Metric Conversions, Giving The Correct Amount For Injection, Calculating Infusion Times, Solution Strength Worksheet With Answers Page 5
ADVERTISEMENT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22LDU Maths, Stats and Numeracy Support
Giving the Correct Amount for Injection
You can use the following formula to calculate volumes for injection
Example:
Your patient has been prescribed
50mg
of pethidine as injection. The stock strength
available is
100mg
in
1ml.
How many
ml
do you give the patient?
Answer:
ml
Notice that prescription and stock units (mg) must be the same.
Try the following questions
1) A patient has been prescribed 2mg of Pethidine. The stock strength you have is
10mg/ml. How many ml do you give the patient?
2) 40 units of Insulin have been prescribed. It is dispensed as 100 units in 1ml. How
much do you give?
3) Ampoules of Morphine contain 10mg in 2ml. What volume must be drawn up to
give 8mg?
4) The patient needs 250 mcg of Drug X. You have 1 mg in 1 ml. How many ml do you
give?
5) 0.6mg of drug X is required. Stock is 0.4 mg in 2 ml. What volume do you give?
6) 0.25g of drug is ordered. Available stock on the ward is 500mg/5ml. Calculate the
volume to be drawn up for injection.
7) 0.1 ml is given; it should have been 0.01ml. How many times too much is this?
numeracy@mdx.ac.uk
Page
5
ADVERTISEMENT
0 votes
Related Articles
Related forms
Related Categories
Parent category: Education