Calculation Practice MEMORIZE these conversions 1 oz 30ml 1 tsp 5ml 1 tbsp 15ml 1 Cup8 oz 22 lb 1 kg Metric conversions 1gm1000mg mcg to gm etc After fundamentals course ID: 475470
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Slide1
Medical Dosage
Calculation PracticeSlide2
MEMORIZE these conversions:
1 oz= 30ml
1 tsp= 5ml
1 tbsp= 15ml
1 Cup=8 oz
2.2 lb = 1 kg
Metric
conversions: 1gm=1000mg, mcg to gm, etc.
After fundamentals course-
will need
to know how to calculate IV drip ratesSlide3
Basic Directions
Read
each question
carefully
Often there is more than one step to figure out the
answer
Questions may have more info than you need to get the answer
Show your work
Determine what your goal is, especially to what unit the answer is supposed to be in-
i.e. -is it asking for the
per dose
amount or
daily
amount, for number of
mg
or number
tablets
, etc. in the answer?
Look at the answer and
see if it makes sense
-i.e.-rarely will you be giving someone 80 pills.Slide4
Resources
Read Potter & Perry, Fundamentals of Nursing, 8
th
edition, pages 574 to 577.
Purchase a dosage calculation book or program for nurses.
Go on line, search “medication dosage calculations” for resources on line.
Use basic algebra solving equationsSlide5
Practice Questions
Answers at end… Good luck!Slide6
#1
A client has an order for 125mcg of digoxin PO daily. How many milligrams will you administer to the client?Slide7
#2
A patient’s order for heparin is 50units/kg and the patient weighs 198 pounds. How many units of Heparin will the patient receive?Slide8
#3
The doctor has just order IV fluids of 1,000ml D5W with 20mEq Potassium to be infused over an 8 hour period. At what rate would you set the IV pump?Slide9
#4
The order reads
Isoniazid
300mg daily. The pharmacy supplies
Isoniazid
syrup 50mg/5ml. The nurse should administer _______ml per dose. Slide10
#5
The patient is to receive
Celestone
900 micrograms. You have a bottle of
Celestone
labeled 0.6mg/tablet. The patient will receive how many tablet(s) per dose? Slide11
#6
How many milliliters of cough syrup should a child receive if the dose is 3 ounces and the child’s weight is 27kg? Slide12
#7
Your patient’s order reads 7,500units of Heparin subcutaneously. Heparin comes in a 2ml vial of 5,000units/ml. How many milliliters of Heparin do you give
the patient?Slide13
#8
Order:
Ancef
1g/50ml IVPB Q4H, infuse over 30 minutes.
IV tubing is labeled 20 drops/ml.
Calculate the flow rate in drops per minute for this antibiotic. Slide14
#9
The MD orders Haldol 2mg by IM injection. You have a vial of Haldol labeled 5mg per 1ml. How many ml(s) would you administer? Slide15
#10
The patient is to receive
Gantrisin
50mg/kg daily in 4 divided doses. The patient weighs 44 pounds. How many mg(s) would the patient receive for a single dose?Slide16
Answers
0.125mg
4,500 units
125ml/hr
30ml per dose.
1.5 tablets
90mls
1.5mls
33.3
gtt
/min.
0.4ml
250mg/dose.