Correct Answer: B

Rationale: The correct answer is B: Respiratory alkalosis. In this scenario, the client is hyperventilating, leading to excessive elimination of carbon dioxide. As a result, the PaCO2 decreases, causing a decrease in hydrogen ion concentration and an increase in pH, resulting in respiratory alkalosis. Choice A, Respiratory acidosis, is incorrect because the ABG results show a low PaCO2, not an elevated one. Choices C and D, Metabolic acidosis and Metabolic alkalosis, do not align with the ABG results provided, which point towards a respiratory, not metabolic, imbalance.

Correct Answer: D

Rationale: The priority action is to verify the prescription with the provider. Verifying the prescription ensures patient safety by preventing fluid volume overload and dysrhythmias, which can result from infusing potassium too rapidly. Teaching the client about IV extravasation, evaluating IV patency, and consulting with the pharmacist are important but should come after verifying the prescription to ensure the ordered treatment is appropriate and safe for the client's condition.

Correct Answer: C

Rationale: The correct answer is C because the client should have a quick-acting source of 15 g of carbohydrates to treat hypoglycemic episodes, such as 4 oz of regular soda. Choice A is incorrect because while exercise can help manage blood sugar levels, it can also increase the risk of hypoglycemia if not properly managed. Choice B is incorrect as skipping insulin when not eating can lead to hyperglycemia, not prevent hypoglycemia. Choice D is incorrect because certain oral diabetic medications can indeed cause hypoglycemia, not just insulin.

Correct Answer: A

Rationale: A distended, board-like abdomen is a concerning sign indicating the possibility of a ruptured appendix and peritonitis, which are medical emergencies. Reporting this finding immediately is crucial for prompt intervention. Choice B, an elevated WBC count, could indicate infection but is not as urgent as the risk of a ruptured appendix. Choice C, rebound tenderness over McBurney's point, is a classic sign of appendicitis but does not indicate an immediate threat like a possible rupture. Choice D, a slightly elevated temperature, is a nonspecific finding and not as critical as the risk of peritonitis associated with a distended, board-like abdomen.

Correct Answer: A

Rationale: The correct answer is A. The nurse should report these vital signs to the provider immediately as they indicate increased temperature, tachycardia, and tachypnea, which are signs of possible infection or systemic inflammatory response. This could exacerbate the client's unstable angina and needs prompt evaluation. Choices B, C, and D are not as urgent as the vital signs in option A and do not directly indicate a worsening condition in the context of unstable angina.