Basic / John Larsen Med Math Questions And Answers. Latest .1. Problem type: Unit conversion + Dosage calculation
Medication: Fish oil, @
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PROBLEM
Mr. Larsen’s general practitioner advised him to take 2 g of fish oil per day. The capsules
Mr. Larsen purchased are 1,000 mg.
How many fish oil capsulesshould he take each day?
HINT
There are 1000 mg in one gram.
SAMPLE SOLUTION
1. Convert the doctor’s recommendation of 2 grams into milligrams.
2 g x 1000 mg = 2000 mg
1 g
2. Determine how many fish oil capsules Mr. Larsen should take to ingest 2000 mg.
1 capsule x 2000 mg = 2 capsules
1000 mg
ANSWER
Number: 2
Units: capsules
2. Problem type: Dosage calculation
Medication: Tramadol @ home
PROBLEM
Before his surgery, Mr. Larsen was taking tramadol, prescribed as 50 mg by mouth every 6
hours as needed for pain.
If he took every available dose in a 24hour period, how many mgof tramadol would he
ingest?
HINT
Start by figuring out how many doses Mr. Larsen would take in a single day.
SAMPLE SOLUTION
1. Determine how many times in 24 hours Mr. Larsen took a dose.
24 hours x 1 dose = 4 doses
6 hours
2. Multiply the number of doses by the number of milligrams per dose.
4 doses x 50 mg = 200 mg
1 dose
ANSWER
Number: 200
Units: mg
3. Problem type: Dosage calculation + Stock on hand
Medication: Atorvastatin @ hospital
PROBLEM
While in the hospital, the orders call for Mr. Larsen to take atorvastatin 20 mg, 1 tab, by
mouth once a day. However, the pharmacy only carries 10 mg tablets.
How many tablets of atorvastatinshould be administered to him?
HINT
You can use the equation below, where X is the number of tablets that should be
administered.
D (ordered dose) x Quantity = X
H (dose on hand)
SAMPLE SOLUTION
1. Determine what information you have.
D (ordered dose) = 20 mg
H (dose on hand) = 10 mg
Q (quantity) = 1 tablet
2. Plug into the equation and solve.
D (20 mg) x 1 tablet = X
H (10 mg)
X = 2 tablets
ANSWER
Number: 2
Units: tablets
4. Problem type: Dosage calculation + Stock on hand
Medication: Lisinopril @ hospital
PROBLEM
While in the hospital, the orders call for Mr. Larsen to take lisinopril 10 mg, 1 tab, by mouth
once a day. The pharmacy only stocks 5 mg tablets of lisinopril.
How many tablets of lisinoprilshould be administered to him?
HINT
You can use the equation below, where X is the number of tablets that should be
administered.
D (ordered dose) x Quantity = X
H (dose on hand)
SAMPLE SOLUTION
1. Determine what information you have.
D (ordered dose) = 10 mg
H (dose on hand) = 5 mg
Q (quantity) = 1 tablet [Show Less]