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Which combination of insulins should the nurse question if ordered by the provider?

A.

Regular and Humulin N

B.

Regular and Novolin N

C.

Lantus and Humulin N

D.

Humulin R and Novolin N

Answer and Explanation

The Correct Answer is C

A. Incorrect. Regular insulin (short-acting) and Humulin N (intermediate-acting) can be mixed.

B. Incorrect. Regular insulin and Novolin N are compatible.

C. Correct. Lantus (glargine) is a long-acting insulin that should never be mixed with other insulins.

D. Incorrect. Humulin R (short-acting) and Novolin N (intermediate-acting) can be mixed.


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Related Questions

Correct Answer is C

Explanation

A. Suggest the visitors stay a bit longer to provide support and distraction. – Noise and stimulation can worsen migraines.

B. Suggest the patient ambulates in the hallway to become fatigued, so they can rest. – Movement may increase pain.

C. Turn the lights and television off except for a night light. – Correct Answer. Migraines are worsened by light and noise, so a dark and quiet environment is best.

D. Turn on the television to be used as a distractor for the patient. – Bright lights and sound can aggravate symptoms.

Correct Answer is B

Explanation

A. Give potassium intravenously. – The potassium level is 3.7 (within normal range 3.5–5.0), so potassium is not needed yet.

B. Administer D5 NS with the insulin drip. – Correct Answer. Once glucose drops to ≤200 mg/dL, dextrose is added to prevent hypoglycemia while continuing insulin to correct ketoacidosis.

C. Administer 3% NS at 200 mL/hr. – Hypertonic saline is used for severe hyponatremia, which is not the case here.

D. Expect the insulin drip to be discontinued. – The insulin drip is not discontinued until ketoacidosis has fully resolved (when HCO3 > 18, pH > 7.3, and anion gap normalizes).

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