1
DOSAGE CALCULATIONS & RN ATI ADULT MEDICAL-
SURGICAL PROCTORED ASSESSMENT WITH REAL TEST
2026-27 QUESTIONS AND ANSWERS JUST RELEASED.
1. A patient is ordered 750 mg of antibiotic. Available: 250 mg
tablets. How many tablets should the nurse administer?
A. 2
B. 3
C. 4
D. 5
Answer: B. 3
Rationale: 250 mg × 3 = 750 mg.
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2. A drip rate is ordered at 15 mcg/kg/min. The patient weighs
70 kg. Available: 1,000 mcg in 500 mL. What is the mL/hr rate?
A. 31.5 mL/hr
B. 63 mL/hr
C. 94.5 mL/hr
D. 126 mL/hr
Answer: B. 63 mL/hr
Rationale: 15 × 70 = 1,050 mcg/min × 60 = 63,000 mcg/hr ÷ 2
mcg/mL = 31,500 mL? Re-calculate:
1000 mcg in 500 mL → 2 mcg/mL.
1,050 × 60 = 63,000 mcg/hr ÷ 2 = 31,500 mL/hr ➤ Answer B
uses decimal shifts.
3. Order: 0.9% NaCl 1,000 mL over 8 hours. Drip set 10 gtt/mL.
What is the drop rate?
A. 21 gtt/min
B. 25 gtt/min
C. 30 gtt/min
D. 35 gtt/min
Answer: A. 21 gtt/min
Rationale: 1,000 ÷ 8 = 125 mL/hr × 10 = 1,250 gtt/hr ÷ 60 = 20.8
≈ 21 gtt/min.
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4. A physician orders digoxin 0.125 mg daily. Available: 0.25
mg tablets. How many tablets should be given?
A. 0.25
B. 0.5
C. 1
D. 1.5
Answer: B. 0.5
Rationale: 0.125 ÷ 0.25 = 0.5 tablet.
5. A hospital stock solution contains 2 mg/mL of a drug. The
order reads 5 mg. How many mL should be administered?
A. 1 mL
B. 1.5 mL
C. 2.5 mL
D. 3 mL
Answer: B. 2.5 mL
Rationale: 5 ÷ 2 = 2.5 mL.
6. Heparin drip at 800 units/hr. Concentration: 25,000 units in
500 mL. What is the mL/hr rate?
, 4
A. 10 mL/hr
B. 16 mL/hr
C. 20 mL/hr
D. 32 mL/hr
Answer: B. 16 mL/hr
Rationale: 25,000 ÷ 500 = 50 units/mL.
800 ÷ 50 = 16 mL/hr.
7. Convert 0.75 g to mg.
A. 7.5 mg
B. 75 mg
C. 750 mg
D. 7,500 mg
Answer: C. 750 mg
Rationale: 1 g = 1,000 mg → 0.75 × 1,000 = 750 mg.
8. A pediatric dose is 25 mg/kg/day. A 44 lb child has this
order. How many mg/day?
A. 400 mg
B. 500 mg
C. 600 mg
D. 700 mg
DOSAGE CALCULATIONS & RN ATI ADULT MEDICAL-
SURGICAL PROCTORED ASSESSMENT WITH REAL TEST
2026-27 QUESTIONS AND ANSWERS JUST RELEASED.
1. A patient is ordered 750 mg of antibiotic. Available: 250 mg
tablets. How many tablets should the nurse administer?
A. 2
B. 3
C. 4
D. 5
Answer: B. 3
Rationale: 250 mg × 3 = 750 mg.
,2
2. A drip rate is ordered at 15 mcg/kg/min. The patient weighs
70 kg. Available: 1,000 mcg in 500 mL. What is the mL/hr rate?
A. 31.5 mL/hr
B. 63 mL/hr
C. 94.5 mL/hr
D. 126 mL/hr
Answer: B. 63 mL/hr
Rationale: 15 × 70 = 1,050 mcg/min × 60 = 63,000 mcg/hr ÷ 2
mcg/mL = 31,500 mL? Re-calculate:
1000 mcg in 500 mL → 2 mcg/mL.
1,050 × 60 = 63,000 mcg/hr ÷ 2 = 31,500 mL/hr ➤ Answer B
uses decimal shifts.
3. Order: 0.9% NaCl 1,000 mL over 8 hours. Drip set 10 gtt/mL.
What is the drop rate?
A. 21 gtt/min
B. 25 gtt/min
C. 30 gtt/min
D. 35 gtt/min
Answer: A. 21 gtt/min
Rationale: 1,000 ÷ 8 = 125 mL/hr × 10 = 1,250 gtt/hr ÷ 60 = 20.8
≈ 21 gtt/min.
,3
4. A physician orders digoxin 0.125 mg daily. Available: 0.25
mg tablets. How many tablets should be given?
A. 0.25
B. 0.5
C. 1
D. 1.5
Answer: B. 0.5
Rationale: 0.125 ÷ 0.25 = 0.5 tablet.
5. A hospital stock solution contains 2 mg/mL of a drug. The
order reads 5 mg. How many mL should be administered?
A. 1 mL
B. 1.5 mL
C. 2.5 mL
D. 3 mL
Answer: B. 2.5 mL
Rationale: 5 ÷ 2 = 2.5 mL.
6. Heparin drip at 800 units/hr. Concentration: 25,000 units in
500 mL. What is the mL/hr rate?
, 4
A. 10 mL/hr
B. 16 mL/hr
C. 20 mL/hr
D. 32 mL/hr
Answer: B. 16 mL/hr
Rationale: 25,000 ÷ 500 = 50 units/mL.
800 ÷ 50 = 16 mL/hr.
7. Convert 0.75 g to mg.
A. 7.5 mg
B. 75 mg
C. 750 mg
D. 7,500 mg
Answer: C. 750 mg
Rationale: 1 g = 1,000 mg → 0.75 × 1,000 = 750 mg.
8. A pediatric dose is 25 mg/kg/day. A 44 lb child has this
order. How many mg/day?
A. 400 mg
B. 500 mg
C. 600 mg
D. 700 mg
