgery.