1. Medical Mathematics

2. A resident is to receive 1 milligram of a medication per dose
A resident is to receive 1 milligram of a medication per dose. If a solution has 5 milligrams of the medication in 30 milliliters of solution, how much solution should the resident receive?
5 mg = mg
30 ml ml

3. A radiology patient needs to drink one half liter of contrast fluid prior to a procedure. How many 100 cc containers will the patient need to drink?
X o
1 cc = 1 ml
1000 ml = 1 L
0.5 Liters = 500 ml
500 ml = 5 containers
100 ml

4. The number of ml that a 300 cc container can hold is?
1 cc = 1 ml
300 cc = 300 ml

5. A premature infant weighing 875 grams weighs how many milligrams?
1 g = 1000 mg
875 g = 875,000 mg
X o

6. How many mm of gauze bandage is needed to cover a wound that is 4 cm in length?
1 cm = 10 mm
4 cm = 40 mm
X o

7. 5 milliliters is equal to 5 what?
ml = cc
5 ml = 5 cc

8. How many milliliters are in 2.5 liters?
1 L = 1000 ml
2.5 L = 2500 ml
x o

9. How many cc’s are in 0.5 liters of fluid?
1 L = 1000 ml
0.5 L = 500 ml
1 ml = 1 cc
500 ml = 500 cc
x o

10. Three yards of elastic bandage is needed to wrap an athlete’s ankle
Three yards of elastic bandage is needed to wrap an athlete’s ankle. How many meters of bandage will be used?
1 yd = m
3 yd = 2.75 m
3 yd = 36 in and 1 in = 2.54 cm
36 x 2.54 cm = cm = .914 m

11. The average youth brain weighs 30 ounces or how many Kg?
16 oz (1 lb) = 0.45 Kg
30 = lbs 16
1.875 lbs x .45 = 0.84 Kg
1 kg = 2.2 lbs
30/16 = lb ÷ = 0.85 Kg

12. Susie has been on a diet and has lost 5 Kilograms
Susie has been on a diet and has lost 5 Kilograms. How many pounds has she lost?
1 kg = 2.2 lbs
5 kg x 2.2 lbs = 11 lbs

13. Johnny weighed 10 lbs on his 2 month check-up
Johnny weighed 10 lbs on his 2 month check-up. How many kilograms did he weigh?
1 kg = 2.2 lbs
10 lbs ÷ 2.2 = 4.5 Kg
1 lb = 0.45 Kg
10 x 0.45 = 4.50 Kg

14. The capacity of the right atrium is approximately 2. 3 ounces
The capacity of the right atrium is approximately 2.3 ounces. What does this equal in cc’s?
1 oz = 30 ml
2.3 oz x 30 = 69 ml = 69 cc

15. How many ml of liquid medication can a tablespoon hold?
1 T = 15 ml

16. Which kitchen utensil is BEST to use when measuring 15 ml of cough syrup?
Tablespoon

17. What is the length in inches of a newborn baby measured to be 42 cm?
1 in = 2.54 cm
42 cm ÷ = 16.5 in

18. A surgical scar which measures 4.6 cm is how many inches long?
1 in = 2.54 cm
4.6 ÷ 2.54 = 1.8 in

19. A surgeon removes a 200 g tumor from a patient
A surgeon removes a 200 g tumor from a patient. How many ounces does this tumor weigh?
1 kg = 2.2 lbs
1000 g = 2.2 lbs
200 g = .44 lbs
1lb = 16 oz
.44 ÷ 16 = 7.04 oz
16 oz (1 lb) = 0.45 Kg = 450 g
200 ÷ 450 = .44 lbs
.44 ÷ 16 = 7.04

20. Approximately how many kilograms does a 200 pound patient weigh?
1 kg = 2.2 lbs
200 lbs ÷ 2.2 = 90.9 kg

21. How many kilograms are equal to 30 lbs?
1 kg = 2.2 lbs
X kg = 30 lbs
2.2 X = 30 lbs
X = 30÷2.2 = 13.6 kg