Math

Question 0

Height (cm)

Answer 0

(Height inches)(2.54 inches/cm)

Question 1

Target Flow

Answer 1

(Cardiac Index)(Surface Area)

L/min

Question 2

Weight (kg)

Answer 2

(Weight lbs)/(2.2lbs/kg)

Question 3

Surface Area

Answer 3

Square root of ((cm)(kg))/3600

m2

Question 4

RBCV

Answer 4

=(HCT)(TCBV)

Question 5

TCBV

Answer 5

=(70mL/kg or 75ml/kg)(kg)

Question 6

Post dilutional hematocrit (PDHC)

Answer 6

Numerator: RBCV+((HCT of add RPC)x(vol. of added Red Cells)
Numerator contains all the sum of all sources of RBC’S

Denominator: TCBV+Prime+(vol. of Anes)-(urine output)+(vol. of
added PRC)
Denominator: contains all the sources that affect total blood vol.

Question 7

Heparin Loading Dose (units)

Answer 7

(300 to 400 units/kg)(weight kg)

Question 8

Heparin Loading Dose (ml)

Answer 8

(Loading Dose in units) / (Heparin conc)

Question 9

Protamine Dose

Answer 9

First calculate total heparin load in mg:
(THL in mg) = ((THL in units) / (100 units/mg))

Then calculate protamine dose:
(THL in mg) X (1.3 mg Prot / mg Heparin)

Question 10

Amount of Oxygen Dissolved in Plasma

Answer 10

(mL O2)/(100ml bld)=(pO2 mmHg)(0.003 mLO2/mmHg/100mL bld)

Measured in (mL O2)/(100ml bld)

Question 11

Oxygen Consumption / OxygenTransfer

Answer 11

=((1.34 ml O2)/(gm Hgb))x((gm Hgb)/100 mL bld))x(Art sat - ven sat)x(mL bld)/(min)

Measured in (mL O2)/(min)

Question 12

Oxygen Content of Arterial Blood

Answer 12

=((1.34 ml O2)/(gm Hgb))x((gm Hgb)/100 mL bld))x(Art sat)

Measured in (mL O2)/(100ml bld)

Question 13

Oxygen Content of Venous Blood

Answer 13

=((1.34 ml O2)/(gm Hgb))x((gm Hgb)/100 mL bld))x(Ven sat)

Measured in (mL O2)/(100ml bld)

Question 14

Total Oxygen Presented to Tissues

Answer 14

=((1.34 ml O2)/(gm Hgb))x((gm Hgb)/100 mL bld))x(Art sat)x(mL bld)/(min)

Measured in (mL O2)/(min)

Question 15

Heparin Dose-Response (Slope)

Answer 15

Slope of the line represents the change in
time (seconds) associated with a change in the plasma concentration (units / kg)

Δ in Time (y) / Δ in Concentration (x)

(Post time – Initial time) / (Post conc – Initial conc)

Question 16

Heparin Dose-Response (conc)

Answer 16

Conc = ((Secs)-(Baseline sec)) / Slope

Units/kg