A patient consumes 120 mL of orange juice and 120 mL of milk for breakfast, 260 mL of coffee for lunch, and 90 mL of an ice pop and 120 mL of ice cream for dinner. Calculate the intake for the 6 AM to 6 PM shift.

610 mL

710 mL

810 mL

910 mL

Answer and Explanation

The Correct Answer is B

Choice A reason: 610 mL omits ice cream (120 mL); total is 120 + 120 + 260 + 90 + 120 = 710 mL; this undercalculation misses a key liquid intake component.

Choice B reason: 710 mL sums all: 120 (juice) + 120 (milk) + 260 (coffee) + 90 (ice pop) + 120 (ice cream); melted solids count as fluid, matching clinical standards.

Choice C reason: 810 mL overestimates; no additional fluids are listed beyond 710 mL; this error likely adds non-existent intake, skewing the total inaccurately.

Choice D reason: 910 mL vastly exceeds reality; it may double-count or invent fluids; only 710 mL is supported by the listed consumption data provided.

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Correct Answer is B

Explanation

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.

A. 8:30 a.m. B. 9:00 a.m. C. 10:00 a.m. D. 10:30 a.m.

Correct Answer is B

Explanation

Choice A reason: Drawing at 8:30 a.m., 60 minutes before, is too early; trough levels, taken just before the next dose, reflect minimum concentration, and this timing risks inaccurate results.

Choice B reason: At 9:00 a.m., 30 minutes before the 9:30 a.m. dose, the trough level accurately measures the lowest vancomycin concentration, ensuring therapeutic monitoring aligns with pharmacokinetics.

Choice C reason: Drawing at 10:00 a.m., after the dose, measures a post-infusion level, not the trough; this timing misses the minimum concentration critical for dosing adjustments.

Choice D reason: At 10:30 a.m., well after the dose, blood reflects peak or random levels, not the trough, skewing data needed to assess vancomycin’s therapeutic efficacy and safety.

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A patient consumes 120 mL of orange juice and 120 mL of milk for breakfast, 260 mL of coffee for lunch, and 90 mL of an ice pop and 120 mL of ice cream for dinner. Calculate the intake for the 6 AM to 6 PM shift.

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Naxlex Comprehensive Predictor Exams

A patient is to receive insulin Regular and insulin NPH. How will the nurse draw up the insulins for administration?

Correct Answer is B

Explanation

The nurse is to administer the patient's next dose of vancomycin at 9:30 a.m. What time will the nurse draw the patient's blood to check the trough vancomycin level?

Correct Answer is B

Explanation

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