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:
A decrease in heart rate is an indication of adequate fluid replacement. As fluid volume is restored, the heart does not have to work as hard to pump blood, so the heart rate decreases.
Choice B rationale:
Blood pressure is not a reliable indicator of fluid volume status. It can be influenced by many factors, including pain, anxiety, and medications.
Choice C rationale:
Weight is not a reliable indicator of fluid volume status in the short term. It can take several days for changes in fluid volume to be reflected in weight.
Choice D rationale:
Urine output is a good indicator of kidney function, but it is not a reliable indicator of fluid volume status. Many factors can influence urine output, including kidney function, fluid intake, and medications.

A. The burned area is pink in color with blisters present. B. The burned area is yellow in color with severe edema. C. The burned area is black in color and pain is absent. D. The burned area is red in color with eschar present.

Correct Answer is B

Explanation

Choice A rationale:
A pink color with blisters present is indicative of a superficial partial-thickness burn, not a deep partial-thickness burn.
Choice B rationale:
A yellow color with severe edema is indicative of a deep partial-thickness burn. This type of burn involves the entire dermis and damage to nerve endings, blood vessels, and sweat glands.
Choice C rationale:
A black color and absence of pain is indicative of a full-thickness burn, not a deep partial-thickness burn.
Choice D rationale:
A red color with eschar present is indicative of a full-thickness burn, not a deep partial-thickness burn.

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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 is monitoring a client who was admitted with a severe burn injury and is receiving IV fluid resuscitation therapy. The nurse should identify a decrease in which of the following findings as an indication of adequate fluid replacement?

Correct Answer is A

Explanation

A nurse is assessing a client who is brought to the emergency room with burn injuries. Which of the following findings should the nurse identify as a deep partial-thickness burn?

Correct Answer is B

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?