Medical Math for Health Team Know the abbreviations

Medical Math for Health Team

Know the abbreviations o Length/Distance - Household inch (“ or in) foot (‘ or ft) yard (yd)

Metric System • Distance/length: meter (m) • Volume: liter (L) • Mass/weight: gram (g or gm) • Common metric prefixes • Kilo: 1000 times • Centi: 1/100(100 times) • Milli: 1/1000

Capacity/Volume - Household • teaspoon (t or tsp) • tablespoon (T or tbsp) • ounce (oz) • cup (C)-8 oz = 1 C (KNOW) • pint (pt) • quart (qt) » Mass/Weight - Household • ounce (oz ) • pound ( lb )

Metric conversions 1 m = 100 cm 1 m = 1000 mm 10 mm = 1 cm 1 L = 1000 m. L 1 m. L = 1 cc 1 g = 1000 mg 1 kg = 1000 g

Convert among metric and standard measurements. Memorize!! 1 in = 2. 5 cm 39. 4 in = 1 m 1 tsp = 5 m. L 1 oz = 30 m. L 1 qt = 1000 cc 2. 2 lb = 1 kg Celsius to Fahrenheit (0 C x 1. 8) + 32 = 0 F Fahrenheit to Celsius (0 F – 32) / 1. 8 = 0 C

Temperature Memorize!!! Celsius to Fahrenheit (0 C x 1. 8) + 32 = 0 F Fahrenheit to Celsius (0 F – 32) ÷ 1. 8 = 0 C

Military Time expressed using 4 digits 0100 = 1 am 0530 = 5: 30 am 1200 = noon 1400 = 2 pm 2000 = 8 pm 2400=midnight

12 midnight on the dot is called 2400 (twenty-four- hundred). Once you are even a minute past, you use 0000, for this is where the 24 -hour clock officially starts. An example- let's say 15 minutes past midnight. You use 0015, and you pronounce it "zero-one-five. " (12: 15 AM)

The trick the soldiers learn, is that whatever number you have, subtract 12 from it, and you have the regular time. Example: 1800 hours. . (18 -12=6) So, 1800 hours is 6 PM. 2230 Hours (22 -12=10) 2230 hours is 10: 30 PM

A Look at 2400 clock

What time is 11: 00 a. m. in military time?

What time is 5: 30 pm military time?

Roman Numerals Roman numerals are sometimes used for medications and solutions as well as with organizing file systems in health care. I = 1 V = 5 X = 10 L = 50 C = 100 D = 500 M = 1000

Roman Numeral Rules No more than three of the same Roman Numerals should be used in a sequence. When the same number is next to itself, you add them together. (XX is 10+10=20) When a smaller number is before a larger one (such as in IV), then the smaller number is subtracted from the larger one. (5 -1=4) If a smaller number is after a larger one, then you add. VI would be (5+1=6)

Practice Makes Perfect: What is the Roman numeral for 40? Use L for 50 and X for ten and remember your rules to place them properly!! XL-subtract the smaller number X (10) from the larger number L(50)- (50 -10=40)

Lets practice again: You need to order LXVIII boxes of probe covers for your thermometers in the medical clinical where you work. How many is this? L=50 X=10 VIII= (5+1+1+1)=8 Add all together 50+10+8=68

More Practice: You have CLXIV members of your high school club. How many are there? C=100 L=50 X=10 IV (remember I is smaller than V so you subtract V=5 and I=1 so 5 -1=4) Add them all together 100+50+10+4=164