A patient is to receive insulin Regular and insulin NPH. How will the nurse draw up the insulins for administration?
Administer the two insulins using different syringes and different sites of the body.
Mix the Regular and NPH in the same syringe, drawing up the Regular first.
Shake the bottles vigorously before drawing up the insulins.
Mix the Regular and NPH in the same syringe, drawing up the NPH first.
The Correct Answer is B
Choice A reason: Separate syringes increase injection sites and patient discomfort; mixing is standard as Regular and NPH are compatible, optimizing insulin delivery efficiency and absorption.
Choice B reason: Drawing Regular (clear) before NPH (cloudy) in one syringe prevents contamination of the short-acting vial with the intermediate-acting insulin, ensuring accurate dosing and stability.
Choice C reason: Shaking insulin damages its structure; NPH requires gentle rolling to mix, while Regular needs no mixing, making vigorous shaking inappropriate for preparation.
Choice D reason: Drawing NPH first risks contaminating the Regular vial with NPH particles, altering its rapid action; the clear-to-cloudy sequence maintains insulin integrity and efficacy.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A reason: The barrel holds the medication; it’s the main body, not typically #7, and its static role doesn’t involve direct manipulation like other parts.
Choice B reason: The plunger, often numbered high in diagrams, moves to draw or inject; its dynamic function in volume control makes it a likely #7 candidate.
Choice C reason: The needle pierces tissue; usually a lower number, it’s distinct from the syringe’s operational core, less likely to be #7 in standard layouts.
Choice D reason: The tip connects the needle; a minor component, it’s rarely highlighted as #7, overshadowed by the plunger or barrel in functional importance.
Correct Answer is C
Explanation
Choice A reason: Osteoarthritis limits mobility; it doesn’t affect kidney function directly, so nephrotoxic drug clearance remains unchanged, not warranting a dose reduction.
Choice B reason: Diet impacts metabolism slightly; low protein may spare kidneys, but it doesn’t indicate impaired clearance requiring adjustment of nephrotoxic medication.
Choice C reason: Diabetic kidney disease with hypertension impairs filtration; reduced glomerular rate necessitates lower nephrotoxic doses to prevent further renal damage.
Choice D reason: Smoking affects lungs primarily; while it may indirectly harm kidneys, it’s less definitive than diabetic nephropathy for needing a reduced dose.
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