Nursing Elites

1. A client with histoplasmosis has the following arterial blood gas (ABG) results: pH 7.30, PCO2 58 mm Hg, PO2 75 mm Hg, HCO3 27 mEq/L. Which of the following acid-base disturbances does the nurse recognize in these results?

• A. Metabolic acidosis
• B. Metabolic alkalosis
• C. Respiratory acidosis
• D. Respiratory alkalosis

Correct answer: A

Rationale: The client's ABG results show a low pH (acidosis) and an elevated PCO2, indicating respiratory acidosis. In respiratory acidosis, there is inadequate excretion of CO2, leading to increased PCO2 levels and a decrease in pH. Therefore, the correct answer is 'Metabolic acidosis'. Choices B, C, and D are incorrect. Metabolic alkalosis is characterized by elevated pH and bicarbonate levels. Respiratory acidosis involves low pH and high PCO2 levels, as seen in this case. Respiratory alkalosis is associated with high pH and low PCO2 levels.

2. A client recovering from extracorporeal shock wave lithotripsy for renal calculi has an ecchymotic area on the right lower back. What action should the nurse take?

• A. Administer fresh-frozen plasma.
• B. Apply an ice pack to the site.
• C. Place the client in the prone position.
• D. Obtain serum coagulation test results.

Correct answer: B

Rationale: After extracorporeal shock wave lithotripsy, ecchymosis can occur due to bleeding into the tissues from the shock waves. Applying an ice pack helps reduce the extent and discomfort of bruising. Administering fresh-frozen plasma and obtaining coagulation test results are not necessary as ecchymosis after this procedure is common and does not indicate a bleeding disorder that requires immediate intervention. Placing the client in the prone position will not address the bleeding or bruising in this situation.

3. The nurse is preparing to administer amoxicillin (Amoxil) to a patient and learns that the patient previously experienced a rash when taking penicillin. Which action will the nurse take?

• A. Administer the amoxicillin and have epinephrine available.
• B. Ask the provider to order an antihistamine.
• C. Contact the provider to discuss using a different antibiotic.
• D. Request an order for a beta-lactamase-resistant drug.

Correct answer: C

Rationale: When a patient has a history of rash from penicillin, it indicates a potential allergic reaction to penicillin and other related drugs, such as amoxicillin. It is crucial to avoid administering penicillins to such patients unless there is no alternative. The nurse's best action in this situation is to contact the provider to discuss using a different antibiotic from a different class. This approach helps prevent potential severe allergic reactions. While epinephrine and antihistamines are used to manage allergic reactions, administering amoxicillin despite the known allergy is not advisable and could lead to serious consequences. Requesting a beta-lactamase-resistant drug does not address the issue of potential allergic reactions in this scenario.

4. The client has been managing angina episodes with nitroglycerin. Which of the following indicates the drug is effective?

• A. Decreased chest pain.
• B. Increased blood pressure.
• C. Decreased blood pressure.
• D. Decreased heart rate.

Correct answer: A

Rationale: The correct answer is A: Decreased chest pain. Nitroglycerin is a vasodilator that works by decreasing myocardial oxygen consumption, which helps to reduce chest pain caused by angina. Therefore, a reduction in chest pain is a positive indicator of the drug's effectiveness. Choices B, C, and D are incorrect because nitroglycerin does not typically increase blood pressure or heart rate; instead, it often causes a decrease in blood pressure due to vasodilation and may cause a reflex tachycardia (increased heart rate) as a compensatory response to lowered blood pressure.

5. The nurse is preparing to administer an antibiotic to a patient who has been receiving the antibiotic for 2 days after a culture was obtained. The nurse notes increased erythema and swelling, and the patient has a persistent high fever of 39°C. What is the nurse’s next action?

• A. Administer the antibiotic as ordered.
• B. Contact the provider to request another culture.
• C. Discuss the need to add a second antibiotic with the provider.
• D. Review the sensitivity results from the patient’s culture.

Correct answer: D

Rationale: In this scenario, the nurse is observing signs of a possible lack of response to the current antibiotic therapy, such as increased erythema, swelling, and persistent high fever. The next appropriate action for the nurse is to review the sensitivity results from the patient’s culture. This step is crucial to determine if the current antibiotic is effective against the causative organism. If the sensitivity results indicate resistance to the current antibiotic, the antibiotic should be discontinued, and the provider should be notified for a change in therapy. Contacting the provider to request another culture is not the immediate priority, as the existing culture results need to be reviewed first. Adding a second antibiotic should only be considered after confirming the sensitivity results, as unnecessary antibiotic use can lead to antimicrobial resistance.

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