Nursing Elites

1. A client with chronic obstructive pulmonary disease (COPD) who is beginning oxygen therapy asks the nurse why the flow rate cannot be increased to more than 2 L/min. The nurse responds that this would be harmful because it could:

• A. Be drying to nasal passages
• B. Decrease the client’s oxygen-based respiratory drive
• C. Increase the risk of pneumonia due to drier air passages
• D. Decrease the client’s carbon dioxide–based respiratory drive

Correct answer: B

Rationale: Increasing the oxygen flow rate beyond 2 L/min for a client with COPD can decrease the client's oxygen-based respiratory drive. In clients with COPD, the natural respiratory drive is based on the level of oxygen instead of carbon dioxide, as seen in healthy individuals. Increasing the oxygen level independently can suppress the drive to breathe, leading to respiratory failure. Choices A, C, and D are incorrect because drying of nasal passages, increased risk of pneumonia due to drier air passages, and decreasing the carbon dioxide-based respiratory drive are not the primary concerns associated with increasing the oxygen flow rate in a client with COPD.

2. Why is the combination drug trimethoprim-sulfamethoxazole (TMP-SMX) necessary?

• A. To broaden the antibacterial spectrum.
• B. To decrease bacterial resistance.
• C. To improve the taste.
• D. To minimize toxic effects.

Correct answer: B

Rationale: The correct answer is B: To decrease bacterial resistance. Trimethoprim-sulfamethoxazole (TMP-SMX) is a combination drug used to prevent bacterial resistance to sulfonamides. It works by targeting different steps in the bacterial metabolic pathway, making it harder for bacteria to develop resistance. Choice A is incorrect because the combination does not broaden the antibacterial spectrum; instead, it enhances effectiveness against specific bacteria. Choice C is incorrect as taste improvement is not the primary reason for combining these drugs. Choice D is incorrect because while combination therapy can sometimes help minimize toxic effects, the primary purpose in this case is to address bacterial resistance.

3. In a patient with pneumonia, what is the primary goal of treatment?

• A. Reducing inflammation.
• B. Eliminating the infection.
• C. Reducing pain.
• D. Preventing complications.

Correct answer: B

Rationale: The primary goal of treating pneumonia is to eliminate the infection. Antibiotics are commonly used to target the specific pathogen causing pneumonia. While reducing inflammation and preventing complications are important aspects of treatment, the key focus initially is on eradicating the infectious agent to improve the patient's condition and prevent further spread of the infection.

4. After checking the client’s gag reflex following an esophagogastroduodenoscopy (EGD), which action should the nurse take?

• A. Taking the client’s vital signs
• B. Giving the client a drink of water
• C. Monitoring the client for a sore throat
• D. Being alert to complaints of heartburn

Correct answer: A

Rationale: After an esophagogastroduodenoscopy (EGD), the nurse's priority is to assess the client's airway by checking the gag reflex. Once this assessment is done, the next step is to take the client's vital signs to monitor for any signs of complications such as bleeding or changes in respiratory status. Giving the client water immediately after the procedure may not be appropriate, as the client may still have a compromised gag reflex and is at risk for aspiration. Monitoring for a sore throat is important but not the immediate priority post-procedure. Being alert to complaints of heartburn is relevant for assessing the client's symptoms but is not the priority immediately after checking the gag reflex.

5. In a patient with cirrhosis, which of the following lab results is most concerning?

• A. Elevated liver enzymes.
• B. Low albumin levels.
• C. Elevated bilirubin levels.
• D. Low platelet count.

Correct answer: D

Rationale: In a patient with cirrhosis, a low platelet count is the most concerning lab result. Thrombocytopenia, or low platelet count, is common in cirrhosis due to impaired platelet production in the liver. It significantly increases the risk of bleeding and can lead to serious complications such as hemorrhage. Elevated liver enzymes (Choice A) are expected in cirrhosis but may not directly indicate the severity of the disease. Low albumin levels (Choice B) are common in cirrhosis and can contribute to fluid retention but do not pose an immediate risk of bleeding. Elevated bilirubin levels (Choice C) are also expected in cirrhosis and typically indicate impaired liver function but do not directly increase the risk of bleeding as much as a low platelet count.

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