Dosage Calculations Flashcards
(61 cards)
0
Q
Liter
A
Basic unit for volume
1
Q
Gram
A
Basic unit of weight
2
Q
Meter
A
Basic unit for length
3
Q
Kilogram (kg)
A
1000 grams (g)
4
Q
1000 grams (g)
A
Kilogram (kg)
5
Q
Gram (g)
A
1000 milligrams (mg)
6
Q
1000 mg
A
1 gram (g)
7
Q
Milligram (mg)
A
1000 micrograms (mcg)
8
Q
1000 mcg
A
1 milligram
9
Q
Liter (L)
A
1000 milliliters (mL)
10
Q
1000 milliliters
A
1 liter (L)
11
Q
The rule for zero’s
A
Always have a leading zero. Ex: 0.25
Never have trailing zero. Ex: 2.5
12
Q
300 mg =______g
A
0.3
13
Q
6mg=________mcg
A
6000
14
Q
0.7L=_________mL
A
700
15
Q
180mcg=______mg
A
0.18
16
Q
238g=____________mcg
A
238,000,000
17
Q
How much is one grain?
A
60 or 64 or 65 mg
18
Q
150mg=_________g
A
0.15
19
Q
15g=___________kg
A
0.015
20
Q
2kg___________g
A
2000
21
Q
3g=____________mg
A
3000
22
Q
ss
A
1/2
23
Q
i
A
1
24
3 teaspoons equal....
1 tablespoon
| 1/2 ounce
25
1 cup equals
6 ounces
26
One glass equals
8 ounces
27
One pint equals
16 ounces
| 2 glasses
28
One quart
32 ounces
2 pints
4 glasses
29
One gallon equals
128 ounces
4 quarts
8 pints
16 glasses
30
1 kg
2.2 pounds
31
2.2 pounds
1 kg
32
60, 64, 65 mg
1 grain
33
1 grain
60, 64, 65 mg
34
1000 mL = 1L
1 quart
35
1 quart
1000 mL = 1L
36
30 mL
1 ounce
37
1 ounce
30 mL
38
5mL
1tsp
39
1tsp
5mL
40
15mL
1T
41
1T
15mL
42
1/2 oz
15mL
43
2tsp
10mL
44
90mL
3oz
45
One-half grain
gr 1/2 or gr ss
46
1/2 ounce
1T
47
1gr
60 mg or 64 mg or 65 mg
48
PR
Per rectum
49
IVPB
IV piggy back
50
ac
Before meal
51
PC
After meal
52
hs, noc, noct
At bedtime
| Hour of sleep
53
Formula method
D. x. Q. =. X
---
H
Dose ordered. x. Quantity. = amount to give
-------------------
Dose on hand
55
Rounding rule for injectable medication
- Round injectable medications less than 1 mL to the hundredths place
- Round injectable medications more than 1 mL to the tenths place
56
mEq
milliequivalent
57
Rounding rule for weight
Round answer to the nearest tenth
58
Calculations based on weight
| Body weight formula
drug dose x weight (kg) = patient's dose
59
Calculating IV flow rate (mL/hr)
| formula to determine hourly volume
amount of solution mL / hr
------------------------- =
hours to infuse
ex: 1800 mL 75 mL / hr
------------ =
24 hr
60
Calculating IV flow rate for medications order per continuous IV infusion
dose ordered x quantity = X
------------------
dose on hand
ex: 2000 x 1000 = 80 mL/hr
---------
25000
61
Calculating IV flow rate (gtt/min)
amt. of sol. to be given (mL) x drop factor (gtt/mL)
------------------------------------------------------------------
Total minutes IV will run
EX: 1000 mL x 15 gtt/min
---------------------------- = 250 gtt/min
60 min