Nursing Elites

1. What ECG changes are expected in hypokalemia?

• A. Flattened T waves on ECG
• B. Prominent U waves on ECG
• C. Widened QRS complexes on ECG
• D. ST elevation on ECG

Correct answer: A

Rationale: In hypokalemia, flattened T waves are a common ECG finding due to the decreased extracellular potassium affecting repolarization. Prominent U waves are typically seen in hypokalemia as well, but flattened T waves are the more specific and early ECG change. Widened QRS complexes are associated with hyperkalemia, not hypokalemia. ST elevation is often seen in conditions like myocardial infarction, pericarditis, or early repolarization syndrome, not specifically in hypokalemia.

2. What is the priority action for a patient with chest pain from acute coronary syndrome?

• A. Administer sublingual nitroglycerin
• B. Check the patient's cardiac enzymes
• C. Administer aspirin
• D. Obtain IV access

Correct answer: A

Rationale: The correct answer is to administer sublingual nitroglycerin. This medication helps dilate the blood vessels, reducing the workload of the heart and improving blood flow to the heart muscle, which is crucial in the management of acute coronary syndrome. Checking cardiac enzymes (choice B) is important for diagnosing a heart attack but is not the priority over providing immediate relief to the patient's chest pain. Administering aspirin (choice C) is also important in acute coronary syndrome to prevent further clot formation, but it is not the priority action for immediate pain relief. Obtaining IV access (choice D) is necessary for administering medications or fluids; however, in this scenario, providing sublingual nitroglycerin for prompt pain relief takes precedence.

3. A patient with pre-dialysis end-stage kidney disease is asking for dietary recommendations. What should the nurse suggest?

• A. Limit protein intake
• B. Limit potassium intake
• C. Restrict sodium intake
• D. Limit phosphorus intake to 700mg/day

Correct answer: D

Rationale: In patients with pre-dialysis end-stage kidney disease, it is crucial to limit phosphorus intake to 700mg/day to manage their condition. High phosphorus levels can lead to complications such as bone and heart problems. Limiting protein intake is essential in later stages of kidney disease, particularly in dialysis patients to reduce the buildup of waste products. While limiting potassium and restricting sodium intake are also important in kidney disease management, the priority for a patient with pre-dialysis end-stage kidney disease is to control phosphorus levels.

4. What intervention is required when continuous bubbling is seen in the chest tube water seal chamber?

• A. Tighten the connections of the chest tube system
• B. Clamp the chest tube
• C. Replace the chest tube
• D. Continue monitoring the chest tube

Correct answer: A

Rationale: When continuous bubbling is observed in the chest tube water seal chamber, tightening the connections of the chest tube system is the appropriate intervention. This action can often resolve an air leak, which is the common cause of continuous bubbling. Clamping the chest tube or replacing it is not recommended as the first-line intervention because it may lead to complications or unnecessary tube changes. Continuing to monitor the chest tube without addressing the air leak would delay necessary corrective action, potentially causing respiratory compromise in the patient. Therefore, tightening the connections of the chest tube system is the most suitable initial step to manage continuous bubbling in the water seal chamber.

5. What is the priority dietary modification for a patient with pre-dialysis end-stage kidney disease?

• A. Limit phosphorus intake to 700 mg/day
• B. Increase potassium intake to 3 g/day
• C. Eat three large meals per day
• D. Restrict protein intake to 1 g/kg/day

Correct answer: A

Rationale: The correct answer is A: Limit phosphorus intake to 700 mg/day. In patients with pre-dialysis end-stage kidney disease, restricting phosphorus intake is crucial to manage their condition. Excessive phosphorus can lead to mineral and bone disorders, which are common in kidney disease. Choice B, increasing potassium intake, is not the priority and can be harmful as kidney disease often leads to hyperkalemia. Choice C, eating three large meals per day, is not recommended as smaller, frequent meals are usually better tolerated. Choice D, restricting protein intake to 1 g/kg/day, is important in later stages of kidney disease but is not the priority at the pre-dialysis stage.

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