Basic Math Why is Math Important in Health Care?

Military Time  Based on 24 hour clock  No am or pm  Expressed in 4 digits  0000  1 st 2 numbers = hour  Last 2 numbers = minutes

Graphs:

Systems of measurement  Household  Metric

Household:  Used in home  Teaspoon, tablespoon, pint, quart, gallon  Pound, inch, foot, yard  Can convert to metric by simple math

Metric system:  Most widely used in health care  Decimal system; based on # 10  Monetary system in U.S. is based on metric

Metric system basic units:  Based on meter, gram & liter  Meter (m): length  Gram: (G), g, OR gm): Weight  Liter (l): liquid

GREEK AND LATIN PREFIXES:  Centi - 1/100  Milli - 1/1000  Kilo - x 1000

Metric System Uses:  Medications  Measure fluid intake  Measure urinary output  Measure newborn weight & length

Common equivalents:  Distance:  1 meter =  100 centimeters = 3.28 feet  2.54 cm = 1 inch

Weight:  1 Kilogram (kg) =  1000 gram (g)  = 2.2 pounds (lb)  500 g = 1 lb

Volume:  1000 milliliters (ml) = 1 liter (l)  1 ml = 1 cubic centimeter (cc)

Memorize these Metric & household Equivalents:  1 liter = 1 quart  30 ml = 1 ounce (2 tbsp)  15 ml = 1 tablespoon  5 ml = 1 teaspoon

1 kg = 2.2 pound  1 ml = 15 drops  1 inch = 2.5 cm

So…. 1 mm = meter 1cm=meter 1km=meter 1ml=liter 1L=liter 1000ml=liter 2000mg=grams 1000mcg=grams

250ml=L 0.5L=ml 2G=mg 500mg=G G=mg 0.05mg=G 1mcg=mg 2kg=lbs 60mg=G

0.005L=ml 200ml=L G=G 3.5cc=L 4KG=G 1ml=L 0.05mg=G

Temp conversion you must remember: F to C F-32 x 5/9=C Example:98.6F = 66.6

66.6 x 5 = =37C

C to F C x 9 / = F Example:37C 37 x 9 = / 5= = 98.6

Practice: 95F=C 40C=F 94F=C 38C=F 101F=C 10C=F

Rounding: Nearest hundred: Nearest tenth: Nearest ten:

I.The Scientific Method A. An organized approach to learn how the natural world works. 1. Ask a question

2. Form a hypothesis (a proposed explanation)

3. Perform an experiment

4. Analyze the data

5. Make your conclusion

II. The Importance of the Scientific Method A. Continues to allow science to grow B. Is testable by anyone else, and the outcome should be the same.