DOSAGE CALCULATIONS EXAM SCRIPT
VERIFIED QUESTIONS AND SOLUTIONS
COMPLETE REVIEW MATERIAL
●● How many mcg in a mg?
Answer: 1000
●● Order: D5LR 1250 mL IV over 8 hours.
What is the infusion rate in mL/h?
Answer: Answer: 156 mL/h
Divide 1250 by 8
156.25 => 156
●● Order: Amoxil 200 mg q 8 h
Have: 50 mg/ml
Label: 20 to 40 mg/kg/day in divided doses every 8 hours.
,The patient weighs 10 kg. Is this order safe?
Answer: 1. First, calculate the minimum and maximum dose per day.
The minimum amount would be 200 mg. (20 x 10) The maximum
amount would be 400 mg. (40 x 10)
2. Now, since the dose is given every 8 hours, divide the minimum and
maximum by 3, since 3 doses can be given in one day (24 hours). The
minimum single dose is 66.7 mg, and the maximum single dose is 133.3
mg.
3. NO, the ordered dose is not safe. The doctor ordered 200 mg for a
single dose which is more than the maximum allowed single dose of
133.3 mg.
●● How many mL in a teaspoon (tsp)?
Answer: 5
●● How many grams are in a kilogram?
Answer: 1000
●● How many teaspoons are in a tablespoon?
Answer: 3
●● How many ounces are in a pound?
, Answer: 16
●● How many pounds are in a kilogram?
Answer: 2.2
●● Convert 21.3 kg to lbs.
Answer: 46.86
●● Tridil is infusing at 15 mL/hr on an infusion pump. The drug is
mixed 50 mg in 500 mL DsW. How many mcg/min is the patient
receiving?
Answer: Answer: 25 mcg/min
First, convert the 50 mg to mcg. 50 mg = 50,000 mcg
Now, how many mcg is in 1 mL?
50,000 mcg/500 mL = 100 mcg/mL
Now, how many mcg/hr is the pt receiving?
100 mcg x 15 mL = 1,500 mcg/hr
So, 1500 mcg/60 min = 25 mcg/min
VERIFIED QUESTIONS AND SOLUTIONS
COMPLETE REVIEW MATERIAL
●● How many mcg in a mg?
Answer: 1000
●● Order: D5LR 1250 mL IV over 8 hours.
What is the infusion rate in mL/h?
Answer: Answer: 156 mL/h
Divide 1250 by 8
156.25 => 156
●● Order: Amoxil 200 mg q 8 h
Have: 50 mg/ml
Label: 20 to 40 mg/kg/day in divided doses every 8 hours.
,The patient weighs 10 kg. Is this order safe?
Answer: 1. First, calculate the minimum and maximum dose per day.
The minimum amount would be 200 mg. (20 x 10) The maximum
amount would be 400 mg. (40 x 10)
2. Now, since the dose is given every 8 hours, divide the minimum and
maximum by 3, since 3 doses can be given in one day (24 hours). The
minimum single dose is 66.7 mg, and the maximum single dose is 133.3
mg.
3. NO, the ordered dose is not safe. The doctor ordered 200 mg for a
single dose which is more than the maximum allowed single dose of
133.3 mg.
●● How many mL in a teaspoon (tsp)?
Answer: 5
●● How many grams are in a kilogram?
Answer: 1000
●● How many teaspoons are in a tablespoon?
Answer: 3
●● How many ounces are in a pound?
, Answer: 16
●● How many pounds are in a kilogram?
Answer: 2.2
●● Convert 21.3 kg to lbs.
Answer: 46.86
●● Tridil is infusing at 15 mL/hr on an infusion pump. The drug is
mixed 50 mg in 500 mL DsW. How many mcg/min is the patient
receiving?
Answer: Answer: 25 mcg/min
First, convert the 50 mg to mcg. 50 mg = 50,000 mcg
Now, how many mcg is in 1 mL?
50,000 mcg/500 mL = 100 mcg/mL
Now, how many mcg/hr is the pt receiving?
100 mcg x 15 mL = 1,500 mcg/hr
So, 1500 mcg/60 min = 25 mcg/min
