DOSAGE CALCULATIONS PRACTICAL NURSING MIDTERM ACTUAL
EXAM COMPLETE 200 QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) |ALREADY GRADED A+|
|BRAND NEW VERSION!!
QUESTIONS 1 - 200
1. The physician orders 500 mg of Amoxicillin PO. The medication is available as
250 mg/5 mL. How many mL will the nurse administer?
A. 2 mL
B. 5 mL
C. 10 mL
D. 15 mL
Correct Answer: C
Rationale: (Desired / Have) x Quantity = (500 mg / 250 mg) x 5 mL = 2 x 5 = 10 mL.
2. A patient is ordered to receive 650 mg of Acetaminophen. The bottle reads 325
mg/tablet. How many tablets will you give?
A. 0.5 tablet
B. 1 tablet
C. 1.5 tablets
D. 2 tablets
Correct Answer: D
Rationale: 650 mg / 325 mg per tablet = 2 tablets.
3. The order is for 0.5 g of a medication PO. The pharmacy sends 250 mg/tablet.
How many tablets will the nurse administer?
A. 1 tablet
B. 2 tablets
C. 3 tablets
D. 4 tablets
Correct Answer: B
Rationale: Convert grams to milligrams: 0.5 g = 500 mg. 500 mg / 250 mg per
tablet = 2 tablets.
4. A patient weighs 150 lbs. What is the patient's weight in kilograms? (Round to
nearest tenth)
1
,A. 68.2 kg
B. 68.0 kg
C. 70.5 kg
D. 65.9 kg
Correct Answer: A
Rationale: 1 kg = 2.2 lbs. 150 lbs / 2.2 = 68.18 kg, rounded to 68.2 kg.
5. The order reads: Heparin 5,000 units subcutaneously. The vial is labeled 10,000
units/mL. How many mL will the nurse draw up?
A. 0.5 mL
B. 2 mL
C. 0.2 mL
D. 5 mL
Correct Answer: A
Rationale: (5,000 units / 10,000 units) x 1 mL = 0.5 mL.
6. A patient is prescribed 40 mg of Furosemide IV push. The vial contains 10
mg/mL. How many mL will be administered?
A. 0.25 mL
B. 4 mL
C. 10 mL
D. 40 mL
Correct Answer: B
Rationale: 40 mg / 10 mg/mL = 4 mL.
7. The physician orders 1.2 million units of Penicillin G. The vial reads 600,000
units/mL. How many mL will you inject?
A. 0.5 mL
B. 1.0 mL
C. 1.5 mL
D. 2.0 mL
Correct Answer: D
Rationale: 1,200,000 units / 600,000 units/mL = 2 mL.
8. A patient needs 75 mg of a medication. The available concentration is 30
mg/mL. How many mL should the nurse administer?
A. 2 mL
B. 2.5 mL
2
,C. 3 mL
D. 3.5 mL
Correct Answer: B
Rationale: 75 mg / 30 mg/mL = 2.5 mL.
9. The order is for Digoxin 0.25 mg PO daily. The pharmacy provides 125 mcg
tablets. How many tablets will the nurse give?
A. 0.5 tablet
B. 1 tablet
C. 2 tablets
D. 3 tablets
Correct Answer: C
Rationale: Convert 0.25 mg to mcg: 0.25 mg x 1000 = 250 mcg. 250 mcg / 125 mcg
per tablet = 2 tablets.
10. A patient is ordered 2 L of oxygen via nasal cannula. The flow meter reads in
mL/min. What is the correct setting?
A. 2 mL/min
B. 20 mL/min
C. 200 mL/min
D. 2000 mL/min
Correct Answer: D
Rationale: 2 L = 2000 mL. Therefore, set at 2000 mL/min.
11. The physician orders 1000 mL of D5W to infuse over 8 hours. What is the
hourly infusion rate in mL/hr?
A. 80 mL/hr
B. 100 mL/hr
C. 125 mL/hr
D. 150 mL/hr
Correct Answer: C
Rationale: 1000 mL / 8 hours = 125 mL/hr.
12. A patient is to receive 500 mL of Normal Saline over 4 hours. The drop factor
is 20 gtt/mL. What is the drip rate in gtt/min?
A. 21 gtt/min
B. 31 gtt/min
C. 42 gtt/min
3
, D. 83 gtt/min
Correct Answer: C
Rationale: (500 mL x 20 gtt/mL) / (4 hours x 60 min) = 10, = 41.66,
rounded to 42 gtt/min.
13. The order is for Cefazolin 1 g IVPB. The vial is labeled 500 mg/2 mL. How many
mL will the nurse reconstitute?
A. 2 mL
B. 4 mL
C. 5 mL
D. 10 mL
Correct Answer: B
Rationale: 1 g = 1000 mg. 1000 mg / 500 mg x 2 mL = 4 mL.
14. A patient weighs 80 kg. The physician orders a drug at 2 mg/kg IV. What is the
total dose in mg?
A. 40 mg
B. 80 mg
C. 120 mg
D. 160 mg
Correct Answer: D
Rationale: 80 kg x 2 mg/kg = 160 mg.
15. A pediatric patient weighs 22 lbs. The order is for 10 mg/kg of a medication.
How many mg should the child receive?
A. 100 mg
B. 220 mg
C. 50 mg
D. 110 mg
Correct Answer: A
Rationale: Weight in kg: .2 = 10 kg. Dose: 10 kg x 10 mg/kg = 100 mg.
16. An IV bag contains 250 mL of fluid. The pump is set at 50 mL/hr. How many
hours will the bag last?
A. 2 hours
B. 3 hours
C. 4 hours
D. 5 hours
4
EXAM COMPLETE 200 QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) |ALREADY GRADED A+|
|BRAND NEW VERSION!!
QUESTIONS 1 - 200
1. The physician orders 500 mg of Amoxicillin PO. The medication is available as
250 mg/5 mL. How many mL will the nurse administer?
A. 2 mL
B. 5 mL
C. 10 mL
D. 15 mL
Correct Answer: C
Rationale: (Desired / Have) x Quantity = (500 mg / 250 mg) x 5 mL = 2 x 5 = 10 mL.
2. A patient is ordered to receive 650 mg of Acetaminophen. The bottle reads 325
mg/tablet. How many tablets will you give?
A. 0.5 tablet
B. 1 tablet
C. 1.5 tablets
D. 2 tablets
Correct Answer: D
Rationale: 650 mg / 325 mg per tablet = 2 tablets.
3. The order is for 0.5 g of a medication PO. The pharmacy sends 250 mg/tablet.
How many tablets will the nurse administer?
A. 1 tablet
B. 2 tablets
C. 3 tablets
D. 4 tablets
Correct Answer: B
Rationale: Convert grams to milligrams: 0.5 g = 500 mg. 500 mg / 250 mg per
tablet = 2 tablets.
4. A patient weighs 150 lbs. What is the patient's weight in kilograms? (Round to
nearest tenth)
1
,A. 68.2 kg
B. 68.0 kg
C. 70.5 kg
D. 65.9 kg
Correct Answer: A
Rationale: 1 kg = 2.2 lbs. 150 lbs / 2.2 = 68.18 kg, rounded to 68.2 kg.
5. The order reads: Heparin 5,000 units subcutaneously. The vial is labeled 10,000
units/mL. How many mL will the nurse draw up?
A. 0.5 mL
B. 2 mL
C. 0.2 mL
D. 5 mL
Correct Answer: A
Rationale: (5,000 units / 10,000 units) x 1 mL = 0.5 mL.
6. A patient is prescribed 40 mg of Furosemide IV push. The vial contains 10
mg/mL. How many mL will be administered?
A. 0.25 mL
B. 4 mL
C. 10 mL
D. 40 mL
Correct Answer: B
Rationale: 40 mg / 10 mg/mL = 4 mL.
7. The physician orders 1.2 million units of Penicillin G. The vial reads 600,000
units/mL. How many mL will you inject?
A. 0.5 mL
B. 1.0 mL
C. 1.5 mL
D. 2.0 mL
Correct Answer: D
Rationale: 1,200,000 units / 600,000 units/mL = 2 mL.
8. A patient needs 75 mg of a medication. The available concentration is 30
mg/mL. How many mL should the nurse administer?
A. 2 mL
B. 2.5 mL
2
,C. 3 mL
D. 3.5 mL
Correct Answer: B
Rationale: 75 mg / 30 mg/mL = 2.5 mL.
9. The order is for Digoxin 0.25 mg PO daily. The pharmacy provides 125 mcg
tablets. How many tablets will the nurse give?
A. 0.5 tablet
B. 1 tablet
C. 2 tablets
D. 3 tablets
Correct Answer: C
Rationale: Convert 0.25 mg to mcg: 0.25 mg x 1000 = 250 mcg. 250 mcg / 125 mcg
per tablet = 2 tablets.
10. A patient is ordered 2 L of oxygen via nasal cannula. The flow meter reads in
mL/min. What is the correct setting?
A. 2 mL/min
B. 20 mL/min
C. 200 mL/min
D. 2000 mL/min
Correct Answer: D
Rationale: 2 L = 2000 mL. Therefore, set at 2000 mL/min.
11. The physician orders 1000 mL of D5W to infuse over 8 hours. What is the
hourly infusion rate in mL/hr?
A. 80 mL/hr
B. 100 mL/hr
C. 125 mL/hr
D. 150 mL/hr
Correct Answer: C
Rationale: 1000 mL / 8 hours = 125 mL/hr.
12. A patient is to receive 500 mL of Normal Saline over 4 hours. The drop factor
is 20 gtt/mL. What is the drip rate in gtt/min?
A. 21 gtt/min
B. 31 gtt/min
C. 42 gtt/min
3
, D. 83 gtt/min
Correct Answer: C
Rationale: (500 mL x 20 gtt/mL) / (4 hours x 60 min) = 10, = 41.66,
rounded to 42 gtt/min.
13. The order is for Cefazolin 1 g IVPB. The vial is labeled 500 mg/2 mL. How many
mL will the nurse reconstitute?
A. 2 mL
B. 4 mL
C. 5 mL
D. 10 mL
Correct Answer: B
Rationale: 1 g = 1000 mg. 1000 mg / 500 mg x 2 mL = 4 mL.
14. A patient weighs 80 kg. The physician orders a drug at 2 mg/kg IV. What is the
total dose in mg?
A. 40 mg
B. 80 mg
C. 120 mg
D. 160 mg
Correct Answer: D
Rationale: 80 kg x 2 mg/kg = 160 mg.
15. A pediatric patient weighs 22 lbs. The order is for 10 mg/kg of a medication.
How many mg should the child receive?
A. 100 mg
B. 220 mg
C. 50 mg
D. 110 mg
Correct Answer: A
Rationale: Weight in kg: .2 = 10 kg. Dose: 10 kg x 10 mg/kg = 100 mg.
16. An IV bag contains 250 mL of fluid. The pump is set at 50 mL/hr. How many
hours will the bag last?
A. 2 hours
B. 3 hours
C. 4 hours
D. 5 hours
4
