dosage calculations (+ abbreviations + conversions

original five rights of medication safety

• right medication

• right dose

• right patient

• right route

• right time

extra rights

right documentation, reason, education, right to refuse, right to response

PO

taken orally

IM

intramuscular

AC, ac

before meals

Ad lib

as desired

BID, bid

twice each day

PC, pc

after meals

prn

when needed

Q am

every morning

qh

every hour

qd

every day

q4h

every 4 hours

QID, qid

4 times per day

STAT, stat

give now

TID, tid

3 times per day

ug

microgram

hs

bedtime

IU

international unit

SC, SQ

subcutaenous

U

unit

1 mg = ? mcg

1000 mcg

1 g = ? mg

1000 mg

1 kg = ? g

1000 g

1 tsp = ? mL or cc

5 mL or cc

1 tbsp = ? mL or cc

15 mL or cc

1 oz = ? mL or cc

30 mL or cc

1 qt = ? mL or cc

1000 mL or cc

dimensional analysis

most commonly used/safest formula

set up of dimensional analysis

dimensional analysis V = ?

form of the drug

dimensional analysis H = ?

equivalence in units

dimensional analysis C = ?

conversion factor

dimensional analysis D = ?

dosage desired

if no conversion in necessary, which steps are taken out

C(H) and C(D)

how is insulin given?

by units

how is TB given?

by mL

low-dose syringe

50 units or 0.5 mL (is for insulin)

100 mL capacity syringe (for insulin)

1 mL (is for insulin)

double scale syringe

two measurements on each side; odd # on left, even # on right

U-100

100 units of insulin per 1 mL

U-500

500 units of insulin per 1 mL

difference b/w pediatric dosing and adult dosing

based on mL per kg of body weight (lbs → kgs)

1 kg = ? lb

2.2 lb

1 lb = ? kg

0.45 kg