NU 155 ADVANCED DOSAGE
CALCULATIONS AND
PHARMACOLOGY EXAM QUESTIONS &
ANSWERS 100% GUARANTEE PASS |
GALEN COLLEGE OF NURSING
1. The healthcare provider orders a Heparin bolus of 80 units/kg followed by an infusion of 18
units/kg/hr. The patient weighs 187 lbs. The pharmacy supplies Heparin 25,000 units in 500
mL of D5W. What is the correct infusion rate in mL/hr?
A. 24 mL/hr
B. 32.4 mL/hr
C. 28.2 mL/hr
D. 30.6 mL/hr
Answer: D
Conceptual Explanation: First, convert weight: 187 lbs / 2.2 = 85 kg. Infusion rate: 85 kg *
18 units/kg/hr = 1,530 units/hr. Concentration: 25,000 units / 500 mL = 50 units/mL.
Rate: 1,530 units/hr / 50 units/mL = 30.6 mL/hr.
,2. An order is written for Dopamine at 5 mcg/kg/min. The patient weighs 212 lbs. The
concentration is 400 mg in 250 mL D5W. Calculate the flow rate in mL/hr. Round to the
nearest tenth.
A. 16.5 mL/hr
B. 17.8 mL/hr
C. 14.4 mL/hr
D. 18.1 mL/hr
Answer: D
Conceptual Explanation: Weight: .2 = 96.36 kg. Dose: 5 * 96.36 * 60 = 28,908
mcg/hr = 28.908 mg/hr. Concentration: 400 mg / 250 mL = 1.6 mg/mL. Rate: 28..6
= 18.067, rounds to 18.1 mL/hr.
3. A pediatric patient is to receive 15 mg/kg of a medication every 8 hours. The child weighs
44 lbs. The medication is available as 250 mg/5 mL. How many mL will the nurse administer
per dose?
A. 3 mL
B. 9 mL
C. 6 mL
D. 12 mL
Answer: C
, Conceptual Explanation: Weight: .2 = 20 kg. Dose: 20 kg * 15 mg/kg = 300 mg per
dose. Available: 250 mg / 5 mL = 50 mg/mL. Administration: 300 mg / 50 mg/mL = 6 mL.
4. The doctor orders 1 liter of Normal Saline to infuse at 150 mL/hr. The tubing has a drop
factor of 15 gtt/mL. Calculate the drops per minute (gtt/min).
A. 32 gtt/min
B. 38 gtt/min
C. 45 gtt/min
D. 50 gtt/min
Answer: B
Conceptual Explanation: Formula: (Volume in mL * Drop Factor) / Time in minutes. (150
mL * 15 gtt/mL) / 60 min = 2, = 37.5, which rounds to 38 gtt/min.
5. A patient is prescribed 0.75 grams of a medication available in 250 mg tablets. How many
tablets should the nurse administer?
A. 3 tablets
B. 2 tablets
C. 4 tablets
D. 1.5 tablets
Answer: A
CALCULATIONS AND
PHARMACOLOGY EXAM QUESTIONS &
ANSWERS 100% GUARANTEE PASS |
GALEN COLLEGE OF NURSING
1. The healthcare provider orders a Heparin bolus of 80 units/kg followed by an infusion of 18
units/kg/hr. The patient weighs 187 lbs. The pharmacy supplies Heparin 25,000 units in 500
mL of D5W. What is the correct infusion rate in mL/hr?
A. 24 mL/hr
B. 32.4 mL/hr
C. 28.2 mL/hr
D. 30.6 mL/hr
Answer: D
Conceptual Explanation: First, convert weight: 187 lbs / 2.2 = 85 kg. Infusion rate: 85 kg *
18 units/kg/hr = 1,530 units/hr. Concentration: 25,000 units / 500 mL = 50 units/mL.
Rate: 1,530 units/hr / 50 units/mL = 30.6 mL/hr.
,2. An order is written for Dopamine at 5 mcg/kg/min. The patient weighs 212 lbs. The
concentration is 400 mg in 250 mL D5W. Calculate the flow rate in mL/hr. Round to the
nearest tenth.
A. 16.5 mL/hr
B. 17.8 mL/hr
C. 14.4 mL/hr
D. 18.1 mL/hr
Answer: D
Conceptual Explanation: Weight: .2 = 96.36 kg. Dose: 5 * 96.36 * 60 = 28,908
mcg/hr = 28.908 mg/hr. Concentration: 400 mg / 250 mL = 1.6 mg/mL. Rate: 28..6
= 18.067, rounds to 18.1 mL/hr.
3. A pediatric patient is to receive 15 mg/kg of a medication every 8 hours. The child weighs
44 lbs. The medication is available as 250 mg/5 mL. How many mL will the nurse administer
per dose?
A. 3 mL
B. 9 mL
C. 6 mL
D. 12 mL
Answer: C
, Conceptual Explanation: Weight: .2 = 20 kg. Dose: 20 kg * 15 mg/kg = 300 mg per
dose. Available: 250 mg / 5 mL = 50 mg/mL. Administration: 300 mg / 50 mg/mL = 6 mL.
4. The doctor orders 1 liter of Normal Saline to infuse at 150 mL/hr. The tubing has a drop
factor of 15 gtt/mL. Calculate the drops per minute (gtt/min).
A. 32 gtt/min
B. 38 gtt/min
C. 45 gtt/min
D. 50 gtt/min
Answer: B
Conceptual Explanation: Formula: (Volume in mL * Drop Factor) / Time in minutes. (150
mL * 15 gtt/mL) / 60 min = 2, = 37.5, which rounds to 38 gtt/min.
5. A patient is prescribed 0.75 grams of a medication available in 250 mg tablets. How many
tablets should the nurse administer?
A. 3 tablets
B. 2 tablets
C. 4 tablets
D. 1.5 tablets
Answer: A
