Calc 3 Exam

mmol

mg/MW

calculate mEq

MW/valence = mg/mEq

calculate mOsm

MW/# particles = mg/mOsm

g/mol

mg/mmol

osmolarity

mOsm/L

1 kg

2.2 lb

1 in

2.54 cm

1 oz

28.35 g

Underweight

BMI< 18.5

ABW< 90% IBW

Normal

BMI 18.5 to 24.9

ABW 90 to 120% IBW

Overweight

BMI 25 to 29.9

ABW >120 to <150% IBW

Obese (class I and II)

BMI 30 to 39.9

ABW 150 to 200% IBW

Severely Obese (Class III)

BMI >/= 40

ABW >/= 200% IBW

Ideal Body Weight (male)

IBW male (kg) = 50 + 2.3 (total in - 60)

Ideal body weight (female)

IBW female (kg) = 45.5 + 2.3 (total in - 60)

Adjusted Body Weight

AdjBW% = IBW + %/100 x (TBW - IBW)

TBW = ABW

ALL WEIGHTS IN kg!!

Body Surface Area

BSA (m²) = √[(height (cm) x weight (kg))/3600]

Body Mass Index

BMI (kg/m²) = weight (kg)/[height (m)]² or weight (Ib)/[height (in)]² x 703

% ABW vs IBW

% difference = ABW/IBW x 100

Creatinine Clearance (male)

CrCl male (mL/min) = [(140 - age) x ABW] / [72 x SCr (mg/dL)]

Creatinine Clearance (female)

CrCl female (mL/min) = 0.85 x [(140 - age) x ABW] / [72 x SCr (mg/dL)]

Absolute Neutrophil Count

ANC = WBC x [(seg+band)/100]