Nursing Elites

1. What are the pressure-sensitive structures located in the aortic and carotid bodies called?

• A. Baroreceptors
• B. Chemoreceptors
• C. Nociceptors
• D. Mechanoreceptors

Correct answer: A

Rationale: Baroreceptors are the correct answer. Baroreceptors are specialized sensory receptors that detect changes in pressure within blood vessels. They are primarily located in the aortic arch and carotid sinuses, where they play a crucial role in regulating blood pressure. Chemoreceptors (Choice B) are receptors that detect chemical changes, not pressure changes. Nociceptors (Choice C) are responsible for detecting painful stimuli. Mechanoreceptors (Choice D) respond to mechanical stimuli such as touch, pressure, and vibration, but they are not specifically located in the aortic and carotid bodies.

2. What is the procedure to remove a sample of tissue from the lung for examination under a microscope?

• A. Lung biopsy
• B. Bronchoscopy
• C. Thoracentesis
• D. Lobectomy

Correct answer: A

Rationale: The correct answer is A, lung biopsy. A lung biopsy involves removing a small sample of lung tissue for examination under a microscope to diagnose lung conditions. Choice B, bronchoscopy, is a procedure where a thin, flexible tube with a light and camera is inserted into the airways to view the lungs. This procedure is more for diagnostic purposes and not specifically for tissue removal. Choice C, thoracentesis, is a procedure to remove fluid from the pleural space around the lungs for diagnostic or therapeutic purposes, not for tissue biopsy. Choice D, lobectomy, is a surgical procedure to remove a lobe of the lung, usually done to treat conditions like lung cancer or severe infections, but it does not involve removing tissue for microscopic examination.

3. Which condition is characterized by a chronic cough that produces mucus, often caused by long-term exposure to irritants?

• A. Chronic bronchitis
• B. Tuberculosis
• C. Asthma
• D. Sinusitis

Correct answer: A

Rationale: Chronic bronchitis is the correct answer. It is characterized by a long-term cough with mucus production, often caused by smoking or prolonged exposure to irritants. Tuberculosis (choice B) is a bacterial infection that primarily affects the lungs but does not usually present with a chronic cough as the main symptom. Asthma (choice C) is a chronic respiratory condition characterized by inflammation and narrowing of the airways, leading to wheezing and shortness of breath, but it does not typically cause chronic mucus production. Sinusitis (choice D) is inflammation of the sinuses and presents with symptoms like facial pain, nasal congestion, and post-nasal drip, but not specifically a chronic cough with mucus production.

4. What is the condition where the heart's mitral valve does not close properly, allowing blood to leak backward into the left atrium?

• A. Mitral regurgitation
• B. Aortic stenosis
• C. Tricuspid regurgitation
• D. Pulmonary hypertension

Correct answer: A

Rationale: Mitral regurgitation is the condition where the heart's mitral valve does not close properly, allowing blood to leak backward into the left atrium. This can result in symptoms like shortness of breath and fatigue. Choices B, C, and D are incorrect because aortic stenosis, tricuspid regurgitation, and pulmonary hypertension involve different heart valves or conditions, not the mitral valve specifically.

5. The client on a beta blocker has a blood pressure of 88/58 mm Hg. What is the nurse’s priority action?

• A. Hold the beta blocker and notify the healthcare provider.
• B. Administer the beta blocker as ordered.
• C. Increase the dose of the beta blocker.
• D. Continue to monitor the client and reassess in 30 minutes.

Correct answer: A

Rationale: The correct action for the nurse to take when a client on a beta blocker presents with a blood pressure of 88/58 mm Hg is to hold the beta blocker and notify the healthcare provider. Beta blockers can further decrease blood pressure, which is already low in this case. Administering the beta blocker as ordered (Choice B) would exacerbate the hypotension. Increasing the dose of the beta blocker (Choice C) would be inappropriate and unsafe given the low blood pressure. Continuing to monitor the client and reassessing in 30 minutes (Choice D) could lead to a delay in necessary intervention. Therefore, the priority is to hold the medication and seek guidance from the healthcare provider.

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