Kaplan Basic Math

Kaplan Basic Math The health care provider orders methotrexate 15 milligrams orally daily. Methotrexate is available in 2.5 milligrams/tablet. How many tablets should the nurse administer?

6 tablets 2.5 mg/1 = 15 mg/x, 2.5x = 15, x = 6 tablets Dimensional Analysis: x tablet = (1 tablet x 15 mg)/2.5 mg = 15/2.5 = 6 tablets

Kaplan Basic Math The health care provider orders methimazole 60 milligrams orally daily. Methimazole is available in 10 milligrams/tablet. How many tablets should the nurse administer?

6 tablets 10/1 = 60/x, 10x = 60, x = 6 tablets Dimensional Analysis: x tablet = (1 tablet x 60 mg)/10 mg = 60/10 = 6 tablets

Kaplan Basic Math The health care provider orders cephalexin 250 milligram orally every 12 hours. Cephalexin is available in 500 milligrams/tablet. How many tablets should the nurse administer in one dose? Do not Round.

0.5 tablets 500/1 = 250/x, 500x = 250, x = 0.5 tablet Dimensional Analysis: (1 tab x 250 mg)/500 mg = 250/500 = o.5 tablet

Kaplan Basic Math The health care provider orders ergocalciferol 240,000 units orally daily. Ergocalciferol is available in 8000 units/milliliter. How many ounces should the nurse administer?

1 ounce 8000/1 = 240,000/x, 8000x = 240,000, x = 30 mL 30 mL = 1 ounce Dimensional Analysis: x ounces = (1 mL x 240,000 units x 1 ounce)/(800 units x 30 mL) = 240,000/240,000 = 1 ounce

Kaplan Basic Math The health care provider orders morphine 12 milligrams intramuscularly every 4 hours. The label reads 8 mg/mL. How many mL should the nurse administer for each dose?

1.5 mL 8 mg/1 = 12 mg/x, 8x = 12, x = 1.5 mL Dimensional Analysis: x mL = (1 mL x 12 mg)/8 mg = 12/8 = 1.5 mL

Kaplan Basic Math The health care provider orders cefuroxime 250 milligrams orally every 12 hours. Cefuroxime is available in 125 milligrams/tablet. How many tablets should the nurse administer in one dose?

2 tablets 125/1 = 250/x, 125x = 250, x = 2 tablets Dimensional Analysis: x tablet = (1 tablet x 250 mg)/125 mg = 250/125 = 2 tablets

Kaplan Basic Math The health care provider orders irbesartan 300 mg twice daily. The medication comes in 150 mg tablets. How many tablets should the nurse administer for each dose?

2 tablets 150/1 = 300/x, 150x = 300, x = 2 tablets Dimensional Analysis: x tablet = (1 tablet x 300 mg)/150 mg = 300/150 = 2 tablets

Kaplan Basic Math The health care provider orders prochlorperazine 10 milligrams orally three times daily. The medication comes in 5 mg tablets. How many tablets should the nurse administer for each dose?

2 tablets 5 mg/1 = 10 mg/x, 5x = 10, x = 2 tablets Dimensional Analysis: x tablets = (1 tablet x 10 mg)/5 mg = 10/5 = 2 tablets

Kaplan Basic Math The health care provider orders ergocalciferol 240,000 units orally daily. Ergocalciferol is available in 8000 units/milliliter. How many milliliters should the nurse administer?

30 mL 8000/1 = 240,000/x, 8000x = 240,000, x = 30 mL Dimensional Analysis: x mL = (1 mL x 240,000 units)/8000 units = 240,000/8000 = 30 mL

Kaplan Basic Math The health care provider orders a digitalizing dose of digoxin 1.25 milligrams orally STAT. The medication comes in 0.25 mg tablets. How many tablets should the nurse administer?

5 Tablets 0.25/1 = 1.25/x, 0.25x = 1.25, x = 5 tablets Dimensional Analysis: x tablet = (1 tablet x 1.25 mg)/0.25 mg = 1.25/0.25 = 5 tablets