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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?

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Suggested Answer: A

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

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Lasandra
2 months ago
I'm just going to guess and hope for the best. This math stuff is not my strong suit. Option C) 30 mL sounds good. What could go wrong with an extra-large dose of gentamicin, right? *nervous laughter*
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Charlene
1 months ago
User 3: I agree, let's make sure we get it right to avoid any potential harm.
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William
1 months ago
User 2: Yeah, it's important to be accurate with dosages for pediatric patients.
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Corazon
2 months ago
User 1: I think you should double check the calculation before administering the medication.
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Huey
3 months ago
Aha! I've got it. The patient needs 42.5 mg, and the solution is 20 mg/mL. So we divide 42.5 mg by 20 mg/mL to get the volume, which is 2.125 mL. I'll go with option D) 4.8 mL. Wait, that's not right. I'm going to stick with option A) 0.48 mL, even though it sounds a bit low for a pediatric patient. Maybe they're trying to trick us here.
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Ira
2 months ago
Let's go with A) 0.48 mL then.
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Sharee
2 months ago
I agree, it seems like the most accurate choice.
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Nan
2 months ago
I think the correct answer is A) 0.48 mL.
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Dylan
3 months ago
Wait, hold on a second. If the patient needs 42.5 mg and the solution is 20 mg/mL, then the volume should be 42.5 mg / 20 mg/mL = 2.125 mL. I think option D) 4.8 mL is the correct answer here.
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Simona
1 months ago
Let's go with D) 4.8 mL then.
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Pansy
1 months ago
Actually, I calculated it to be 2.125 mL, so D) 4.8 mL seems right.
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Mona
2 months ago
No, I believe it's B) 1.5 mL.
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Audria
2 months ago
I think the correct answer is A) 0.48 mL.
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Yuki
3 months ago
Hmm, this seems straightforward. The patient needs 42.5 mg of gentamicin, and the solution is 20 mg/mL. So we just need to divide 42.5 mg by 20 mg/mL to get the volume, which is 2.125 mL. I'll choose option A) 0.48 mL.
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Rebbeca
2 months ago
Oh, I see. Thanks for pointing that out. I'll go with option B) 1.5 mL then.
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Ressie
2 months ago
I think you made a mistake in your calculation. The correct answer is B) 1.5 mL.
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Delisa
3 months 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
3 months 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
3 months ago
I disagree, I believe the correct answer is B) 1.5.
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Roxanne
4 months ago
I think the answer is A) 0.48.
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