Dosage Calculation Practice Questions
with Certified Solutions
A patient has an order for Chloromycetin, 500 mg every 6 hours. The drug comes in 250 mg
capsules. What would the nurse administer?
2 tabs
A nurse is to administer 150 mg of a drug intramuscularly. The label on the multidose vials reads
100 mg/mL. How much would the nurse give?
1.5 mL
A nurse is to administer 30 mg of furosemide (Lasix) to a client with congestive heart failure
(CHF). The vial contains 40 mg/mL. Which is the correct dose to administer?
0.75 mL
The nurse is providing discharge teaching for a client who has been prescribed 600 mg of an oral
liquid medication. The mother shows the nurse the label of the medication, which reads: 250
mg/mL. The nurse would instruct the mother to give how many milliliters?
2.4 mL
A child is to receive 500 mg of an antibiotic suspension. The label on the bottle reads 250 mg/5
mL. The nurse should administer how much of the suspension in one dose?
10 mL
A health care provider orders 250 mg of an antibiotic suspension. The label on the suspension
reads "500 mg/5 mL." How much would the nurse administer?
,2.5 mL
The client is to be given ascorbic acid 1 g daily by mouth. The medication comes in a container
labeled, "Ascorbic Acid 250 mg tablets." How much will the nurse give?
4 tabs
convert grams to mg (Times by 1000)
= (1 gram)(1000)=1000mg
=1000mg/250mg= 4 tablets
The PCP orders amoxicillin 250 mg by mouth two times a day. The drug label reads
"Amoxicillin 125 mg/5 ml." How much will the nurse administer?
10 mL
A nurse is to administer 175 mg of a medication intramuscularly. The label on the multidose vial
states that the concentration is 100 mg/mL. What volume of the drug should the nurse
administer?
1.7 mL
The nurse is preparing to administer 80 mg of Solu-medrol intravenously (IV) to a client with
pneumonia. The vial states that it has 120 mg per 2 mL. The nurse would correctly draw up
which amount?
1.3 mL
The health care provider prescribes ascorbic acid 0.5 g daily. The drug label reads ascorbic
acid 250 mg. The nurse would administer how many tablets?
, 2 tabs
convert grams first
(0.5grams) (1000mg)= 500mg
= 500mg/250mg= 2 tablets
A client is being treated for congestive heart failure (CHF) and is to receive 0.5 milligrams of
digoxin, which is available in 250-microgram tablets. The nurse would correctly administer how
many tablets?
2 tabs
convert milligrams to MICROgrams= (0.5)(1000)
=500/250= 2 tablets
The nurse is to administer 25 mg of meperidine (Demerol). The vial states that it contains
meperidine 50mg/1 mL. How much medication should the nurse draw up for the ordered
dosage?
0.5 mL
A nurse needs to convert 3 fluid ounces to the metric system equivalent. The nurse performs the
calculation to find which result?
90 mL
1 ounce equals 29.5735 Milliliters
=30ml
with Certified Solutions
A patient has an order for Chloromycetin, 500 mg every 6 hours. The drug comes in 250 mg
capsules. What would the nurse administer?
2 tabs
A nurse is to administer 150 mg of a drug intramuscularly. The label on the multidose vials reads
100 mg/mL. How much would the nurse give?
1.5 mL
A nurse is to administer 30 mg of furosemide (Lasix) to a client with congestive heart failure
(CHF). The vial contains 40 mg/mL. Which is the correct dose to administer?
0.75 mL
The nurse is providing discharge teaching for a client who has been prescribed 600 mg of an oral
liquid medication. The mother shows the nurse the label of the medication, which reads: 250
mg/mL. The nurse would instruct the mother to give how many milliliters?
2.4 mL
A child is to receive 500 mg of an antibiotic suspension. The label on the bottle reads 250 mg/5
mL. The nurse should administer how much of the suspension in one dose?
10 mL
A health care provider orders 250 mg of an antibiotic suspension. The label on the suspension
reads "500 mg/5 mL." How much would the nurse administer?
,2.5 mL
The client is to be given ascorbic acid 1 g daily by mouth. The medication comes in a container
labeled, "Ascorbic Acid 250 mg tablets." How much will the nurse give?
4 tabs
convert grams to mg (Times by 1000)
= (1 gram)(1000)=1000mg
=1000mg/250mg= 4 tablets
The PCP orders amoxicillin 250 mg by mouth two times a day. The drug label reads
"Amoxicillin 125 mg/5 ml." How much will the nurse administer?
10 mL
A nurse is to administer 175 mg of a medication intramuscularly. The label on the multidose vial
states that the concentration is 100 mg/mL. What volume of the drug should the nurse
administer?
1.7 mL
The nurse is preparing to administer 80 mg of Solu-medrol intravenously (IV) to a client with
pneumonia. The vial states that it has 120 mg per 2 mL. The nurse would correctly draw up
which amount?
1.3 mL
The health care provider prescribes ascorbic acid 0.5 g daily. The drug label reads ascorbic
acid 250 mg. The nurse would administer how many tablets?
, 2 tabs
convert grams first
(0.5grams) (1000mg)= 500mg
= 500mg/250mg= 2 tablets
A client is being treated for congestive heart failure (CHF) and is to receive 0.5 milligrams of
digoxin, which is available in 250-microgram tablets. The nurse would correctly administer how
many tablets?
2 tabs
convert milligrams to MICROgrams= (0.5)(1000)
=500/250= 2 tablets
The nurse is to administer 25 mg of meperidine (Demerol). The vial states that it contains
meperidine 50mg/1 mL. How much medication should the nurse draw up for the ordered
dosage?
0.5 mL
A nurse needs to convert 3 fluid ounces to the metric system equivalent. The nurse performs the
calculation to find which result?
90 mL
1 ounce equals 29.5735 Milliliters
=30ml
