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PTCB PTCE Exam - Topic 3 Question 14 Discussion

How many grams of NaCl are in 100ml of NS solution?
C) 0.9
A) 0.009
B) 0.09
D) 9.0

PTCB PTCE Exam - Topic 3 Question 14 Discussion

Actual exam question for PTCB's PTCE exam
Question #: 14
Topic #: 3
[All PTCE Questions]

How many grams of NaCl are in 100ml of NS solution?

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Suggested Answer: C

Normal saline is a 0.9 (w/v) solution. % w/v is the number of grams/100ml X 100


by Serina at May 08, 2022, 12:37 PM

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Tamie
8 months ago
Normal saline is 0.9% NaCl, so 9 grams makes sense.
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Julio
8 months ago
Totally agree, D is the right answer!
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Tiera
9 months ago
Wait, are you sure? That seems high.
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Nakisha
9 months ago
Definitely option D, 9.0 grams.
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Elvera
9 months ago
It's 9.0 grams in 100ml of NS solution!
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Janna
9 months ago
I practiced a similar question where we had to find grams in a solution, and I think it was around 9 grams for 100ml of NS.
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Raelene
9 months ago
I'm not entirely sure, but I remember something about converting percentages to grams.
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Taryn
9 months ago
I think normal saline is 0.9% NaCl, so that might help with the calculation.
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Louisa
9 months ago
I feel like I might be mixing up the units, but I think 0.9 grams sounds familiar for 100ml of saline.
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Detra
9 months ago
Okay, let's see here. I don't think the other options really capture the essence of machine learning and autonomy. I'm going to go with Option D and explain how the robot can use sensor data and planning to operate independently.
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Gabriele
9 months ago
I'm not sure about this one. I'll need to review my notes and try to recall the relevant concepts.
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Franklyn
10 months ago
Hmm, I'm not entirely sure about this one. I'll need to think it through carefully.
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