PTCB Exam PTCE Topic 3 Question 94 Discussion

Actual exam question for PTCB's PTCE exam

Question #: 94
Topic #: 3

[All PTCE Questions]

A pediatric patient weighing 17 kg requires gentamicin at 2.5 mg/kg. What volume, in mL, of solution containing 20 mg/mL should be administered?

A0.48

B1.5

C30

D4.8

Show Suggested Answer

Suggested Answer: A

by Dalene at Aug 04, 2024, 01:08 AM

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Delisa

5 days ago

Okay, let's think this through step-by-step. Gentamicin at 2.5 mg/kg for a 17 kg patient. That's 17 kg x 2.5 mg/kg = 42.5 mg. The solution is 20 mg/mL, so we need to divide 42.5 mg by 20 mg/mL. That gives us 2.125 mL. I'll go with option D) 4.8 mL.

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Joseph

10 days ago

I agree with Roxanne, A) 0.48 makes sense because 2.5 mg/kg for a 17 kg patient would be 42.5 mg total, which would require 0.48 mL of the 20 mg/mL solution.

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Lai

11 days ago

I disagree, I believe the correct answer is B) 1.5.

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Roxanne

14 days ago

I think the answer is A) 0.48.

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