Calculations

Front 1

1 oz = g?

1 lbs = g?

Back 1

1 oz = 28.4 g

1 lbs = 454 g

Front 2

1 fl oz =

1 cup =

1 pint =

1 quart =

1 gal =

Back 2

1 fl oz = 30 mL

1 cup = 240 mL (8 oz)

1 pint = 473 mL

1 quart = 946 mL (2 pints)

1 gal = 3,785 mL (4 quartz)

Front 3

how many ml and oz in 1 pint

Back 3

16 oz and 473 ml

Front 4

how many ml in 1 qt

Back 4

2 pints
946 ml

Front 5

how many ml in 1 gallon

Back 5

4 qt or 3,785 ml

Front 6

how many g in 1 lb

Back 6

454 grams

Front 7

how many mg in 1 grain

Back 7

65 mg approx. or 64.8 actual

Front 8

% w/v

Back 8

g/100 ml

Front 9

how to convert from aminophylline to theophylline

Back 9

T = 0.8 * A

OR

T = 80% of A

Front 10

how to express % as PPM

.00022%

Back 10

just move decimal over 4 spots to right

2.2 PPM

to go from PPM to w/v move decimal left 4

Front 11

ratio strength
.04%

Back 11

.04/100 so put in terms of 1:x

so 1:2500

Front 12

BMI equation

Back 12

= kg/m^2

lbs/2.2
in = 2.54 cm

Front 13

BMI classifications

Back 13

<30 - Overweight
<25 - Normal
<18 - Underweight

<18.5 underweight
18.5 - 24.9 norm
25-29.9 overweight
> 30 obese

Front 14

IBW equation

Back 14

Male 50 kg + (2.3 x in >5 ft)
female 45.5 kg + (2.3 x >5 ft)

Front 15

how to tell if someone is dehydrated

Back 15

BUN/SCr >20

Front 16

CrCl equation

Back 16

[ (140-age) * wt / 7.2 * SCr) ] * 0.85 (female)

IBW (wt if req):
Male 50 kg + (2.3 x in >5 ft)
female 45.5 kg + (2.3 x >5 ft)

Front 17

Specific gravity of water

Back 17

1g/1ml

which is same as density!

Front 18

BSA equation

Back 18

square root of (cm x kg)/ 3600

Front 19

TPN units
dextrose

Back 19

3.4 kcal/g

Front 20

TPN units
protein (amino acids)

Back 20

4 kcal/g

Front 21

TPN units
Lipids

Back 21

think
fatlipids, 9 letters so 9kcal/g

Front 22

general guideline for determining fluid needs

Back 22

30-40 ml/kg/day

Front 23

calculation protein requirements

Back 23

ambulatory 1g/kg/day

hosp 2g/kg/d

Front 24

BEE BASAL ENERGY EXPENDITURE equation name

determines calories needed for what state?

just use this short equation...

Back 24

Harris-benedict equation

resting state

20 kcal/g/day

Front 25

TEE, TOTAL ENERGY EXP. EQUATION

Back 25

TEE= BEE x stress x activity

Front 26

how many g or N per protein g

Back 26

1 g N = 6.25 g of protein

Front 27

how many kcal in 10%lipids

Back 27

1.1kcal/g

Front 28

how many kcal in 20% lipids

Back 28

2 kcal/g

Front 29

acidotic pt needs Na, which vs do u give?

Back 29

Na acetate, cause it forms bicarb, alleviating acidosis

Front 30

Ca corrected equation

Back 30

Ca serum + ((4-albumin)(0.8))

if albumin is low, Ca level will be higher, d/t less bound to albumin

Correct if: <3.5 albumin

Front 31

steps to minimize Ca phosphate precipitation

Back 31

use calcium gluconate (disassociates less)
add phosphate first, other tpn stuff, then Ca
maintain pH and refrigerate

Front 32

dextrose disassociates into how many particles

Back 32

1

Front 33

sodium chloride disassociates into how many particles

Back 33

NaCl = 2

Front 34

SODIUM CITRATE disassociates into how many particles

Back 34

Na3C6H50 = 4

Front 35

Mannitol disassociates into how many particles

Back 35

1

Front 36

Potassium Chloride disassociates into how many particles

Back 36

KCL = 2

Front 37

Calcium chloride disassociates into how many particles

Back 37

CaCl2= 3

Front 38

Sodium acetate disassociates into how many particles

Back 38

2

Front 39

mOsm/L equation

Back 39

wt of substance (g/L****)/ (MW) x #of species x 1,000

Front 40

what is the MW of NaCl and its i

Back 40

MW=58.5 and a disassociation factor of 1.8

Front 41

what is the NaCL equivalents equation or E value

Back 41

E = (58.5 * i) / (1.8 * MW)

measures tonicity of a drug to compare to NaCl to determine if isotonic/hypo or hypertonic

Front 42

whats the I factor for 2 dissacc ions

Back 42

1.8

it increases by .8 per ion after
3 ions = 2.6

Front 43

steps to help make a soln isotonic

Back 43

1 calc E value
2 Evalue x wt of med
3 how many g of nacl in size wanted to make isotonic
4 step3-2

Front 44

mols equation

Back 44

g/MW

Front 45

mEq formula

Back 45

mg x valence/ MW

or

mmol x valence

Front 46

KCL 10% = how many mEQ/ML

Back 46

20 mEq/15 ml

Front 47

C to F equation

F to C equation

Back 47

F= (C * 1.8) +32 OR 180% of C + 32

C=(F-32) /1.8

Front 48

CALCIUM CARBONATE should be taken how and what % of it is elemental calcium

Back 48

acid dependent absorption, so take with meals

40% is elemental Ca

Front 49

calcium citrate have how much elemental ca

Back 49

21%, and has acid independent absorption

Front 50

RBCs life span

Back 50

120 days

Front 51

platelets life span

Back 51

7-10 days

Front 52

whats the ANC equation

AGC Eqution

Back 52

ANC= WBC * %neutrophils or (segs % + bands%)

AGC= WBC * %neutrophils or (segs % + bands%) + Eosinophils + Basophils

Front 53

anion gap equation

Back 53

anion gap = Na - (Cl + HCO3)

high if >12

Front 54

what does it mean when pKa=pH

Back 54

half the compound is protonated and half is not protonated

Front 55

if pH>pKa then

Back 55

more of acid is ionized

Front 56

if pH <pKa

Back 56

more of the acid is unionized and more of the conjugate base is ionized

Front 57

a buffer is used to

Back 57

minimize fluctuations in pH

Front 58

Henderson-Hasselbalch equation

Back 58

pH=pKa + log (salt/acid)

or

pH = pKa + log (base/salt )

Front 59

what is an aliquot

Back 59

its used when such a small weight can be measured using a class A torsion balance

so dilutions or aliquots are needed

Front 60

what is the SR of a class A torsion balance

Back 60

SR or sensitivity requirement is 6mg

Front 61

MWQ equation

Back 61

minimum weighable quantity = SR or 6/% of error (usually .05)

so typically MWQ is 120mg

Front 62

steps to do aliquots

Back 62

1 fig out MWQ
2 desired strength multiplied by what # is > MWQ
3 then MWQ X the multiplier from above is total quantity
4 total - step 2 = dilution quantity
5 step 2 quantity or MWQ is the amt weighed to give desired quantity