Correct Answer: A

Rationale: Nervousness is the most common symptom of hypoglycemia. It is often accompanied by other signs such as weakness, perspiration, confusion, and palpitations. Anorexia (lack of appetite) is not a typical symptom of hypoglycemia; it is more commonly associated with hyperglycemia. Kussmaul's respirations are a deep and labored breathing pattern seen in diabetic ketoacidosis, not hypoglycemia. Bradycardia (slow heart rate) is not a typical symptom of hypoglycemia; tachycardia (fast heart rate) is more commonly associated with hypoglycemia due to the release of catecholamines in response to low blood sugar.

Correct Answer: A

Rationale: The correct answer is A: Elevated creatinine levels. Creatinine is a waste product that is normally filtered by the kidneys. Elevated creatinine levels indicate impaired kidney function, which is commonly seen in renal failure. Choice B, low potassium levels, is not typically associated with renal failure. In fact, renal failure is more likely to cause high potassium levels due to the kidneys' inability to excrete potassium effectively. Choice C, low calcium levels, are not directly indicative of renal failure. Renal failure can lead to disturbances in calcium levels, but low calcium levels alone are not a specific marker for renal failure. Choice D, high sodium levels, are also not typically associated with renal failure. In renal failure, there may be disturbances in sodium levels, but high sodium levels alone are not a direct indicator of renal failure.

Correct Answer: A

Rationale: A Stage 2 pressure ulcer typically presents as a shallow open ulcer with a red-pink wound bed. This appearance is characteristic of a Stage 2 pressure ulcer where there is partial thickness skin loss involving the epidermis and possibly the dermis. Choice B, a deep pocket of infection and necrotic tissues, is more indicative of a Stage 3 or Stage 4 pressure ulcer where the ulcer extends into deeper tissue layers. Choice C, an area of erythema that is painful to touch, is more commonly seen in early-stage pressure ulcers such as Stage 1. Choice D, visible subcutaneous tissue with sloughing, is characteristic of a more severe stage of pressure ulcer beyond Stage 2.

Correct Answer: B

Rationale: Fowler's position is the best position for a patient experiencing dyspnea. This position involves sitting the patient upright with the head of the bed elevated between 45-60 degrees. Fowler's position helps improve breathing in patients with dyspnea by promoting lung expansion, aiding in better oxygenation, and reducing the work of breathing. The supine position (Choice A) may worsen dyspnea by limiting lung expansion. The Trendelenburg position (Choice C) with the feet elevated and the head down is not recommended for dyspnea as it can increase pressure on the chest and compromise breathing. The lateral recumbent position (Choice D) is not ideal for dyspnea as it does not provide optimal lung expansion and may not alleviate breathing difficulty.

Correct Answer: B

Rationale: In this scenario, the priority for the nurse to emphasize in the discharge teaching plan is the 'Guidelines for oxygen use.' As the client with emphysema is being discharged with oxygen therapy, it is crucial for the nurse to ensure that the client understands how to use oxygen properly to prevent complications and promote effective management of the condition. While weight loss, conserving energy, and smoking cessation are important aspects of care for this client, in this specific case, ensuring the safe and appropriate use of supplemental oxygen takes precedence to optimize the client's respiratory function and overall well-being.