NR 324 Med-Surg Dosage Calculation 2026/2027
COMPLETE ACCURATE ACTUAL QUIZ&ANS WITH
RATIONALES |ALREADY GRADED A+|NEWEST
VERSION |BEST DOCUMENT FOR EXAM
1. A nurse is preparing to administer heparin 7,500 units subcutaneously. The vial is labeled
heparin 10,000 units/mL. How many mL should the nurse administer?
a. 0.5 mL
b. 0.75 mL
c. 1 mL
d. 1.5 mL
Correct Answer: B
Expert Rationale:
To calculate dosage:
Desired dose ÷ Available dose × Volume
7,500 ÷ 10,000 × 1 mL = 0.75 mL
The nurse should administer 0.75 mL subcutaneously.
NCLEX focus: safe medication administration and dosage calculation.
DIF: Application
REF: Heparin Dosage Calculations
OBJ: Calculate injectable medication dosages
TOP: Pharmacological Therapies
2. A provider prescribes amoxicillin 500 mg PO every 8 hr. Available is amoxicillin 250 mg
capsules. How many capsules should the nurse administer per dose?
a. 1 capsule
b. 2 capsules
c. 3 capsules
d. 4 capsules
Correct Answer: B
,Expert Rationale:
500 mg ordered ÷ 250 mg available = 2 capsules
The nurse should administer 2 capsules for each dose.
NCLEX focus: oral medication calculation.
DIF: Application
REF: Oral Dosage Calculations
OBJ: Calculate oral medication doses
TOP: Pharmacological Therapies
3. A nurse is to infuse 1,000 mL of 0.9% sodium chloride over 8 hr using an infusion pump.
What rate should the nurse set the pump at?
a. 100 mL/hr
b. 115 mL/hr
c. 125 mL/hr
d. 150 mL/hr
Correct Answer: C
Expert Rationale:
1,000 mL ÷ 8 hr = 125 mL/hr
The nurse should set the IV pump to deliver 125 mL/hr.
NCLEX focus: IV infusion calculations.
DIF: Application
REF: Intravenous Therapy
OBJ: Calculate IV infusion rates
TOP: Reduction of Risk Potential
4. A nurse is preparing insulin glargine 24 units subcutaneously. Available insulin is U-100.
How many mL should the nurse administer?
a. 0.12 mL
b. 0.2 mL
c. 0.24 mL
d. 0.5 mL
Correct Answer: C
,Expert Rationale:
U-100 insulin contains 100 units/mL.
24 units ÷ 100 units = 0.24 mL
The nurse should administer 0.24 mL.
NCLEX focus: insulin dosage calculations.
DIF: Application
REF: Insulin Administration
OBJ: Calculate insulin dosages
TOP: Pharmacological Therapies
5. A nurse is preparing to administer digoxin 0.125 mg PO. Available is digoxin 250 mcg
tablets. How many tablets should the nurse administer?
a. 0.25 tablet
b. 0.5 tablet
c. 1 tablet
d. 2 tablets
Correct Answer: B
Expert Rationale:
Convert mg to mcg:
0.125 mg = 125 mcg
125 mcg ÷ 250 mcg = 0.5 tablet
The nurse should administer one-half tablet.
NCLEX focus: metric conversions in medication administration.
DIF: Application
REF: Digoxin Dosage
OBJ: Convert between metric units
TOP: Pharmacological Therapies
6. A nurse is preparing to infuse 500 mL of lactated Ringer’s over 4 hr using tubing with a
drop factor of 15 gtt/mL. How many gtt/min should the nurse administer?
a. 25 gtt/min
b. 31 gtt/min
, c. 42 gtt/min
d. 50 gtt/min
Correct Answer: B
Expert Rationale:
Formula:
(mL × drop factor) ÷ minutes
500 × 15 = 7,500
4 hr = 240 min
7,500 ÷ 240 = 31.25
Round to 31 gtt/min.
NCLEX focus: gravity IV flow calculations.
DIF: Application
REF: IV Flow Rate Calculations
OBJ: Calculate manual infusion rates
TOP: Reduction of Risk Potential
7. A nurse is preparing cefazolin 1 g IV. Available is cefazolin 500 mg/vial. How many vials
should the nurse reconstitute?
a. 1 vial
b. 1.5 vials
c. 2 vials
d. 3 vials
Correct Answer: C
Expert Rationale:
1 g = 1,000 mg
1,000 mg ÷ 500 mg = 2 vials
The nurse must prepare 2 vials.
NCLEX focus: reconstitution and medication preparation.
DIF: Application
REF: Injectable Medication Preparation
COMPLETE ACCURATE ACTUAL QUIZ&ANS WITH
RATIONALES |ALREADY GRADED A+|NEWEST
VERSION |BEST DOCUMENT FOR EXAM
1. A nurse is preparing to administer heparin 7,500 units subcutaneously. The vial is labeled
heparin 10,000 units/mL. How many mL should the nurse administer?
a. 0.5 mL
b. 0.75 mL
c. 1 mL
d. 1.5 mL
Correct Answer: B
Expert Rationale:
To calculate dosage:
Desired dose ÷ Available dose × Volume
7,500 ÷ 10,000 × 1 mL = 0.75 mL
The nurse should administer 0.75 mL subcutaneously.
NCLEX focus: safe medication administration and dosage calculation.
DIF: Application
REF: Heparin Dosage Calculations
OBJ: Calculate injectable medication dosages
TOP: Pharmacological Therapies
2. A provider prescribes amoxicillin 500 mg PO every 8 hr. Available is amoxicillin 250 mg
capsules. How many capsules should the nurse administer per dose?
a. 1 capsule
b. 2 capsules
c. 3 capsules
d. 4 capsules
Correct Answer: B
,Expert Rationale:
500 mg ordered ÷ 250 mg available = 2 capsules
The nurse should administer 2 capsules for each dose.
NCLEX focus: oral medication calculation.
DIF: Application
REF: Oral Dosage Calculations
OBJ: Calculate oral medication doses
TOP: Pharmacological Therapies
3. A nurse is to infuse 1,000 mL of 0.9% sodium chloride over 8 hr using an infusion pump.
What rate should the nurse set the pump at?
a. 100 mL/hr
b. 115 mL/hr
c. 125 mL/hr
d. 150 mL/hr
Correct Answer: C
Expert Rationale:
1,000 mL ÷ 8 hr = 125 mL/hr
The nurse should set the IV pump to deliver 125 mL/hr.
NCLEX focus: IV infusion calculations.
DIF: Application
REF: Intravenous Therapy
OBJ: Calculate IV infusion rates
TOP: Reduction of Risk Potential
4. A nurse is preparing insulin glargine 24 units subcutaneously. Available insulin is U-100.
How many mL should the nurse administer?
a. 0.12 mL
b. 0.2 mL
c. 0.24 mL
d. 0.5 mL
Correct Answer: C
,Expert Rationale:
U-100 insulin contains 100 units/mL.
24 units ÷ 100 units = 0.24 mL
The nurse should administer 0.24 mL.
NCLEX focus: insulin dosage calculations.
DIF: Application
REF: Insulin Administration
OBJ: Calculate insulin dosages
TOP: Pharmacological Therapies
5. A nurse is preparing to administer digoxin 0.125 mg PO. Available is digoxin 250 mcg
tablets. How many tablets should the nurse administer?
a. 0.25 tablet
b. 0.5 tablet
c. 1 tablet
d. 2 tablets
Correct Answer: B
Expert Rationale:
Convert mg to mcg:
0.125 mg = 125 mcg
125 mcg ÷ 250 mcg = 0.5 tablet
The nurse should administer one-half tablet.
NCLEX focus: metric conversions in medication administration.
DIF: Application
REF: Digoxin Dosage
OBJ: Convert between metric units
TOP: Pharmacological Therapies
6. A nurse is preparing to infuse 500 mL of lactated Ringer’s over 4 hr using tubing with a
drop factor of 15 gtt/mL. How many gtt/min should the nurse administer?
a. 25 gtt/min
b. 31 gtt/min
, c. 42 gtt/min
d. 50 gtt/min
Correct Answer: B
Expert Rationale:
Formula:
(mL × drop factor) ÷ minutes
500 × 15 = 7,500
4 hr = 240 min
7,500 ÷ 240 = 31.25
Round to 31 gtt/min.
NCLEX focus: gravity IV flow calculations.
DIF: Application
REF: IV Flow Rate Calculations
OBJ: Calculate manual infusion rates
TOP: Reduction of Risk Potential
7. A nurse is preparing cefazolin 1 g IV. Available is cefazolin 500 mg/vial. How many vials
should the nurse reconstitute?
a. 1 vial
b. 1.5 vials
c. 2 vials
d. 3 vials
Correct Answer: C
Expert Rationale:
1 g = 1,000 mg
1,000 mg ÷ 500 mg = 2 vials
The nurse must prepare 2 vials.
NCLEX focus: reconstitution and medication preparation.
DIF: Application
REF: Injectable Medication Preparation
