Correct Answer: B

Rationale: The correct answer is B. Monitoring the client's compliance with NPO status is the priority assessment. Ensuring the client remains NPO (nothing by mouth) is crucial to reduce the risk of aspiration during surgery. Assessing the client's understanding of the procedure is important but not the priority at this moment. Checking vital signs is also essential but ensuring NPO status takes precedence for patient safety. Ensuring the client's consent form is signed is necessary but not the priority assessment compared to maintaining NPO status.

Correct Answer: C

Rationale: When a client on heparin reports tarry stools, it can be indicative of gastrointestinal bleeding. The correct action for the nurse is to monitor the stools for blood and review the Partial Thromboplastin Time (PTT) results. This is essential to detect any potential bleeding complications associated with heparin therapy. Option A is incorrect because warfarin is not the immediate intervention for tarry stools in a client on heparin. Option B is irrelevant to the situation described. Option D is incorrect as Vitamin K is the antidote for warfarin, not heparin.

Correct Answer: B

Rationale: When a client on digoxin reports nausea, it can be a sign of digoxin toxicity. The priority action for the nurse is to assess the client's digoxin level immediately. This assessment will help determine if the nausea is related to digoxin toxicity, requiring a dosage adjustment. Administering an anti-nausea medication (Choice A) does not address the underlying issue of potential digoxin toxicity. Assessing the client's apical pulse (Choice C) is important in general digoxin monitoring but not the first action when nausea is reported. Instructing the client to reduce fluid intake (Choice D) is not the initial response to nausea in a client taking digoxin.

Correct Answer: A

Rationale: The correct answer is to administer bronchodilators as prescribed. During an acute asthma attack, the priority is to open the airways quickly to help the client breathe more easily. Oxygen may be needed but bronchodilators take precedence as they directly target bronchoconstriction. Chest physiotherapy is not indicated in the acute phase of asthma and may exacerbate the condition. While emotional support is important, addressing the airway obstruction takes precedence in this situation.

Correct Answer: C

Rationale: An elevated CVP and sudden weight gain indicate fluid overload, which can strain the heart. Auscultating for an irregular heart rate is crucial as electrolyte imbalances and fluid shifts after burns can lead to cardiac complications. Monitoring the heart rate is a priority to detect any cardiac distress early. While reviewing urine output and administering diuretics are important interventions, they should come after ensuring the client's cardiac status is stable. Increasing oral fluid intake may exacerbate the fluid overload, making it an inappropriate intervention in this scenario.