NUR103: 100 Dosage Calculation Practice Problems/
Updated Questions with Correct Verified Answers
1. Convert 2.5 grams to milligrams.
• A. 25 mg
• B. 250 mg
• C. 2,500 mg
• D. 25,000 mg
Correct Answer: C
Rationale: To convert grams to milligrams, multiply by 1000
(move decimal point three places to the right). 2.5 g × 1000 =
2,500 mg.
2. Convert 150 pounds to kilograms.
• A. 68.2 kg
• B. 68.18 kg
• C. 68 kg
1
, • D. 70 kg
Correct Answer: B
Rationale: To convert pounds to kilograms, divide pounds by 2.2.
150 lb ÷ 2.2 = 68.18 kg. Round to the nearest hundredth.
3. Convert 500 mL to ounces.
• A. 15 oz
• B. 16.7 oz
• C. 17 oz
• D. 20 oz
Correct Answer: B
Rationale: 1 ounce = 30 mL. 500 mL ÷ 30 = 16.67 oz, rounded
to 16.7 oz.
4. Convert 2.5 mg to micrograms.
• A. 250 mcg
• B. 2,500 mcg
2
, • C. 25,000 mcg
• D. 250,000 mcg
Correct Answer: B
Rationale: 1 mg = 1000 mcg. 2.5 mg × 1000 = 2,500 mcg.
Moving the decimal three places right converts mg to mcg.
5. Convert 2500 mcg to milligrams.
• A. 2.5 mg
• B. 25 mg
• C. 250 mg
• D. 0.25 mg
Correct Answer: A
Rationale: To convert mcg to mg, divide by 1000. 2500 ÷ 1000
= 2.5 mg.
6. Convert 75 kg to pounds.
• A. 150 lb
3
, • B. 165 lb
• C. 170 lb
• D. 150.5 lb
Correct Answer: B
Rationale: To convert kilograms to pounds, multiply by 2.2. 75 kg
× 2.2 = 165 lb.
7. Convert 1 grain to milligrams.
• A. 60 mg
• B. 65 mg
• C. 50 mg
• D. 100 mg
Correct Answer: A
Rationale: 1 grain (gr) = 60 mg. This is a standard conversion
used in medication administration, particularly for opioids and
aspirin.
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Updated Questions with Correct Verified Answers
1. Convert 2.5 grams to milligrams.
• A. 25 mg
• B. 250 mg
• C. 2,500 mg
• D. 25,000 mg
Correct Answer: C
Rationale: To convert grams to milligrams, multiply by 1000
(move decimal point three places to the right). 2.5 g × 1000 =
2,500 mg.
2. Convert 150 pounds to kilograms.
• A. 68.2 kg
• B. 68.18 kg
• C. 68 kg
1
, • D. 70 kg
Correct Answer: B
Rationale: To convert pounds to kilograms, divide pounds by 2.2.
150 lb ÷ 2.2 = 68.18 kg. Round to the nearest hundredth.
3. Convert 500 mL to ounces.
• A. 15 oz
• B. 16.7 oz
• C. 17 oz
• D. 20 oz
Correct Answer: B
Rationale: 1 ounce = 30 mL. 500 mL ÷ 30 = 16.67 oz, rounded
to 16.7 oz.
4. Convert 2.5 mg to micrograms.
• A. 250 mcg
• B. 2,500 mcg
2
, • C. 25,000 mcg
• D. 250,000 mcg
Correct Answer: B
Rationale: 1 mg = 1000 mcg. 2.5 mg × 1000 = 2,500 mcg.
Moving the decimal three places right converts mg to mcg.
5. Convert 2500 mcg to milligrams.
• A. 2.5 mg
• B. 25 mg
• C. 250 mg
• D. 0.25 mg
Correct Answer: A
Rationale: To convert mcg to mg, divide by 1000. 2500 ÷ 1000
= 2.5 mg.
6. Convert 75 kg to pounds.
• A. 150 lb
3
, • B. 165 lb
• C. 170 lb
• D. 150.5 lb
Correct Answer: B
Rationale: To convert kilograms to pounds, multiply by 2.2. 75 kg
× 2.2 = 165 lb.
7. Convert 1 grain to milligrams.
• A. 60 mg
• B. 65 mg
• C. 50 mg
• D. 100 mg
Correct Answer: A
Rationale: 1 grain (gr) = 60 mg. This is a standard conversion
used in medication administration, particularly for opioids and
aspirin.
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