Nursing Elites

1. What does continuous bubbling in the water seal chamber of a chest tube indicate?

• A. An air leak
• B. Normal chest tube function
• C. A blockage in the chest tube
• D. A malfunction in the drainage system

Correct answer: A

Rationale: Continuous bubbling in the water seal chamber of a chest tube indicates an air leak. This bubbling occurs when air leaks from the patient's pleural space into the chest tube system. It is essential to address this issue promptly to prevent complications like a pneumothorax. Choices B, C, and D are incorrect because continuous bubbling in the water seal chamber is not indicative of normal chest tube function, a blockage in the chest tube, or a malfunction in the drainage system.

2. 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.

3. What is the most likely cause of continuous bubbling in the water seal chamber of a chest tube?

• A. An air leak
• B. A blockage in the chest tube
• C. Normal chest tube function
• D. Drainage from the chest tube

Correct answer: A

Rationale: Continuous bubbling in the water seal chamber of a chest tube usually indicates an air leak. An air leak can disrupt the negative pressure required for the chest tube to function properly, leading to inadequate drainage and potential complications. A blockage in the chest tube would typically result in decreased or absent drainage rather than continuous bubbling. Normal chest tube function does not involve continuous bubbling in the water seal chamber. Drainage from the chest tube may lead to fluid moving into the drainage system, but it would not cause continuous bubbling in the water seal chamber.

4. A nurse is assessing a client who has a heart rate of 40/min. The client is diaphoretic and has chest pain. Which of the following medications should the nurse plan to administer?

• A. Lidocaine
• B. Adenosine
• C. Atropine
• D. Verapamil

Correct answer: C

Rationale: The correct answer is C: Atropine. The client's presentation of bradycardia, diaphoresis, and chest pain indicates reduced cardiac output, requiring intervention to increase the heart rate. Atropine is used to treat bradycardia by blocking cardiac muscarinic receptors, thus inhibiting the parasympathetic nervous system. Lidocaine (Choice A) is used for ventricular arrhythmias, not bradycardia. Adenosine (Choice B) is used for supraventricular tachycardia, not bradycardia. Verapamil (Choice D) is a calcium channel blocker used for certain arrhythmias and hypertension, but not for increasing heart rate in bradycardia.

5. What is the priority lab value to monitor in a patient with HIV?

• A. CD4 T-cell count 180 cells/mm3
• B. White blood cell count 4,500/mm3
• C. Potassium levels 3.5-5.0 mEq/L
• D. Hemoglobin levels below 12g/dL

Correct answer: A

Rationale: The correct answer is A: CD4 T-cell count 180 cells/mm3. Monitoring the CD4 T-cell count is crucial in patients with HIV to assess the status of their immune system. A CD4 count of 180 cells/mm3 indicates severe immunocompromise and a high risk of opportunistic infections. This value is used to guide treatment decisions and assess the need for prophylaxis against specific infections. Choices B, C, and D are incorrect because monitoring white blood cell count, potassium levels, and hemoglobin levels, although important in HIV patients, are not as crucial as monitoring the CD4 T-cell count for assessing immune function and disease progression.

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