Correct Answer: A

Rationale: The correct answer is A: Risk for impaired skin integrity. Myocardial infarction, hypertension, and progressive systemic sclerosis can lead to impaired circulation and skin breakdown. Clients with these conditions are at risk for pressure ulcers due to decreased blood flow and compromised skin integrity. The other options, B: Imbalanced nutrition, C: Constipation, and D: Ineffective thermoregulation, do not directly relate to the client's conditions or the potential complications associated with them. Therefore, the most appropriate nursing diagnosis for this client would be A: Risk for impaired skin integrity.

Correct Answer: C

Rationale: The correct answer is C: 125 mL/h. To calculate the infusion rate per hour, we divide the total volume (1000 mL) by the total time in hours (8 hours). 1000 mL / 8 hours = 125 mL/h. This ensures a consistent and accurate infusion rate throughout the 8-hour period. Choice A (80 mL/h) is incorrect because it underestimates the infusion rate. Choice B (100 mL/h) is incorrect because it does not divide the total volume by the total time correctly. Choice D (150 mL/h) is incorrect because it overestimates the infusion rate.

Correct Answer: C

Rationale: The correct answer is C because in myasthenia gravis, which is characterized by muscle weakness and fatigue, the administration of edrophonium will temporarily improve muscle strength due to increased availability of acetylcholine at the neuromuscular junction. This improvement should be noted within 30 to 60 seconds after the administration of the medication. Choice A is incorrect because joint pain is not a typical response to edrophonium in the context of myasthenia gravis. Choice B is incorrect because feelings of faintness, dizziness, hypotension, and flushing are more indicative of a cholinergic crisis, which occurs when too much edrophonium is administered. Choice D is incorrect because an increase in muscle strength post-edrophonium administration would not be expected in a client with myasthenia gravis.

Correct Answer: A

Rationale: In the evaluation phase of the nursing process, the nurse sets priorities for patient care to determine the effectiveness of nursing interventions. This involves comparing achieved outcomes with established goals. Choices B and D are related to evaluation as they involve determining whether outcomes or standards are met and documenting results of goal achievement, respectively. However, choice C, ambulating the patient, is an intervention that would typically occur in the implementation phase, not the evaluation phase. Therefore, the correct answer is A because setting priorities for patient care is a key component of the evaluation phase.

Correct Answer: A

Rationale: Correct Answer: A Rationale: 1. Dressing changes twice a day help maintain a clean wound environment, reducing the risk of infection. 2. Regular dressing changes promote proper wound healing by facilitating moisture balance and removal of dead tissue. 3. It is a direct intervention that addresses the patient's poor wound healing. 4. Teaching the patient about signs of infection (B) is important but does not directly address the wound healing process. 5. Instructing the family on dressing changes (C) is helpful but should not substitute direct patient care. 6. Refocusing the patient from body image changes (D) is not directly related to improving wound healing.