Nokea
The client asks about side effects of taking digoxin. How does the nurse respond?
- A. Anorexia can be a side effect of digoxin.
- B. Tachycardia can be a side effect of digoxin.
- C. Constipation can be a side effect of digoxin.
- D. Urinary retention can be a side effect of digoxin.
Correct Answer: A
Rationale: The correct answer is A: Anorexia can be a side effect of digoxin. Digoxin is known to cause anorexia due to its impact on the gastrointestinal system. It can lead to nausea, vomiting, and loss of appetite, resulting in anorexia. Tachycardia (choice B) is not a common side effect of digoxin, as it is actually used to treat certain types of arrhythmias. Constipation (choice C) and urinary retention (choice D) are also not typically associated with digoxin use. In summary, anorexia is a known side effect of digoxin, while tachycardia, constipation, and urinary retention are not commonly linked to this medication.
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What is a surgical procedure where a blood vessel is grafted to bypass a blocked coronary artery, improving blood flow to the heart muscle?
- A. Coronary artery bypass graft (CABG)
- B. Valve replacement
- C. Angioplasty
- D. Endarterectomy
Correct Answer: A
Rationale: The correct answer is A: Coronary artery bypass graft (CABG). This surgical procedure involves grafting a blood vessel to bypass a blocked coronary artery, improving blood flow to the heart muscle. It is used to treat severe coronary artery disease. Valve replacement (B) is a surgery to replace heart valves, not to bypass blocked arteries. Angioplasty (C) involves inserting a balloon to widen a narrowed artery, not bypassing it. Endarterectomy (D) is a procedure to remove plaque from an artery, not bypassing a blocked coronary artery.
This is a test that measures the oxygen saturation level in the blood, often used to assess respiratory function.
- A. Pulse oximetry
- B. Spirometry
- C. Arterial blood gas (ABG)
- D. Lung function test
Correct Answer: A
Rationale: The correct answer is A: Pulse oximetry. Pulse oximetry measures oxygen saturation levels in the blood by using a non-invasive method to determine the percentage of hemoglobin carrying oxygen. This test is commonly used to assess respiratory function quickly and efficiently.
Summary of incorrect options:
B: Spirometry measures lung function by assessing airflow and volume.
C: ABG measures oxygen and carbon dioxide levels in the blood.
D: Lung function test is a broad term that can include various tests, such as spirometry and imaging studies.
If Mr. Smith is admitted with pericarditis with effusion and shows dyspnea, tachycardia, distended neck veins, and arterial hypotension, your evaluation of the situation would be that
- A. These are signs of cardiac tamponade
- B. These signs are to be expected
- C. He needs to be placed flat in bed to relieve the problem
- D. He has overexerted himself and needs to rest
Correct Answer: A
Rationale: Cardiac tamponade compromises cardiac function.
Which heart chamber receives oxygenated blood from the four pulmonary veins and serves as a reservoir during ventricular systole?
- A. Right atrium
- B. Left atrium
- C. Right ventricle
- D. Left ventricle
Correct Answer: B
Rationale: The correct answer is B: Left atrium. The left atrium receives oxygenated blood from the pulmonary veins, acting as a reservoir during ventricular systole. This blood is then pumped into the left ventricle for distribution to the body. The right atrium receives deoxygenated blood from the body via the vena cavae. The right ventricle pumps this blood to the lungs for oxygenation. The left ventricle is responsible for pumping oxygenated blood to the rest of the body. Therefore, the left atrium is the correct choice based on its role in receiving oxygenated blood from the pulmonary veins.
From where do these originate, behind the cusps of the aortic valve, in an area known as Valsalva's sinus?
- A. Pulmonary valve
- B. Aortic valve
- C. Tricuspid valve
- D. Mitral valve
Correct Answer: B
Rationale: Rationale: The correct answer is B - Aortic valve. This is because Valsalva's sinus is located behind the cusps of the aortic valve. The sinuses of Valsalva are pouch-like dilations found at the root of the aorta, just above the aortic valve. These sinuses are important in preventing backflow of blood into the heart during diastole. The other choices, A, C, and D, are incorrect because they do not originate from Valsalva's sinus. The pulmonary valve is located in the pulmonary artery, the tricuspid valve is between the right atrium and right ventricle, and the mitral valve is between the left atrium and left ventricle.