Deck 8: Mathematical Calculations Used in Pharmacology

Question 1

A patient's weight is 68 kg.Which of the following represents the patient's weight in pounds?

A) 150 lb
B) 148 lb
C) 135 lb
D) 138 lb

Answer 1

150 lb

Question 2

Which of the following correctly expresses 2 L in ounces?

A) 20 oz
B) 66.6 oz
C) 30 oz
D) 55 oz

Answer 2

66.6 oz

Question 3

The nurse is recording intake and output for a patient at the end of the shift.The output was 1500 mL.Which of the following represents the metric equivalent in liters (L)?

A) 15 L
B) 150 L
C) 1.5 L
D) 0.15 L

Answer 3

1.5 L

Question 4

Which of the following is equal to 2 tablespoonfuls?

A) 30 mL
B) 15 mL
C) 10 mL
D) 5 mL

Question 5

A patient drinks 8 ounces of juice with his meal.Which of the following represents an equal amount in milliliters?

A) 80 mL
B) 800 mL
C) 260 mL
D) 240 mL

Question 6

Nurses have to memorize a great deal of information in clinical practice.When trying to memorize all the different units in the apothecary and metric systems,a nurse should do which of the following? (Select all that apply. )

A) Master the familiar units.
B) Learn equivalents in two systems.
C) Memorize all information.
D) Depend on other nurses.

Question 7

If there are 85 mg of medicine in 1 oz of solution,which of the following represents the number of grams in 8 oz?

A) 0.68 g
B) 6.8 g
C) 68 g
D) 6800 g

Question 8

Which of the following represents 180 lb in kilograms (rounded to the nearest tenth)?

A) 90.0 kg
B) 81.8 kg
C) 360 kg
D) 396 kg

Question 9

The patient has a temperature of 38.9° C.Which of the following represents this temperature in Fahrenheit?

A) 104° F
B) 102° F
C) 98.6° F
D) 97.2° F

Question 10

A patient weighs 100 kg.In pounds,this equals which of the following?

A) 220 lb
B) 45.5 lb
C) 200 lb
D) 50 lb

Question 11

If there are 10 grams of medicine in 120 mL of solution,which of the following represents the number of grams in 720 mL?

A) 35 g
B) 50 g
C) 60 g
D) 75 g

Question 12

Which of the following is equal to 1500 mcg?

A) 0.15 mg
B) 15 mg
C) 1.5 mg
D) 1,500,000 mg

Question 13

To convert grains to grams,and grams to grains,which of the following rules should a nurse apply? (Select all that apply. )

A) To convert grains to grams,divide by 15 or 16.
B) To convert grains to grams,add 15 or 16.
C) To convert grams to grains,multiply by 15 or 16.
D) To convert grams to grains,subtract by 15 or 16.

Question 14

A patient is on a medication that comes in a dosage of 1000 mcg.In milligrams,this dose is expressed as which of the following ?

A) 100 mg
B) 1 mg
C) 1000 mg
D) 10 mg

Question 15

Calculate the following: 1 kg = _____g.