Nursing Elites

1. An older adult client is admitted with pneumonia and prescribed penicillin G potassium. Which factor increases the risk of an adverse reaction?

• A. Sputum culture showing Streptococcus pneumoniae.
• B. Previous treatment with penicillin.
• C. Daily use of spironolactone for hypertension.
• D. Documented allergy to sulfa drugs.

Correct answer: C

Rationale: The correct answer is C. Daily use of spironolactone for hypertension can increase the risk of hyperkalemia and interact with penicillin, leading to adverse reactions. Choice A is incorrect because the sputum culture showing Streptococcus pneumoniae is an expected finding in a patient with pneumonia and does not increase the risk of an adverse reaction to penicillin. Choice B is incorrect as previous treatment with penicillin does not necessarily increase the risk of an adverse reaction to penicillin if there was no history of allergic reactions. Choice D is also incorrect as a documented allergy to sulfa drugs does not directly increase the risk of an adverse reaction to penicillin.

2. A client with atrial fibrillation is prescribed warfarin. Which instruction should the nurse include in the teaching?

• A. Maintain a consistent intake of leafy green vegetables
• B. Use an electric razor when shaving
• C. Monitor blood pressure daily
• D. Avoid eating bananas and oranges

Correct answer: B

Rationale: Clients on warfarin are at increased risk of bleeding due to its anticoagulant effects. Using an electric razor reduces the risk of cuts and bleeding, which is an important safety precaution. While leafy greens should not be avoided, their intake should be consistent to maintain a stable level of vitamin K in the body. Monitoring blood pressure daily is important for other conditions but not directly related to warfarin therapy. Avoiding bananas and oranges is not a standard instruction for clients on warfarin.

3. What pathophysiological events occur sequentially in the development of atherosclerosis?

• A. Foam cells release growth factors.
• B. Smooth muscle grows over fatty streaks creating fibrous plaques.
• C. Macrophages consume low-density lipoprotein (LDL) and create foam cells.
• D. Arterial endothelium injury causes inflammation.

Correct answer: D

Rationale: The correct sequence of pathophysiological events in the development of atherosclerosis starts with arterial endothelium injury causing inflammation. This inflammation triggers the formation of foam cells by macrophages consuming low-density lipoprotein (LDL). Subsequently, smooth muscle grows over fatty streaks, creating fibrous plaques. Therefore, option D is the correct answer. Choices A, B, and C are incorrect because they do not reflect the accurate chronological order of events in the pathogenesis of atherosclerosis.

4. The client is being taught about precautions with Coumadin therapy. The client should be instructed to avoid which over-the-counter medication?

• A. Non-steroidal anti-inflammatory drugs
• B. Cough medicines containing guaifenesin
• C. Histamine blockers
• D. Laxatives containing magnesium salts

Correct answer: A

Rationale: The correct answer is A: Non-steroidal anti-inflammatory drugs (NSAIDs). NSAIDs can increase the risk of bleeding in clients taking Coumadin, which is an anticoagulant medication. Avoiding NSAIDs helps prevent potentially dangerous interactions with Coumadin. Choices B, C, and D are incorrect. Cough medicines with guaifenesin, histamine blockers, and laxatives containing magnesium salts do not typically have significant interactions with Coumadin therapy. Therefore, they are not the over-the-counter medications that the client needs to avoid while on Coumadin.

5. A male client with hypertension, who received new antihypertensive prescriptions at his last visit returns to the clinic two weeks later to evaluate his blood pressure (BP). His BP is 158/106, and he admits that he has not been taking the prescribed medication because the drugs make him feel bad. In explaining the need for hypertension control, the nurse should stress that an elevated BP places the client at risk for which pathophysiological condition?

• A. Stroke secondary to hemorrhage
• B. Myocardial infarction
• C. Heart failure
• D. Renal failure

Correct answer: A

Rationale: Stroke is a major complication of uncontrolled hypertension. Elevated BP, especially at levels like 158/106, can cause damage to blood vessels in the brain, leading to a hemorrhagic stroke. Controlling BP is essential to prevent such life-threatening events. Myocardial infarction (choice B) is more commonly associated with coronary artery disease, while heart failure (choice C) and renal failure (choice D) can be complications of uncontrolled hypertension but are not directly related to the elevated BP leading to a hemorrhagic stroke.

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