DOSAGE CALCULATION 155: NURSING FUNDAMENTALS COMPREHENSIVE PRACTICE EXAM 100 QUESTIONS WITH VERIFIED ANSWERS AND DETAILED RATIONALES

DOSAGE CALCULATION 155: NURSING
FUNDAMENTALS COMPREHENSIVE
PRACTICE EXAM 100 QUESTIONS
WITH VERIFIED ANSWERS AND
DETAILED RATIONALES


DOSAGE CALCULATION 155: NURSING FUNDAMENTALS
COMPREHENSIVE PRACTICE EXAM
100 QUESTIONS WITH VERIFIED ANSWERS AND DETAILED RATIONALES
BASED ON NCLEX-STYLE FORMAT & SAFE MEDICATION ADMINISTRATION
STANDARDS




SECTION 1: BASIC CONVERSIONS & EQUIVALENCIES (Questions 1-15)


[Reference: Open RN Nursing Skills 5.4 - Equivalencies]


Question 1
How many milliliters (mL) are in 1 teaspoon (tsp)?


A) 2 mL
B) 3 mL
C) 4 mL
D) 5 mL


Answer: D



1

,Rationale: 1 teaspoon = 5 mL. This is a standard household-to-metric equivalent
that must be memorized for accurate oral medication administration.


Question 2
A patient is to receive 1 tablespoon of a liquid medication. How many milliliters
should you administer?


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


Answer: C
Rationale: 1 tablespoon = 15 mL. This is equivalent to 3 teaspoons (3 x 5 mL = 15
mL).


Question 3
How many milliliters are in 1 ounce (oz)?


A) 15 mL
B) 20 mL
C) 30 mL
D) 60 mL


Answer: C
Rationale: 1 ounce = 30 mL. This conversion is essential for measuring liquid
medications and calculating intake and output.


Question 4
Convert 0.5 grams (g) to milligrams (mg).


2

,A) 5 mg
B) 50 mg
C) 500 mg
D) 5000 mg


Answer: C
Rationale: 1 gram = 1000 mg. To convert grams to milligrams, multiply by 1000:
0.5 g × 1000 = 500 mg.


Question 5
A patient weighs 70 kilograms (kg). Convert this weight to pounds (lb). (Round
to nearest whole number)


A) 140 lb
B) 150 lb
C) 154 lb
D) 160 lb


Answer: C
Rationale: 1 kg = 2.2 lb. 70 kg × 2.2 = 154 lb. This conversion is critical for
weight-based dosing.


Question 6
A medication is available as 0.25 mg. How many micrograms (mcg) is this?


A) 25 mcg
B) 250 mcg
C) 2500 mcg
D) 25,000 mcg

3

, Answer: B
Rationale: 1 mg = 1000 mcg. 0.25 mg × 1000 = 250 mcg. Precise conversion is
vital for high-alert medications like digoxin and fentanyl.


Question 7
An infant weighs 3,500 grams. Convert this weight to kilograms.


A) 0.35 kg
B) 3.5 kg
C) 35 kg
D) 350 kg


Answer: B
Rationale: 1 kg = 1000 g. To convert grams to kilograms, divide by 1000: 3500 ÷
1000 = 3.5 kg.


Question 8
A patient's intake includes 8 ounces of juice. How many milliliters should you
document?


A) 120 mL
B) 160 mL
C) 240 mL
D) 320 mL


Answer: C
Rationale: 1 oz = 30 mL. 8 oz × 30 = 240 mL.


Question 9

4