Math_course_manual - Nursing Math Presented by NURSING EDGE 1 Course Schedule Day One 1 2 3 4 5 6 7 8 9 Multiplying Fractions with Units Common

Math_course_manual - Nursing Math Presented by NURSING EDGE...

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Nursing Math Presented by NURSING EDGE 1
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Course Schedule________________________ Day One 1. Multiplying Fractions with Units 2. Common Conversions 3. Converting Temperatures 4. Pills 5. Suspensions 6. Tube Feedings 7. Weight based Calculations 8. Pediatric Fluid Requirement 9. Medications in a Vial Day Two 10. IV: Push Medications 11. IV: Drop Factor 12. IV: Fluids/Medications via Pump 13. IV: Units or ml per Hour 14. IV: Critical Care Math 2
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1. Multiplying Fractions with Units The basis of all nursing math is multiplying fractions with units. The process: 1.Determine the starting factor (what you know) 2. Determine the unit answer (the unit of measurement of the desired answer) 3.Determine a bridge factor (what will take you from the starting factor to the unit answer) 4. Formulate a conversion equation Starting factor X bridge factor = unit answer 5. Solve the equation a. Multiply top numbers b. Multiply bottom numbers c. Divide 6. Determine if the answer makes sense Example: Mr. Smith is ordered 500 mg Drug X. On hand is 250 mg tablets. How many tablets should the nurse administer? Step 1: Determine the starting factor (what is known) We know that Mr. Smith needs 500 mg Drug X. 500 mg is the starting factor. Step 2: Determine the unit answer The unit answer must be in mg Step 3: Determine a bridge factor 1 tablet 250 mg Step 4: Formulate a conversion equation 500 mg X 1 tablet = ____ mg 250 mg Step 5: Solve the equation (500 mg X 1 tablet)/250 mg = 2 tablets Step 6: Determine if the answer makes sense It is reasonable to administer 2 tablets to a patient 3
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A. Practice Problems 1. 10 ml X 20 mg = ___mg 5 ml 2. 46 mg X 30 ml = __ ml 10 mg 3. 17 ml X 15 mg = __ mg 5 ml B. Homework Problems 1. 19 ml X 40 mg = ___mg 15 ml 2. 52 mg X 25 ml = __ ml 20 mg 3. 5 mg X 2 ml = __ ml 0.5 mg 4. 120 ml X 40 mg = ___mg 60 ml 5. 15 ml X 0.1 mg = ___mg 7.5 ml 2. Common Conversions Conversions can be used as bridge factors. Example: Ms. Jones drank 4 glasses of water on day shift. How many ounces should the nurse record on the day sheet? Starting Factor: 4 glasses Unit Answer: ounces Bridge Factor: 1 glass contains 8 ounces 4 glasses X 8 ounces = 32 ounces 1 glass 4
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1 cental = 45,359 grams (g) 1 centimeter (cm) = 10 millimeters (mm) 1 cubic centimeter (cc) = 1 milliliter (ml) 1 cup (c) = 8 ounces (oz) 1 drachm = 3.55 milliliter (ml) 1 dram (dr) = 60 grains (gr) 1 dram (fl dr) = 60 minims 1 gallon (gal) = 4 quarts (qt) 1 gill = 4 ounces (oz) 1 glass = 8 ounces (oz) 1 grain (gr) = 64.8 milligrams (mg) 1 gram (g) = 1,000 milligrams (mg) 1 gram (g) = 1,000,000 micrograms (mcg) 1 gram (g) = 15.43 grains (gr) 1 hand = 4 inches (in) 1 inch (in) = 2.54 centimeters (cm) 1 kilogram (kg) = 1,000 grams (g) 1 kilogram (kg) = 2.2 pounds (lb) 1 liter (L) = 1000 milliliters (ml) 1 liter (L) = 1.057 quarts (qt) 1 meter (m) = 1,000 millimeters (mm) 1 meter (m) = 100 centimeters (cm) 1 milligram (mg) = 1,000 micrograms (mcg) 1 milliliter (ml) = 1 cubic centimeter (cc) 1 milliliter (ml) = 15 drops (gt) 1 milliliter (ml) = 16.23 minims 1 minim = 1 drop (gt) 1 ounce (fl oz) = 2 tablespoons (tbsp) 1 ounce (oz) = 20 pennyweights (dwt) 1 ounce (oz) = 24 scruples 1 ounce (oz) = 31.1 grams (g) 1 ounce (oz) = 480 grains (gr) 1 ounce (oz) = 8 drams (dr) 1 ounce, fluid (fl oz) = 29.57 milliliters (ml) 1 palm = 3 inches (in) 1 pennyweight (dwt) = 24 grains (gr) 1 pint (pt) = 16 ounces (oz) 1 pint (pt) = 4 gills 1 pound (lb) = 16 ounces (oz) 1 pound (lb) = 350 scruples 1 quart (qt) = 0.946 liters (L)
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  • Fall '11
  • Smith
  • Nursing, Trigraph, Orders of magnitude, Litre, Intravenous therapy, ml/hr

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