dosage calculation

Question 1

(D/H)x V = A

Answer 1

drug dose formula

Question 2

D

Answer 2

Desired dose

Question 3

H

Answer 3

dosage available

Question 4

V

Answer 4

volume the medication is available in

Question 5

A

Answer 5

amount of medication for administration

Question 6

D1 - ordered 150 mg, available 300mg/tab. How many tablets should be given

Answer 6

0.5 tabs

Question 7

D2 - ordered 10,000 units subQ, available 5,000 units. How many mL should be given?

Answer 7

2ml

Question 8

(mL of solution/ total hours) = mL/hr

Answer 8

formula for IV flow (mL/hr)

Question 9

I1 - 1,000 ml D5W to infuse over 3 hours. What will be the flow rate?

Answer 9

333 mL/hr

Question 10

I2 - infused 3 g of penicillin in 50 mL normal salineover 30 minutes

Answer 10

100mL/hr

Question 11

(mL of solution/ total minutes) x drop factor = gtt/min

Answer 11

formula for IV flow (gtt/min)

Question 12

ig 1 - 1,000mL of LR to infuse at 50mL/hr. DF - 5gtt/mL

Answer 12

4 gtt/min

Question 13

ig 2 - 100mL of metronidazole to infuse over 45 minutes. DF - 10 gtt/mL

Answer 13

22 gtt/min