Metric & Household Measurements BCC Pharmacy Tech.

11
Metric & Household Measurements BCC Pharmacy Tech

Transcript of Metric & Household Measurements BCC Pharmacy Tech.

Page 1: Metric & Household Measurements BCC Pharmacy Tech.

Metric & Household Measurements

BCC Pharmacy Tech

Page 2: Metric & Household Measurements BCC Pharmacy Tech.

Metric Measurements Metric system=system of choice for dealing

with weights and measures in the calculations of drug dosages

Decimal system 0.5 0.75 0.007

Page 3: Metric & Household Measurements BCC Pharmacy Tech.

Certain prefixes identify multiples of 10 that are being used.

4 most common; micro, milli, centi, kilo Prefixes can be used with any of the base

units weight (gram), volume (liter) or length (meter)

Page 4: Metric & Household Measurements BCC Pharmacy Tech.

Weight 1,000,000 mcg=1 g 1,000 mcg = 1 mg 1000 mg =1 g 1000 g = 1 kg

Volume 1000 mL = 1 L 1 cc = 1mL

Length 1 m = 1,000 mm or 100 cm 1 cm = 10 mm or 0.01 m 1 mm = 0.1 cm or 0.001 m

Page 5: Metric & Household Measurements BCC Pharmacy Tech.

Example 300 mg equals how many grams?

100 mg: 1 g:: _____ mg: _____ g

1000 mg: 1 g :: 300 mg: __x__ g

Page 6: Metric & Household Measurements BCC Pharmacy Tech.

More Practice 2.5 L equals how many milliliters? 180 mcg equals how many grams? 15 mm equals how many centimeters?

Page 7: Metric & Household Measurements BCC Pharmacy Tech.

Household Measurements Household measures are not accurate enough

for the nurse to use in the calculation of drug dosages in the hospital.

Metric equivalents are used. I & O or intake and output

Page 8: Metric & Household Measurements BCC Pharmacy Tech.

Metric Household Equivalents Metric Measure = Household Measure

5 mL = 1 tsp 15 mL = 1 Tbsp 30 mL = 1 oz 240 mL = 1 standard measuring cup 1 kg or 1000 g = 2.2 lb 2.5 cm = 1 in 1 foot = 12 inches

Page 9: Metric & Household Measurements BCC Pharmacy Tech.

Example 1 ½ cups equals how many milliliters? 1 cup : 240 mL :: 1 cup : 240 mL :: _____ cups : _____mL 1 cup : 240 mL :: 1 ½ cups : __x__ mL

Page 10: Metric & Household Measurements BCC Pharmacy Tech.

More Practice 35 kg equals how many pounds? 18 inches equals how many centimeters?