BSN215 Exam 2 Actual Exam Style V1 |
BSN 215 HESI RN Specialty Dosage
Calculation | Nightingale
1. A physician orders 0.5 g of an antibiotic orally every 12 hours. The medication is available
in 250 mg tablets. How many tablets should the nurse administer per dose?
A. 1 tablet
B. 0.5 tablets
C. 2 tablets
D. 4 tablets
Answer: C
Rationale: First, convert 0.5 g to milligrams by multiplying by 1,000, which equals 500 mg.
Next, divide the ordered dose of 500 mg by the available strength of 250 mg per tablet. This
calculation results in 2 tablets per dose, ensuring the patient receives the correct
medication amount.
2. A patient is prescribed 1,200 mL of 0.9% Normal Saline to infuse over 10 hours. What
should the nurse set the infusion pump to in mL/hr?
A. 100 mL/hr
B. 120 mL/hr
C. 125 mL/hr
,D. 150 mL/hr
Answer: B
Rationale: To find the hourly rate, divide the total volume of 1,200 mL by the total time of
10 hours. The result is 120 mL per hour, which is a standard calculation for intravenous
fluid administration. Always verify the pump settings against the calculation to prevent
fluid overload or dehydration.
3. The healthcare provider orders Heparin 5,000 units subcutaneously. The vial is labeled
10,000 units/mL. How many mL should the nurse draw up?
A. 2 mL
B. 1 mL
C. 0.5 mL
D. 0.25 mL
Answer: C
Rationale: Divide the desired dose of 5,000 units by the concentration on hand, which is
10,000 units per mL. The resulting volume to be administered is 0.5 mL. Using a TB syringe
for such small volumes ensures accuracy and adherence to safety protocols for high-alert
medications.
4. A pediatric patient weighs 44 lbs. The ordered dose is 15 mg/kg. How many mg should be
administered?
A. 660 mg
, B. 150 mg
C. 440 mg
D. 300 mg
Answer: D
Rationale: First, convert the weight from pounds to kilograms by dividing 44 lbs by 2.2,
which equals 20 kg. Then, multiply the patient weight of 20 kg by the ordered dose of 15
mg/kg. The final calculated dose is 300 mg, which is critical for pediatric safety.
5. The order is for 1 liter of D5W to run at 125 mL/hr. How many hours will this IV bag last?
A. 4 hours
B. 10 hours
C. 12 hours
D. 8 hours
Answer: D
Rationale: Convert the 1 liter volume to 1,000 mL to standardize units for calculation.
Divide the total volume of 1,000 mL by the infusion rate of 125 mL/hr. The result shows
that the IV bag will last exactly 8 hours before needing replacement.
6. A provider orders Digoxin 0.125 mg IV push. The medication is available in 0.5 mg/2 mL.
How many mL will the nurse administer?
A. 0.5 mL
BSN 215 HESI RN Specialty Dosage
Calculation | Nightingale
1. A physician orders 0.5 g of an antibiotic orally every 12 hours. The medication is available
in 250 mg tablets. How many tablets should the nurse administer per dose?
A. 1 tablet
B. 0.5 tablets
C. 2 tablets
D. 4 tablets
Answer: C
Rationale: First, convert 0.5 g to milligrams by multiplying by 1,000, which equals 500 mg.
Next, divide the ordered dose of 500 mg by the available strength of 250 mg per tablet. This
calculation results in 2 tablets per dose, ensuring the patient receives the correct
medication amount.
2. A patient is prescribed 1,200 mL of 0.9% Normal Saline to infuse over 10 hours. What
should the nurse set the infusion pump to in mL/hr?
A. 100 mL/hr
B. 120 mL/hr
C. 125 mL/hr
,D. 150 mL/hr
Answer: B
Rationale: To find the hourly rate, divide the total volume of 1,200 mL by the total time of
10 hours. The result is 120 mL per hour, which is a standard calculation for intravenous
fluid administration. Always verify the pump settings against the calculation to prevent
fluid overload or dehydration.
3. The healthcare provider orders Heparin 5,000 units subcutaneously. The vial is labeled
10,000 units/mL. How many mL should the nurse draw up?
A. 2 mL
B. 1 mL
C. 0.5 mL
D. 0.25 mL
Answer: C
Rationale: Divide the desired dose of 5,000 units by the concentration on hand, which is
10,000 units per mL. The resulting volume to be administered is 0.5 mL. Using a TB syringe
for such small volumes ensures accuracy and adherence to safety protocols for high-alert
medications.
4. A pediatric patient weighs 44 lbs. The ordered dose is 15 mg/kg. How many mg should be
administered?
A. 660 mg
, B. 150 mg
C. 440 mg
D. 300 mg
Answer: D
Rationale: First, convert the weight from pounds to kilograms by dividing 44 lbs by 2.2,
which equals 20 kg. Then, multiply the patient weight of 20 kg by the ordered dose of 15
mg/kg. The final calculated dose is 300 mg, which is critical for pediatric safety.
5. The order is for 1 liter of D5W to run at 125 mL/hr. How many hours will this IV bag last?
A. 4 hours
B. 10 hours
C. 12 hours
D. 8 hours
Answer: D
Rationale: Convert the 1 liter volume to 1,000 mL to standardize units for calculation.
Divide the total volume of 1,000 mL by the infusion rate of 125 mL/hr. The result shows
that the IV bag will last exactly 8 hours before needing replacement.
6. A provider orders Digoxin 0.125 mg IV push. The medication is available in 0.5 mg/2 mL.
How many mL will the nurse administer?
A. 0.5 mL
