Nursing Elites

1. In which of the following organs does the exchange of gases take place?

• A. Kidneys
• B. Lungs
• C. Liver
• D. Heart

Correct answer: B

Rationale: The exchange of gases, specifically oxygen and carbon dioxide, occurs in the lungs. In the lungs, oxygen from the air we breathe enters the bloodstream, while carbon dioxide is removed from the bloodstream and exhaled. This process is essential for respiration and supplying the body with oxygen for energy production. The kidneys filter waste from the blood to produce urine and regulate fluid balance (Choice A). The liver is involved in detoxification, protein synthesis, and producing bile (Choice C). The heart is responsible for pumping blood throughout the body to deliver oxygen and nutrients (Choice D).

2. When caring for a client who is on contact precautions, which of the following measures should the nurse include in the teaching?

• A. Remove the protective gown after leaving the client's room.
• B. Place the client in a room with negative pressure.
• C. Wear gloves when providing care to the client.
• D. Wear a mask when in the client's room.

Correct answer: C

Rationale: Contact precautions are used for clients with known or suspected infections that are spread by direct or indirect contact. The most important measure for healthcare workers when caring for a client on contact precautions is to wear gloves when providing care. This helps prevent the transmission of infectious agents between the client and the healthcare worker. Removing the protective gown after leaving the client's room, placing the client in a room with negative pressure, and wearing a mask when in the client's room are not specific to contact precautions and may not be necessary for all clients on contact precautions.

3. A healthcare provider is caring for an adolescent who has sickle-cell anemia. Which of the following manifestations indicates acute chest syndrome and should be immediately reported to the provider?

• A. Substernal retractions
• B. Hematuria
• C. Temperature 37.9�C (100.2�F)
• D. Sneezing

Correct answer: A

Rationale: Substernal retractions are a concerning sign of respiratory distress and can indicate acute chest syndrome, a severe complication of sickle-cell anemia. It results from vaso-occlusion in the pulmonary vasculature, leading to impaired oxygenation. Prompt reporting of this symptom is crucial for early intervention to prevent further complications. Hematuria, a high temperature, and sneezing are not specific manifestations of acute chest syndrome and would not warrant immediate notification to the provider in this context.

4. Which technique in physical examination is used to assess the movement of air through the tracheobronchial tree?

• A. Palpation
• B. Auscultation
• C. Inspection
• D. Percussion

Correct answer: B

Rationale: The correct answer is B: Auscultation. Auscultation is a technique in physical examination used to assess the movement of air through the tracheobronchial tree. During auscultation, healthcare providers listen to lung sounds using a stethoscope to detect abnormalities such as wheezing, crackles, or diminished breath sounds, which can indicate conditions affecting the airways or lungs. Palpation (Choice A) involves feeling the body for abnormalities, Inspection (Choice C) involves visual examination, and Percussion (Choice D) involves tapping on the body to produce sounds that can help in assessing underlying structures, but they are not directly used to assess air movement through the tracheobronchial tree.

5. When educating a client who experienced a pneumothorax, which of the following statements should the nurse use?

• A. Notify the provider if you experience weakness.
• B. You should be able to return to work in 1 week.
• C. You need to wear a mask when in crowded areas.
• D. Notify your provider if you experience a productive cough.

Correct answer: D

Rationale: After experiencing a pneumothorax, it is crucial for the client to be educated on potential complications. A productive cough can indicate infection or another issue, requiring prompt medical attention. Weakness, returning to work, and wearing a mask in crowded areas are important considerations but not as critical as monitoring for respiratory symptoms post-pneumothorax.

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