A nurse is preparing to administer 10 units of regular insulin and 20 units of NPH insulin to a client who has diabetes mellitus.

When mixing the two types of insulin, which of the following actions should the nurse take first?

Replace the needle for withdrawal with a safety needle.

Inject 20 units of air into the NPH insulin vial.

Inject 10 units of air into the regular insulin vial.

Withdraw 10 units of insulin from the regular insulin vial.

Answer and Explanation

The Correct Answer is B

The correct answer is choice B. Inject 20 units of air into the NPH insulin vial.

Choice A rationale:

Replacing the needle for withdrawal with a safety needle is an important step to ensure safety and prevent needle-stick injuries. However, this action is not the first step when mixing two types of insulin. The initial steps involve preparing the insulin vials by injecting air into them.

Choice B rationale:

Injecting 20 units of air into the NPH insulin vial is the correct first step. This is because NPH insulin is a suspension and needs to be mixed properly. Injecting air into the vial helps to equalize the pressure, making it easier to withdraw the correct amount of insulin later. This step is crucial to ensure accurate dosing and proper mixing of the insulin.

Choice C rationale:

Injecting 10 units of air into the regular insulin vial is also necessary, but it is not the first step. The correct sequence is to first inject air into the NPH insulin vial, then into the regular insulin vial. This order helps prevent contamination of the regular insulin with NPH insulin.

Choice D rationale:

Withdrawing 10 units of insulin from the regular insulin vial is an important step, but it should be done after injecting air into both vials. The correct sequence ensures that the insulin is mixed properly and that the doses are accurate.

By following these steps in the correct order, the nurse ensures that the insulin is mixed safely and effectively, minimizing the risk of errors and ensuring proper glycemic control for the patient.

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Correct Answer is A

Explanation

Choice A rationale:
Completing a neurological check is the correct action. The client’s sudden confusion and drowsiness could indicate a neurological issue, such as a stroke.
Choice B rationale:
Increasing the client’s fluid intake is not the first action to take. While dehydration can cause confusion, other causes need to be ruled out first.
Choice C rationale:
Administering the prescribed PRN antihypertensive medication is not the first action to take. The client’s blood pressure is not elevated, so this medication is not needed at this time.
Choice D rationale:
Holding the client’s evening dose of digoxin is not the first action to take. The client’s symptoms are not necessarily related to this medication.

A. Encourage brief exercise before meals to promote appetite. B. Place the client with the head reclined back to facilitate swallowing. C. Encourage the client to take small bites. D. Place food in the affected side of the mouth.

Correct Answer is C

Explanation

Choice A rationale:
Encouraging brief exercise before meals to promote appetite is not directly related to feeding safety for a client who has dysphagia following a stroke.
Choice B rationale:
Placing the client with the head reclined back to facilitate swallowing is incorrect. It’s safer for the client to sit upright during feeding to prevent aspiration.
Choice C rationale:
Encouraging the client to take small bites can help prevent choking and aspiration, making it a safe feeding practice for clients with dysphagia.
Choice D rationale:
Placing food in the affected side of the mouth is not a safe practice. It’s recommended to place food on the unaffected side of the mouth.

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A nurse is preparing to administer 10 units of regular insulin and 20 units of NPH insulin to a client who has diabetes mellitus. When mixing the two types of insulin, which of the following actions should the nurse take first?

Choice A rationale:

Choice B rationale:

Choice C rationale:

Choice D rationale:

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse on a medical unit is caring for a client who suddenly becomes confused and drowsy. Additional data includes pulse 100/min, respiratory rate 24/min, BP 132/76 mm Hg, and temperature 36.8° C (98.2° F). Which of the following actions should the nurse perform?

Correct Answer is A

Explanation

A nurse is instructing a client's family members about feeding safety for a client who has dysphagia following a stroke. Which of the following instructions should the nurse include?

Correct Answer is C

Explanation

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A nurse is preparing to administer 10 units of regular insulin and 20 units of NPH insulin to a client who has diabetes mellitus.

When mixing the two types of insulin, which of the following actions should the nurse take first?