Correct Answer: A

Rationale: After an amputation, monitoring the pulse closest to the stump is crucial in evaluating tissue perfusion and the overall health of the limb. Swelling and changes in perfusion can indicate complications such as blood clots or infection. Assessing the proximal pulse helps the nurse ensure adequate blood flow to the remaining limb, thereby preventing further complications. Choices B, C, and D are less directly related to monitoring tissue perfusion in this scenario and are more focused on wound healing and stump care.

Correct Answer: C

Rationale: The correct answer is C: 'Monitor for signs of yellowing skin or eyes.' Tetracycline can cause hepatotoxicity, leading to jaundice which may present as yellowing of the skin or eyes. This is a serious side effect that the nurse should emphasize to the client. Choice A is incorrect because tetracycline should generally be taken on an empty stomach, not with food or milk. Choice B is also incorrect as tetracycline can cause photosensitivity, but it is not directly related to yellowing skin or eyes. Choice D is incorrect because tetracycline can cause yellow-brown discoloration of the teeth, but this is usually seen in children under 8 years of age, not a common concern for adult clients.

Correct Answer: B

Rationale: The correct advice for a client experiencing dizziness when standing up quickly is to change positions slowly to prevent dizziness. This symptom is suggestive of postural hypotension, where a sudden change in position can lead to a drop in blood pressure, causing dizziness. Encouraging the client to drink more fluids (Choice A) may be beneficial for other conditions but is not directly related to the prevention of dizziness in this case. Reporting the symptom to the healthcare provider immediately (Choice C) is important if the dizziness is persistent or severe, but the immediate action to prevent it is to change positions slowly. Limiting physical activity (Choice D) may not necessarily address the underlying cause of dizziness in this context.

Correct Answer: C

Rationale: The correct action for a client recovering from a stroke demonstrating slurred speech is to encourage the client to use communication aids, such as writing. This intervention can help the client effectively communicate while working on regaining speech abilities. Consulting the healthcare provider to order speech therapy (choice A) is a valid option, but immediate encouragement of using communication aids is beneficial. Administering aspirin (choice B) without healthcare provider orders is not recommended. Encouraging the client to eat soft foods (choice D) is important for preventing aspiration but doesn't directly address the communication issue.

Correct Answer: B

Rationale: The activated partial thromboplastin time (aPTT) is the most accurate measure of heparin's therapeutic effect. Heparin increases the time it takes for blood to clot, and the aPTT helps determine whether the dose is within the desired range for anticoagulation therapy. Monitoring the INR, hemoglobin, or platelet count is not specific to assessing therapeutic heparin levels and may not reflect the anticoagulant effect of heparin.