Nursing Elites

1. A client is to receive cimetidine (Tagamet) 300 mg q6h IVP. The preparation arrives from the pharmacy diluted in 50 ml of 0.9% NaCl. The nurse plans to administer the IVPB dose over 20 minutes. For how many ml/hr should the infusion pump be set to deliver the secondary infusion?

• A. 75 ml/hr
• B. 150 ml/hr
• C. 225 ml/hr
• D. 300 ml/hr

Correct answer: B

Rationale: To calculate the infusion rate, set up a ratio proportion problem: 50 ml/20 min = x ml/60 min. Cross multiply to solve: 50 × 60 / 20 = 150 ml/hr. Therefore, the infusion pump should be set to deliver the secondary infusion at a rate of 150 ml/hr. Option A, 75 ml/hr, is incorrect because it does not account for the correct calculation. Option C, 225 ml/hr, is incorrect as it is too high a rate based on the calculation. Option D, 300 ml/hr, is also incorrect as it does not align with the correct calculation for the infusion rate.

2. The nurse determines that a postoperative client's respiratory rate has increased from 18 to 24 breaths/min. Based on this assessment finding, which intervention is most important for the nurse to implement?

• A. Encourage the client to increase ambulation in the room.
• B. Offer the client a high-carbohydrate snack for energy.
• C. Force fluids to thin the client's pulmonary secretions.
• D. Determine if pain is causing the client's tachypnea.

Correct answer: D

Rationale: An increased respiratory rate can be a sign of various issues postoperatively, including pain. Assessing and managing pain is crucial as it can lead to tachypnea. Pain, anxiety, and fluid accumulation in the lungs can all contribute to an increased respiratory rate. Therefore, determining if pain is causing the tachypnea is the most important intervention to address the underlying cause. Encouraging ambulation, offering snacks, or forcing fluids are not the priority in this situation as pain assessment takes precedence in managing the increased respiratory rate.

3. The nurse is completing a client's preoperative routine and finds that the operative permit is not signed. The client begins to ask more questions about the surgical procedure. Which action should the nurse take next?

• A. Witness the client's signature on the permit.
• B. Answer the client's questions about the surgery.
• C. Inform the surgeon that the operative permit is not signed and the client has questions about the surgery.
• D. Reassure the client that the surgeon will answer any questions before the anesthesia is administered.

Correct answer: C

Rationale: The nurse should inform the surgeon immediately that the operative permit is not signed and that the client has questions about the surgery. It is crucial for the surgeon to be aware of the situation so they can address the client's concerns, explain the procedure, and obtain the necessary signed permit before proceeding with the surgery. This ensures informed consent and compliance with preoperative protocols.

4. Which assessment data would provide the most accurate determination of proper placement of a nasogastric tube?

• A. Aspirating gastric contents to assure a pH value of 4 or less.
• B. Hearing air pass in the stomach after injecting air into the tubing.
• C. Examining a chest x-ray obtained after the tubing was inserted.
• D. Checking the remaining length of tubing to ensure that the correct length was inserted.

Correct answer: C

Rationale: The most accurate method to confirm the proper placement of a nasogastric tube is by examining a chest x-ray obtained after the tubing was inserted. This visual assessment allows healthcare providers to directly visualize the position of the tube in relation to anatomical landmarks, ensuring it is correctly placed in the stomach. Aspirating gastric contents or hearing air pass may provide some information but are not as definitive as a chest x-ray for confirming placement. Checking the remaining length of tubing is not a reliable method for determining proper placement as it does not indicate where the tip of the tube lies within the body.

5. A client with a history of myocardial infarction (MI) is admitted with chest pain. Which laboratory test should the nurse expect to be ordered to determine if the client is experiencing another MI?

• A. Troponin
• B. Myoglobin
• C. CK-MB
• D. C-reactive protein

Correct answer: A

Rationale: Troponin is the most specific and sensitive laboratory test for detecting myocardial infarction (MI). It is released when there is damage to the heart muscle, making it a valuable marker for diagnosing another MI. Myoglobin and CK-MB can also be elevated in MI, but troponin is preferred due to its higher specificity. C-reactive protein is a marker of inflammation and not specific to MI.

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