NABP NAPLEX Exam - Topic 5 Question 87 Discussion

Actual exam question for NABP's NAPLEX exam

Question #: 87
Topic #: 5

You need 51.3 mEq of NaCl to make 1/3 NS 1 liter bag. How many ml of 23.4% NaCl would you need? (Molecular weight of Na is 23 and Cl is 35.5)

A12.82ml B. 16.82ml

C23.4ml

D58.5ml

E10ml

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Suggested Answer: A

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by Willis at Jul 16, 2024, 02:02 AM

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Letha

7 months ago

How did you even get to that number? Seems complicated!

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Alverta

8 months ago

Just to confirm, 23.4% NaCl means 23.4g in 100ml.

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Cathrine

8 months ago

Wait, are we sure about that? Sounds off to me.

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Matthew

8 months ago

Totally agree, that’s the right amount!

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Ben

8 months ago

You need 12.82ml of 23.4% NaCl for that!

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Teri

9 months ago

I feel like I should be able to figure this out, but I'm second-guessing whether 23.4% is the right concentration to use for the calculation.

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Jutta

9 months ago

This seems similar to the question we did on IV solutions, but I can't remember if we used a different concentration for that one.

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Eden

9 months ago

I think we need to use the molecular weight to find the grams first, then convert that to ml. I just can't recall the exact steps.

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Leota

9 months ago

I remember we calculated mEq in a practice question, but I'm not sure how to convert that to ml of the solution.

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Chauncey

9 months ago

Sounds good, I'm going to give it a try. This seems like the kind of question I need to practice to get comfortable with these types of calculations.

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Michael

9 months ago

I think the key is to use the molecular weights of Na and Cl to convert the 51.3 mEq of NaCl into the mass of NaCl, and then use the 23.4% concentration to calculate the volume.

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Amber

9 months ago

I'm a little confused about the 1/3 NS 1 liter bag part. Does that factor into the calculation, or is it just background information?

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Rozella

9 months ago

Okay, let's think this through step-by-step. We need to find the volume of 23.4% NaCl solution that would give us 51.3 mEq of NaCl.

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Ona

9 months ago

This looks like a straightforward calculation, but I want to make sure I have the right approach before I start working through it.

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Teresita

9 months ago

The IPv6 downloadable ACLs feature is new to me. I'll make sure to read through that option carefully.

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Adelaide

10 months ago

From what I recall, getting agreement to release partially completed software isn't common in these meetings. They usually focus on quality issues.

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Tamar

1 year ago

I'm so thirsty, I could drink a whole liter of 23.4% NaCl solution! But I'll stick with B. 16.82ml, just to be on the safe side.

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Blair

1 year ago

I'm not sure, but I'll go with D) 58.5ml just to be sure.

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Eden

1 year ago

C) 23.4ml seems like the right amount to me.

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Flo

1 year ago

I'm going with B) 16.82ml as well, better safe than sorry.

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Tequila

1 year ago

I think A) 12.82ml would be enough for the solution.

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Lacresha

1 year ago

Ah, the good ol' mEq to ml conversion! I'm going to have to go with A. 12.82ml, just to mix things up a bit.

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Martina

1 year ago

User 2: I agree, A) 12.82ml sounds right.

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Glory

1 year ago

User 1: I think it's A) 12.82ml.

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Ilona

1 year ago

Hmm, let me think this through... I'm going to go with C. 23.4ml, just because it's the same as the concentration of the NaCl solution.

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Zona

1 year ago

Wow, this question is a real brain-teaser! I'm going to go with option D. 58.5ml, just to see what happens.

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Janella

1 year ago

I think the answer is B. 16.82ml, since the question asks for the volume of 23.4% NaCl needed to make 1/3 NS 1 liter bag with 51.3 mEq of NaCl.

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Estrella

1 year ago

I think the answer is B. 16.82ml, since the question asks for the volume of 23.4% NaCl needed to make 1/3 NS 1 liter bag with 51.3 mEq of NaCl.

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Madalyn

1 year ago

E) 10ml

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Peggie

1 year ago

D) 58.5ml

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Natalie

1 year ago

C) 23.4ml

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Esteban

1 year ago

B) 16.82ml

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Franchesca

1 year ago

A) 12.82ml

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Ruthann

1 year ago

I calculated it again, and I still think it's A) 12.82ml because of the molecular weight of Na and Cl.

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Percy

1 year ago

I disagree, I believe the answer is D) 58.5ml.

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Ruthann

1 year ago

I think the answer is A) 12.82ml.

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