BIOD351
Dosing Calculations
Final Test Exam Review (Qns & Ans)
2025
1. A patient requires 500 mg of a medication. The available
concentration is 250 mg per 5 mL. How many milliliters should
be administered?
- A. 5 mL
- B. 10 mL
- C. 15 mL
- D. 20 mL
ANS: B. 10 mL
©/2025
, Rationale: The concentration is 250 mg per 5 mL, so to
calculate the volume needed for 500 mg: (500 mg / 250 mg) × 5
mL = 10 mL.
Fill-in-the-Blank Questions
2. A medication has a half-life of 4 hours. If a patient receives a
dose of 200 mg, how much of the medication will remain in the
body after 8 hours?
ANS: 50 mg
Rationale: After one half-life (4 hours), 100 mg remains.
After a second half-life (8 hours), 50 mg remains (half of 100
mg).
3. If a drug's dosage is 5 mg/kg/day and a patient weighs 70 kg,
the total daily dose is __________ mg.
ANS: 350 mg
Rationale: The dose is calculated as 5 mg/kg × 70 kg = 350
mg per day.
True/False Questions
4. True or False: The bioavailability of a drug administered
intravenously (IV) is 100%.
©/2025
, ANS: True
Rationale: IV administration results in 100% bioavailability
because the drug is directly introduced into the bloodstream.
5. True or False: A higher creatinine clearance indicates better
kidney function.
ANS: True
Rationale: Creatinine clearance measures kidney function,
with higher values indicating better filtration and kidney function.
Multiple Response Questions
6. Which of the following factors influence the dosing of
medications in elderly patients? (Select all that apply)
- A. Renal function
- B. Body composition
- C. Hepatic function
- D. Hair color
ANSs: A, B, C
©/2025
, Rationale: Renal function, body composition, and hepatic
function all influence drug dosing in elderly patients. Hair color
does not affect dosing.
7. Which of the following units are commonly used to measure
medication dosages? (Select all that apply)
- A. Milligrams (mg)
- B. Grams (g)
- C. Milliliters (mL)
- D. Liters (L)
ANSs: A, B, C, D
Rationale: Medication dosages are commonly measured in
milligrams (mg), grams (g), milliliters (mL), and liters (L).
Additional Questions
8. Multiple Choice: A patient is prescribed 1.5 g of a medication.
The available tablets are 500 mg each. How many tablets should
the patient take?
- A. 2 tablets
- B. 3 tablets
©/2025
Dosing Calculations
Final Test Exam Review (Qns & Ans)
2025
1. A patient requires 500 mg of a medication. The available
concentration is 250 mg per 5 mL. How many milliliters should
be administered?
- A. 5 mL
- B. 10 mL
- C. 15 mL
- D. 20 mL
ANS: B. 10 mL
©/2025
, Rationale: The concentration is 250 mg per 5 mL, so to
calculate the volume needed for 500 mg: (500 mg / 250 mg) × 5
mL = 10 mL.
Fill-in-the-Blank Questions
2. A medication has a half-life of 4 hours. If a patient receives a
dose of 200 mg, how much of the medication will remain in the
body after 8 hours?
ANS: 50 mg
Rationale: After one half-life (4 hours), 100 mg remains.
After a second half-life (8 hours), 50 mg remains (half of 100
mg).
3. If a drug's dosage is 5 mg/kg/day and a patient weighs 70 kg,
the total daily dose is __________ mg.
ANS: 350 mg
Rationale: The dose is calculated as 5 mg/kg × 70 kg = 350
mg per day.
True/False Questions
4. True or False: The bioavailability of a drug administered
intravenously (IV) is 100%.
©/2025
, ANS: True
Rationale: IV administration results in 100% bioavailability
because the drug is directly introduced into the bloodstream.
5. True or False: A higher creatinine clearance indicates better
kidney function.
ANS: True
Rationale: Creatinine clearance measures kidney function,
with higher values indicating better filtration and kidney function.
Multiple Response Questions
6. Which of the following factors influence the dosing of
medications in elderly patients? (Select all that apply)
- A. Renal function
- B. Body composition
- C. Hepatic function
- D. Hair color
ANSs: A, B, C
©/2025
, Rationale: Renal function, body composition, and hepatic
function all influence drug dosing in elderly patients. Hair color
does not affect dosing.
7. Which of the following units are commonly used to measure
medication dosages? (Select all that apply)
- A. Milligrams (mg)
- B. Grams (g)
- C. Milliliters (mL)
- D. Liters (L)
ANSs: A, B, C, D
Rationale: Medication dosages are commonly measured in
milligrams (mg), grams (g), milliliters (mL), and liters (L).
Additional Questions
8. Multiple Choice: A patient is prescribed 1.5 g of a medication.
The available tablets are 500 mg each. How many tablets should
the patient take?
- A. 2 tablets
- B. 3 tablets
©/2025
