A nurse is preparing to mix NPH insulin and regular insulin for administration.
Which of the following actions should the nurse take?

Use a tuberculin syringe.

Inject air into each vial.

Withdraw the NPH insulin first.

Shake the regular insulin vial.

Answer and Explanation

The Correct Answer is B

Choice A rationale:

While a tuberculin syringe can be used for insulin administration, it’s not necessary when mixing NPH and regular insulin. Insulin syringes are typically used for this purpose.

Choice B rationale:

Injecting air into each vial before withdrawing insulin helps equalize pressure and makes it easier to draw up the insulin. This should be done before withdrawing any insulin.

Choice C rationale:

Withdrawing NPH insulin first contradicts the standard practice of drawing up insulins. The usual recommendation is to draw up short-acting (regular) insulin before intermediate-acting (NPH) insulin.

Choice D rationale:

Shaking the regular insulin vial is unnecessary and could potentially create bubbles, making it harder to draw up the correct dose of insulin.

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Correct Answer is C

Explanation

Choice Arationale:

The statement about taking the medication with food is incorrect. Nitroglycerin sublingual tablets should not be taken with food. They work much faster when absorbed through the lining of the mouth.

Choice B rationale:

The statement that the medication can slow the heart rate is incorrect. Nitroglycerin does not slow the heart rate. In fact, it can cause a reflex tachycardia, where the heart rate increases.

Choice C rationale:

The statement that the effects of the medication should be felt within 5 minutes is correct. This indicates an understanding of the instructions.

Choice Drationale:

Taking the medication every 10 minutes until the pain goes away is incorrect. Nitroglycerin sublingual tablets usually give relief in 1 to 5 minutes. However, if the pain is not relieved, a second tablet can be taken 5 minutes after the first tablet. If the pain continues for another 5 minutes, a third tablet may be used. Taking the medication every 10 minutes could lead to an overdose.

A. Renal excretion time slows for medication. B. Hepatic enzymes process medications more rapidly. C. Brain receptors become less sensitive to medications. D. Gastric emptying rate increases.

Correct Answer is A

Explanation

Choice A rationale:

Renal excretion time slows for medication. As people age, kidney function gradually decreases, which slows the excretion of medications. This can lead to increased levels of the drug in the body, which can increase the risk of side effects.

Choice B rationale:

Hepatic enzymes do not process medications more rapidly in older adults. In fact, liver function also decreases with age, which can slow the metabolism of medications.

Choice C rationale:

Brain receptors do not become less sensitive to medications in older adults. The sensitivity of brain receptors to medications can vary widely and is not necessarily related to age.

Choice D rationale:

Gastric emptying rate does not increase with age. On the contrary, it often slows down, which can affect the absorption of some medications.

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A nurse is preparing to mix NPH insulin and regular insulin for administration.Which of the following actions should the nurse take?

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A nurse is preparing to mix NPH insulin and regular insulin for administration.
Which of the following actions should the nurse take?