Nursing Elites

1. What ECG changes are seen in hypokalemia?

• A. Flattened T waves on the ECG
• B. Elevated ST segments on the ECG
• C. Widened QRS complex
• D. Prominent U waves on the ECG

Correct answer: A

Rationale: The correct answer is A: Flattened T waves on the ECG. Flattened T waves are an early indicator of hypokalemia on an ECG. Choice B, Elevated ST segments, is not typically seen in hypokalemia but can be a sign of myocardial infarction. Choice C, Widened QRS complex, is more commonly associated with hyperkalemia. Choice D, Prominent U waves, is typically associated with hypokalemia, but flattened T waves are considered a more specific and early sign.

2. What intervention is needed 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, the appropriate intervention is to tighten the connections of the chest tube system. This action can help resolve an air leak, which is often the cause of continuous bubbling in the water seal chamber. Clamping the chest tube (choice B) is not recommended as it can lead to a dangerous increase in pressure within the chest. Replacing the chest tube (choice C) is not the initial intervention unless there are other indications to do so. Simply monitoring the chest tube (choice D) without taking corrective action will not address the underlying issue of the air leak causing continuous bubbling.

3. What recommendations should the nurse provide to a patient diagnosed with GERD?

• A. Avoid items like mint that increase gastric acid secretion
• B. Eat small, frequent meals
• C. Avoid eating 1 hour before bedtime
• D. Avoid black and red pepper

Correct answer: A

Rationale: The correct answer is A: 'Avoid items like mint that increase gastric acid secretion.' Mint can relax the lower esophageal sphincter, leading to increased gastric acid secretion and worsening GERD symptoms. Choice B is a good recommendation for GERD management as it helps prevent excessive stomach distension. Choice C is also a recommended practice to avoid reflux during sleep. Choice D, avoiding black and red pepper, is not directly linked to exacerbating GERD symptoms, so it is not the most relevant recommendation for a patient diagnosed with GERD.

4. What are the priority lab values to monitor in a patient with HIV?

• A. CD4 T-cell count below 180 cells/mm3
• B. White blood cell count
• C. Hemoglobin levels
• D. Serum albumin levels

Correct answer: A

Rationale: The correct answer is A: CD4 T-cell count below 180 cells/mm3. Monitoring the CD4 T-cell count is crucial in patients with HIV as it indicates the level of immunocompromise. A CD4 count below 180 cells/mm3 is considered severe immunocompromise and requires close monitoring and intervention. Choices B, C, and D are not the priority lab values to monitor in HIV patients. While white blood cell count, hemoglobin levels, and serum albumin levels can provide valuable information about the patient's health status, they are not as specific or indicative of HIV disease progression and management as the CD4 T-cell count.

5. A client scheduled for electromyography (EMG) will have small needle electrodes inserted into the muscles. What should the nurse include in the teaching?

• A. You will receive a fixed dose of radioisotope 2 hours before the procedure.
• B. Momentary flushing will occur at the beginning of the procedure.
• C. You should inform your provider if you are claustrophobic.
• D. You should expect insertion of small needle electrodes into the muscles.

Correct answer: D

Rationale: The correct answer is D. During an electromyography (EMG) procedure, small needle electrodes are inserted into the muscles to assess muscle weakness and nerve responses. Choices A, B, and C are incorrect because radioisotope is not used in EMG, flushing is not a typical occurrence, and claustrophobia is more relevant for imaging procedures like MRI or CT scans, not EMG.

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