ATI LPN Pharmacology Exam I | Nurselytic

Correct Answer: B

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Correct Answer: B - Mix the Regular and NPH in the same syringe, drawing up the Regular first.


Rationale: Regular insulin is clear and fast-acting, while NPH insulin is cloudy and intermediate-acting. Mixing in the same syringe allows for a single injection and better patient compliance. Drawing up the Regular first prevents contamination of the Regular vial with NPH, which could alter its onset of action. Mixing in the reverse order (drawing up NPH first) could lead to inaccurate dosing due to Regular insulin sticking to the NPH in the syringe. Administering in different sites or shaking vigorously are unnecessary and potentially harmful practices.

Summary:
A: Using different syringes and sites is unnecessary and may lead to confusion or errors.
C: Shaking vigorously is not recommended and could lead to denaturation of the insulin molecules.
D: Drawing up NPH first could lead to inaccurate dosing and potential contamination of Regular insulin.

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