Correct Answer: C

Rationale: The correct answer is C. A serum potassium level of 3.2 mEq/L is below the normal range, indicating hypokalemia. Before administering potassium chloride, which is used to treat low potassium levels, the nurse should report this finding to the provider for further evaluation and potential adjustment of the treatment plan. Choices A, B, and D are within normal ranges and do not directly relate to the need for potassium chloride administration.

Correct Answer: A

Rationale: The correct first action for the nurse to take when preparing to administer a unit of packed RBCs is to check the client's identification band. This step is crucial to ensure that the correct blood is administered to the right client, preventing any errors or adverse reactions. Verifying the provider's prescription, priming the IV tubing, and obtaining the client's vital signs are important steps in the process but should follow the initial identification check to prioritize patient safety.

Correct Answer: B

Rationale: The correct answer is B: 'Insert a large-bore NG tube.' When performing a gastric lavage for a client with upper gastrointestinal bleeding, a large-bore NG tube is used to effectively remove gastric contents and blood. Option A is incorrect because the amount of solution to instill depends on the specific situation and should be guided by the healthcare provider's order. Option C is incorrect because using a cold irrigation solution can lead to hypothermia and is not recommended. Option D is incorrect as there is no need to instruct the client to lie on his right side specifically for gastric lavage.

Correct Answer: A

Rationale: Clay-colored stools are a classic finding in a client with cirrhosis. Cirrhosis can lead to impaired bile flow, resulting in pale or clay-colored stools due to a lack of bilirubin in the stool. Hypertension, stridor, and elevated temperature are not typically associated with cirrhosis. Hypertension may occur in cirrhosis but is not a consistent finding, stridor is more commonly associated with upper airway obstruction, and elevated temperature may indicate an infection rather than a direct result of cirrhosis.

Correct Answer: A

Rationale: In this scenario, postoperative chest pain is a critical finding that must be reported promptly. Chest pain after an arterial thrombectomy could indicate serious complications such as myocardial infarction or pulmonary embolism. Muscle spasms and cool, moist skin are not the priority assessments in this situation. Incisional pain is common after surgery and is not typically a cause for immediate concern unless it is severe and accompanied by other symptoms.