Nursing Elites

1. Which chronic condition is characterized by abnormally thickened heart muscle, making it harder for the heart to pump blood efficiently?

• A. Hypertrophic cardiomyopathy
• B. Dilated cardiomyopathy
• C. Restrictive cardiomyopathy
• D. Ventricular hypertrophy

Correct answer: A

Rationale: Hypertrophic cardiomyopathy is the correct answer. In this condition, the heart muscle becomes abnormally thickened, leading to difficulties in pumping blood efficiently. Dilated cardiomyopathy (choice B) involves the enlargement of the heart chambers, not thickening of the heart muscle. Restrictive cardiomyopathy (choice C) is characterized by stiffening of the heart muscle, impairing its ability to fill properly. Ventricular hypertrophy (choice D) refers to the thickening of the heart's ventricle walls, which can result from various conditions, not solely hypertrophic cardiomyopathy.

2. The client is on enoxaparin (Lovenox) for DVT prophylaxis. What is the most important lab value to monitor?

• A. Platelet count
• B. PT/INR
• C. aPTT
• D. Hemoglobin

Correct answer: A

Rationale: The correct answer is A: Platelet count. When a client is on enoxaparin (Lovenox), monitoring the platelet count is crucial as enoxaparin can lead to a rare but serious side effect known as heparin-induced thrombocytopenia (HIT), causing a decrease in platelet count. Monitoring the platelet count helps detect this adverse reaction early. Choices B, C, and D are incorrect because enoxaparin therapy does not directly affect PT/INR, aPTT, or hemoglobin levels.

3. Which heart chamber ejects blood into the lungs via the pulmonary artery?

• A. Right atrium
• B. Left atrium
• C. Right ventricle
• D. Left ventricle

Correct answer: C

Rationale: The correct answer is C, the right ventricle. The right ventricle is responsible for pumping deoxygenated blood into the lungs through the pulmonary artery for oxygenation. Choices A, B, and D are incorrect because the right atrium receives deoxygenated blood from the body, the left atrium receives oxygenated blood from the lungs, and the left ventricle pumps oxygenated blood to the body, respectively.

4. What is the procedure where a catheter is used to open a blocked or narrowed coronary artery, often involving the placement of a stent?

• A. Angioplasty
• B. Valve replacement
• C. Stent placement
• D. Coronary artery bypass graft (CABG)

Correct answer: A

Rationale: The correct answer is Angioplasty. Angioplasty is a procedure where a catheter is used to open a blocked or narrowed coronary artery, often involving the placement of a stent to keep the artery open and improve blood flow to the heart. Choice B, Valve replacement, is incorrect as it involves replacing a heart valve, not opening a blocked artery. Choice C, Stent placement, is similar to angioplasty but not as specific, as it does not involve the catheter-based procedure. Choice D, Coronary artery bypass graft (CABG), is a different procedure where blocked arteries are bypassed using a blood vessel from another part of the body.

5. What is a condition characterized by episodes of severe, acute shortness of breath, often occurring at night?

• A. Paroxysmal nocturnal dyspnea
• B. Sleep apnea
• C. Orthopnea
• D. Dyspnea

Correct answer: A

Rationale: Paroxysmal nocturnal dyspnea is the correct answer. It is characterized by sudden episodes of severe shortness of breath during sleep, often waking the individual. Choice B, Sleep apnea, involves pauses in breathing during sleep but does not usually present with acute shortness of breath. Choice C, Orthopnea, refers to shortness of breath that occurs when lying flat and is relieved by sitting up. Choice D, Dyspnea, is a general term for difficult or labored breathing and does not specifically describe acute episodes at night.

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