Correct Answer: C

Rationale: A potassium level of 6.5 mEq/L is critically high and can lead to life-threatening cardiac dysrhythmias, requiring immediate intervention. Hyperkalemia is a common complication in clients with ESRD due to the kidneys' inability to excrete potassium effectively. High potassium levels can result in serious cardiac consequences such as arrhythmias, cardiac arrest, and death. Prompt action is necessary to prevent these severe complications.

Correct Answer: D

Rationale: Placing the client in a high Fowler's position is the best action in this situation as it helps to maximize lung expansion, improve breathing, and decrease the work of breathing. This position allows for better chest expansion, improving oxygenation and ventilation for the client in respiratory distress.

Correct Answer: B

Rationale: Checking the surgical site for bleeding is crucial in this situation as it helps determine if the drop in blood pressure is due to hemorrhage, a potential postoperative complication. Identifying and addressing bleeding promptly is essential to prevent further complications and stabilize the client's condition.

Correct Answer: A

Rationale: Client-centered care focuses on individualizing care to meet the client's unique needs, preferences, and values. Assessing for cultural influences affecting healthcare allows the healthcare professional to provide culturally sensitive and competent care, respecting the client's beliefs and practices. It promotes effective communication, understanding, and collaboration, essential components of client-centered care.

Correct Answer: C

Rationale: The Joint Commission's Core Measures set for MI includes percutaneous coronary intervention within 90 minutes of the diagnosis of myocardial infarction. Since the client presented at 1500 (3:00 PM), the percutaneous coronary intervention should be performed no later than 1630 (4:30 PM), to adhere to the 90-minute timeline for optimal outcomes.