Deal of The Day! Hurry Up, Grab the Special Discount - Save 25% - Ends In 00:00:00 Coupon code: SAVE25
Welcome to Pass4Success

- Free Preparation Discussions
Mail Us support@pass4success.com
Location US
Mob_nav_barsMENU

PTCB PTCE Exam - Topic 1 Question 128 Discussion

What volume, inmL, of morphine sulfate that comes in10 mL vials at a concentration of 5 mg/mLwill be needed to fill an order for25 mg?
C) 2.5
A) 0.5
B) 2
D) 5

PTCB PTCE Exam - Topic 1 Question 128 Discussion

Actual exam question for PTCB's PTCE exam
Question #: 128
Topic #: 1
[All PTCE Questions]

What volume, inmL, of morphine sulfate that comes in10 mL vials at a concentration of 5 mg/mLwill be needed to fill an order for25 mg?

Show Suggested Answer Hide Answer
Suggested Answer: C

Comprehensive and Detailed Step-by-Step Explanation:

Step 1: Use the formula

Explanation of Answer Choices:C. 2.5Correct.2.5 mL provides the required25 mg dose.A. 0.5 Incorrect. Too low.B. 2 Incorrect. Under-dose.D. 5 Incorrect. Over-dose.

Reference:

USP <795>: Pharmaceutical Calculations

PTCB Exam: Dosage Conversions


by Na at Jun 20, 2026, 09:13 AM

Limited Time Offer

25%

Off

Get Premium PTCE Questions as Interactive Web-Based Practice Test or PDF

Contribute your Thoughts:

0/2000 characters
Submit Cancel
Lonna
3 days ago
I remember the formula! 25 mg divided by 5 mg/mL equals 5 mL. So, D is correct!
upvoted 0 times
...
Jutta
8 days ago
I feel like I need to convert the dosage first. 25 mg is a lot.
upvoted 0 times
...
Kanisha
14 days ago
This question is tricky! I think it's about calculating the right volume.
upvoted 0 times
...
Reuben
19 days ago
Agreed, 5 mL is the right answer!
upvoted 0 times
...
Leandro
24 days ago
Wait, are we sure about the math here?
upvoted 0 times
...
Nichelle
29 days ago
I thought it would be more than that!
upvoted 0 times
...
Ozell
1 month ago
Definitely B, 2 mL is way too low.
upvoted 0 times
...
Daniel
1 month ago
It's 5 mL for 25 mg.
upvoted 0 times
...
Soledad
1 month ago
I feel like I might be overthinking this. If we need 25 mg and the concentration is 5 mg/mL, isn't it just 5 mL?
upvoted 0 times
...
Casie
2 months ago
I practiced a similar question last week, and I think the answer was 2.5 mL for a different drug. Could that be the right approach here too?
upvoted 0 times
...
Bobbye
2 months ago
I think we need to divide the total mg needed by the concentration, so 25 mg divided by 5 mg/mL? That sounds like 5 mL.
upvoted 0 times
...
Arthur
2 months ago
I remember something about calculating doses, but I'm not sure how to convert mg to mL correctly.
upvoted 0 times
...

Save Cancel