Pharmacology Chapter 8 and 9

Question 1

Grams to milligrams

Answer 1

Multiply by 1,000

Question 2

Milligrams to grams

Answer 2

Divide by 1,000

Question 3

lbs to kg

Answer 3

Divide lbs by 2.2

Question 4

Methods for calculating drug dosages

Answer 4

Ratio proportion, formulation, dimensional analysis and fractions

Question 5

Ratio proportion

Answer 5

1. Write ratio that you know
2. Write the ratio you need to solve for
3. Write proportion
4. Cross-multiply to discover what x equals
5. Divide both sides by proportion to isolate x.

Question 6

400mg:1 mL= 200mg:x

Answer 6

x= 0.5

Question 7

Calculating pediatric dosages

Answer 7

1. Convert lbs to kg (divide lbs by 2.2)
2. multiply weight in kg by the order

Question 8

Electronic Regulator pumps

Answer 8

Total mL ordered/total time ordered in hours=
mL/hour

Question 9

Manual IV sets

Answer 9

1. Convert hours to minutes and set up equation
2. total volume (V) to be infused/total time in minutes * drop factor (D) (gtt)/mL= rate of flow (gtt)/min