Nursing Elites

1. A healthcare professional is reviewing the laboratory values for a client who has a positive Chvostek's sign. Which of the following laboratory findings should the healthcare professional expect?

• A. Decreased calcium
• B. Elevated potassium
• C. Increased sodium
• D. Low hemoglobin

Correct answer: A

Rationale: A positive Chvostek's sign is a clinical indication of low calcium levels, known as hypocalcemia. This sign is elicited by tapping the facial nerve anterior to the ear, resulting in facial muscle twitching. The correct laboratory finding associated with a positive Chvostek's sign is decreased calcium. Elevated potassium (Choice B) is not typically associated with Chvostek's sign but can be seen in conditions like renal failure. Increased sodium (Choice C) is not directly related to Chvostek's sign and is more commonly associated with hypernatremia. Low hemoglobin (Choice D) is not the expected laboratory finding in a client with a positive Chvostek's sign; instead, it suggests anemia, which is unrelated to this clinical manifestation.

2. What is the most important action for the nurse to take to prevent infection in a client who has just returned from surgery with an indwelling urinary catheter in place?

• A. Change the catheter every 72 hours.
• B. Ensure the catheter tubing is free of kinks.
• C. Clean the perineal area with antiseptic solution daily.
• D. Irrigate the catheter with normal saline every shift.

Correct answer: B

Rationale: The most important action to prevent infection in a client with an indwelling urinary catheter is to ensure the catheter tubing is free of kinks. This action helps prevent obstruction, ensures proper drainage, and reduces the risk of infection. Changing the catheter every 72 hours is not necessary unless clinically indicated and may introduce unnecessary risk. Cleaning the perineal area with antiseptic solution daily is important for general hygiene but not the most critical action for catheter-related infection prevention. Irrigating the catheter with normal saline every shift is not a routine nursing intervention for catheter care and may increase the risk of introducing pathogens.

3. A client with diabetes mellitus is being taught by a nurse about mixing regular and NPH insulin. Which of the following statements by the client indicates an understanding of the teaching?

• A. I should roll the NPH vial between my hands before drawing it up.
• B. I should draw up the NPH insulin before the regular insulin.
• C. I should inject air into the vial of regular insulin first.
• D. I should wait 10 minutes after mixing the insulin to inject it.

Correct answer: A

Rationale: The correct answer is A. Rolling the NPH vial between the hands before drawing it up ensures proper mixing of the insulin. Choice B is incorrect because regular insulin should be drawn up first to avoid contamination. Choice C is incorrect as injecting air into the vial of regular insulin is not necessary. Choice D is incorrect as there is no need to wait 10 minutes after mixing the insulin before injecting it.

4. A healthcare professional is preparing to administer IV fluids to a client. The professional notes sparks when plugging in the IV pump. Which of the following actions should the professional take first?

• A. Label the pump with a defective equipment sticker.
• B. Unplug the pump.
• C. Obtain a replacement pump.
• D. Notify the maintenance department to fix the pump.

Correct answer: B

Rationale: Unplugging the pump is the correct initial action in this situation to prevent any potential fire hazards. Sparks when plugging in the IV pump indicate an electrical issue that can lead to a fire. By immediately unplugging the pump, the healthcare professional ensures the safety of the client and prevents any further risks. Labeling the pump with a defective equipment sticker (Choice A) is not the priority as the immediate concern is safety. Obtaining a replacement pump (Choice C) can be considered after addressing the safety issue. Notifying the maintenance department (Choice D) is important but should follow the immediate action of unplugging the pump to mitigate the risk.

5. Which action is most important for maintaining sterility when donning sterile gloves?

• A. Maintain thumbs at a ninety-degree angle.
• B. Hold hands with fingers pointing downward while gloving.
• C. Keep gloved hands above the elbows.
• D. Put the glove on the dominant hand first.

Correct answer: C

Rationale: The most crucial action for maintaining sterility when donning sterile gloves is to keep gloved hands above the elbows. This practice is essential to prevent potential contamination and maintain a sterile field. Choices A, maintaining thumbs at a ninety-degree angle, and B, holding hands with fingers pointing downward while gloving, are not as critical as keeping hands above the elbows for maintaining sterility. Choice D, putting the glove on the dominant hand first, is not as important as ensuring that gloved hands are kept above the elbows to maintain sterility.

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