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NABP NAPLEX Exam - Topic 7 Question 34 Discussion

Actual exam question for NABP's NAPLEX exam
Question #: 34
Topic #: 7
[All NAPLEX Questions]

Calculate the Osmolarity of 3% hypertonic saline?

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Suggested Answer: A

Osmolarity = mOsmol/L = (wt of substance (g/mL))/(MW(g/mol)) (# of particles) 1000 Weight of substance: 3% = (3g/100mL) = (xg/1000mL), x = 30g/L. # of particles NaCL: Na+ + Cl- (2 particles). mOsmol/L = (30g/L)/ (58.5g/mol) 2 1000 = 1,025.6. The answer is 1026 mOsmol/L.


by Paris at May 07, 2022, 01:11 PM

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Belen
4 months ago
565 mOsm/L? That sounds way off to me!
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Johnson
4 months ago
I thought it was around 287 mOsm/L, but I guess not!
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Juliann
4 months ago
Wait, how did you get that number? Seems high.
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Brandon
4 months ago
Totally agree, that's the right answer!
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Luis
5 months ago
It's 1026 mOsmol/L for 3% saline!
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Marcos
5 months ago
I feel like the answer is around 300 mOsm/L, but I can't remember if that's for 0.9% or 3% saline.
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Avery
5 months ago
If I remember correctly, we need to consider the dissociation of sodium and chloride ions in saline. That might help narrow down the options.
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Maynard
5 months ago
I think I practiced a similar question about saline concentrations, but I can't recall the exact formula we used.
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Stevie
5 months ago
I remember we calculated osmolarity in class, but I'm not sure how to apply it to saline solutions.
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Kyoko
5 months ago
Hmm, I'm a bit confused on the difference between a composition member and a sub-controller. I'll need to review that concept again.
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Tracey
5 months ago
Gap analysis... I'm drawing a blank on the specifics, but I know it's an important part of the benchmarking process. I'll have to review my notes to refresh my memory on this one.
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Cristal
5 months ago
I've got this! The Scrum Master and Product Owner should be looking for team members with the traits in option B - collaborative, self-organizing, and negotiation skills. That's the perfect combination for an effective Scrum team.
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Venita
5 months ago
Hmm, I'm a bit unsure about this one. Is Data Confidentiality the right answer since we need to secure the message content? Or is Data Origin Authentication better for verifying the source?
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Ivan
5 months ago
I'm a bit unsure about this one. The image doesn't seem to provide a lot of obvious clues, so I'll need to carefully read through the options and think about what would logically indicate a case is in progress.
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