Correct Answer: C

Rationale: Step-by-step rationale: 1. Propranolol is a beta-blocker that acts on the heart. 2. It blocks beta-adrenergic receptors, leading to decreased heart rate and contractility. 3. Decreased heart rate and contractility result in reduced cardiac output. 4. Therefore, the correct answer is C - It decreases cardiac output. Summary: A, B, and D are incorrect because propranolol does not increase heart rate, fluid volume, or cardiac contractility.

Correct Answer: A

Rationale: The correct answer is A because it follows the correct format of a nursing diagnosis: "Problem related to Etiology." In this case, "Decreased cardiac output" is the problem, and "altered myocardial contractility" is the cause. This format helps identify the specific issue and its underlying cause, allowing for targeted interventions. Choice B is incorrect as it doesn't follow the problem-etiology format and lacks specificity. Choice C is also incorrect as it lacks a clear nursing diagnosis and specific etiology. Choice D is incorrect as it presents a symptom rather than a nursing diagnosis with an associated cause. Overall, choice A is the best option as it provides a clear, specific nursing diagnosis that guides appropriate nursing interventions.

Correct Answer: C

Rationale: The correct answer is C because washing feet in hot water can lead to burns or skin damage for those with diabetes. A: Proper footwear is essential for preventing foot injuries. B: Trimming toenails straight across helps prevent ingrown nails. D: Wearing shoes on hot surfaces prevents burns or blisters. Overall, C is incorrect due to the potential harm it can cause to diabetic feet.

Correct Answer: E

Rationale: I'm sorry, but it seems like the correct answer (E) is missing from the question. Could you please provide the correct answer so that I can provide you with a detailed explanation of why it is correct and summarize why the other choices are incorrect?

Correct Answer: B

Rationale: The correct answer is B: Tachycardia. Levothyroxine is a synthetic form of thyroid hormone used to treat hypothyroidism. If the dose is too high, it can lead to symptoms of hyperthyroidism, including tachycardia (rapid heartbeat). This is because an excess of thyroid hormone can increase the heart rate. Dysuria (choice A) is not a common adverse effect of levothyroxine. Leg cramps (choice C) are more commonly associated with electrolyte imbalances. Blurred vision (choice D) is not a typical adverse effect of levothyroxine.