What condition is characterized by the inflammation of the heart's outer lining, often causing chest pain and other symptoms?
- A. Pericarditis
- B. Endocarditis
- C. Myocarditis
- D. Valvular heart disease
Correct Answer: A
Rationale: The correct answer is A: Pericarditis. Pericarditis is the inflammation of the heart's outer lining, causing chest pain. The pericardium surrounds and protects the heart. Other choices are incorrect:
B: Endocarditis is the inflammation of the inner lining of the heart.
C: Myocarditis is the inflammation of the heart muscle itself.
D: Valvular heart disease is a condition affecting the heart valves, not the outer lining.
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What is the term for a blood clot blocking an artery in the lungs, leading to symptoms like shortness of breath and chest pain?
- A. Pulmonary embolism
- B. Deep vein thrombosis (DVT)
- C. Myocardial infarction
- D. Pneumothorax
Correct Answer: A
Rationale: The correct answer is A: Pulmonary embolism. A pulmonary embolism occurs when a blood clot blocks an artery in the lungs, causing symptoms like shortness of breath and chest pain. Deep vein thrombosis (B) is a blood clot in a deep vein, not in the lungs. Myocardial infarction (C) is a heart attack due to blocked blood flow to the heart muscle. Pneumothorax (D) is a collapsed lung, not related to a blood clot.
A client on a beta blocker has a heart rate of 52 bpm. What is the nurse's priority action?
- A. Hold the beta blocker and notify the healthcare provider.
- B. Administer the beta blocker as ordered.
- C. Increase the dose of the beta blocker.
- D. Continue to monitor the client and reassess in 30 minutes.
Correct Answer: A
Rationale: The correct answer is A: Hold the beta blocker and notify the healthcare provider. With a heart rate of 52 bpm, the client may be experiencing bradycardia, a potential side effect of beta blockers. Holding the medication and informing the healthcare provider is crucial to prevent further complications. Administering the beta blocker (B) can exacerbate bradycardia. Increasing the dose (C) can further decrease the heart rate. Continuing to monitor (D) without intervention can lead to worsening of the bradycardia.
What is the condition where the walls of the heart's ventricles become thickened, reducing the heart's ability to pump blood effectively?
- A. Ventricular hypertrophy
- B. Atrial fibrillation
- C. Restrictive cardiomyopathy
- D. Cardiomyopathy
Correct Answer: A
Rationale: The correct answer is A: Ventricular hypertrophy. Ventricular hypertrophy refers to the thickening of the walls of the heart's ventricles, which can reduce the heart's ability to pump blood effectively. This condition is often a response to conditions like high blood pressure or heart valve disease, leading to increased workload on the heart muscle. Atrial fibrillation (B) is an irregular heart rhythm, not directly related to ventricular thickening. Restrictive cardiomyopathy (C) involves stiffening of the heart muscle, affecting the heart's ability to fill properly. Cardiomyopathy (D) is a general term for diseases of the heart muscle, not specifically describing ventricular thickening.
A patient uses a mixed β-adrenergic blocking drug for treatment of migraine headaches. What effect might this drug have on BP and why?
- A. Decreased BP due to reduced cardiac output
- B. Increased BP due to unopposed α-adrenergic activity
- C. No effect on BP
- D. Decreased BP due to vasodilation
Correct Answer: A
Rationale: β-blockers reduce heart rate and contractility, lowering BP.
What is a condition where the arteries supplying blood to the legs and feet become narrowed or blocked, causing pain and difficulty walking?
- A. Peripheral artery disease
- B. Atherosclerosis
- C. Varicose veins
- D. Raynaud's disease
Correct Answer: A
Rationale: The correct answer is A: Peripheral artery disease (PAD). PAD is characterized by narrowed or blocked arteries in the legs and feet, resulting in reduced blood flow, causing pain and difficulty walking. This condition is specifically related to arterial issues, unlike varicose veins (C) which involve veins, atherosclerosis (B) which is a broader term for arterial plaque buildup, and Raynaud's disease (D) which is characterized by episodic vasospasm affecting blood flow to extremities. Therefore, PAD is the most accurate choice given the symptoms described in the question.