Shadow Health Basic Med Math Bryana Patton
11/2/2018
1.Scenario: Mr. Larsen’s general practioner advised him to take 2g of fish oil per day. The capsule Mr. Larsen purchased are 1,000mg.
Question: How Many Fish Oil capsules should be take each day?
Work:
1.Convert the doctor’s recommendation of 2g into milligrams. 2gx1,000mg
1g=2,000mg
2.Determine how many fish pill capsules Mr. Larsen should take to ingest 2,000mg
1capsule
1,000mgx2,000mg=2capsules
Answer: 2 capsules
2.Scenario: Before his surgery, Mr. Larsen was taking Tramadol, prescribed as 50mg by mouth every 6 hours as needed for pain.
Question: If he took every available dose in 24 hours, how many mg of Tramadol would he ingest?
Work:
1.Determine how many times in 24 hours Mr. Larsen took a dose.
24hoursx1dose
6hours=4doses
2.Multiply the number of doses by the number of milligrams per dose.
4dosesx50mg
1dose=200mg
Answer: 200mg
3.Scenario: While in the hospital, the orders all for MR. Larsen to take atorvastatin 20mg, 1 tab, by mouth once a day. However, the pharmacy only carries 10 mg tablets.
Question: How many tablets of atorvastatin should be administered to him?
Work:
1.Determine what information you have.
D(ordereddose)=20mg
H(doseonhand)=10mg
Q(quantity)=1tablet
2.Plug into the equation and solve.This study source was downloaded by 100000809669238 from CourseHero.com on 06-05-2021 14:27:34 GMT -05:00
https://www.coursehero.com/file/36341616/Basic-medmath-SHdocx/This study resource was
shared via CourseHero.com Shadow Health Basic Med Math Bryana Patton
11/2/2018
D(20mg)
H(10mg)x1tablet=X,X=2tablets
Answer: 2 tablets
4.Scenario: The Davis’s Drug Guide reports a potential drug-drug interaction with acetaminophen and warfarin. IF a patient is taking warfarin, mora than 2g/day of acetaminophen may increase bleeding. Because Mr. Larsen is ordered both, he should receive no more than 2g/day of acetaminophen.
Question: If Mr. Larsen takes acetaminophen 325mg, 2 tabs, by mouth every 4 hours for mild pain. What is the maximum number of tablets you can give him so that he doesn’t exceed 2g/day? (Assume you will only give him whole tablets.)
Work:
1.Determine how many milligrams are in 2 grams.
2gx1,000mg
1g=2,000mg
2.Determine how many 325mg tablets go into 2,000mg.
2,000mgx1tablet
325mg=6.15tablets
3.Consider that the dosage may not exceed 2,000mg, and you may only administer whole tablets.
Rounddown¿thewholenumberoftablets=6
Answer: 6 Tablets
5.Scenario: At 0800, Mr. Larsen reports a moderate pain level of 5, and so you administer oxycodone 5mg/ acetaminophen 325mg, 1 tab, by mouth. At 1200, Mr. Larsen reports mild pain rated 3, so you administer acetaminophen 325mg, 2 tabs, by mouth.
Question: At this point, how many acetaminophens have Mr. Larsen taken?
Work:
1.Determine how many mg of acetaminophen Mr. Larsen has taken each time.
325mgat0800
650mgat1200
2.Add the two amounts together:
325mg+650mg=975mg
Answer: 975mg
6.Scenario: In Mr. Larsen’s orders, the enoxaparin is prescribed for prophylaxis of DVT following knew replacement surgery, and he is ordered 30mg by subcutaneous injection every 12 hours. Suppose the pharmacy stocks multi-use vials of 300mg/3ml enoxaparin.
Question: How much will you need to draw up to administer a 30mg dose?
Work: 1.Determine what information you have.
D(ordereddose)=30mgThis study source was downloaded by 100000809669238 from CourseHero.com on 06-05-2021 14:27:34 GMT -05:00
https://www.coursehero.com/file/36341616/Basic-medmath-SHdocx/This study resource was
shared via CourseHero.com
