Exam (elaborations) Basic_medmath_SH.

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. 2 g x 1,000mg 1 g =2,000mg 2. Determine how many fish pill capsules Mr. Larsen should take to ingest 2,000mg 1 capsule 1,000mg x2,000mg=2 capsules 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. 24 hours x 1 dose 6 hours =4doses 2. Multiply the number of doses by the number of milligrams per dose. 4 doses x 50mg 1 dose =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(ordered dose )=20mg H (doseon hand )=10mg Q(quantity)=1 tablet 2. Plug into the equation and solve. This study source was downloaded by from CourseH on 08-28-2021 09:43:46 GMT -05:00 This study resource was shared via CourseH Shadow Health Basic Med Math Bryana Patton 11/2/2018 D(20mg) H(10mg) x1 tablet=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. 2 g x 1,000mg 1 g =2,000mg 2. Determine how many 325mg tablets go into 2,000mg. 2,000mg x 1 tablet 325mg =6.15 tablets 3. Consider that the dosage may not exceed 2,000mg, and you may only administer whole tablets. Round down¿ the whole number of tablets=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. 325mg at 0800 650mg at 1200 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(ordered dose )=30mg This