3. Multiple Step Calculations January 09, 2012
It may be necessary to convert from one unit to another first before
solving a dosage problem.
Steps:
1. Set up proportion
2. Convert to like units
3. Substitute converted unit into proportion
4. Cross multiply and solve.
Example: 240 mg are ordered. Medication is available in 2 grains/ 1 tablet.
How many tablets should be given?
For your warm up today begin writing this information in your notes.
Remember that you should have notebook paper in your note book.
Classwork problems 3
4. Multiple Step Calculations January 09, 2012
Example 2:
Ordered: 0.016 gm
Available: 4 mg/1 ml
How many ml should be given?
Classwork problems 4
5. Multiple Step Calculations January 09, 2012
Example 3:
Ordered: gr xss orally
Available: 0.3 gm/5cc
How many cc's should be given?
Classwork problems 5
6. Multiple Step Calculations January 09, 2012
Example 4:
Ordered: Two tablespoons of a liquid every 2 hours for 12 hours.
How many cc's of the drug will the client receive over the 12 hour period?
Classwork problems 6
7. Multiple Step Calculations January 09, 2012
Example 5:
A client is to receive 2 gm of a drug. The drug comes 500mg/5cc.
Each vial contains 10 cc's. How many vials would you need?
Classwork problems 7
