Math 101

Question 1

Pressure Units

Answer 1

101Kpa, 1013.3mbar, 760mmHg, 1033cmH2O, 14.7psi, 1 atm

Question 2

Drug Concentration

Answer 2

mass/volume

Question 3

Percent

Answer 3

g/dL

Question 4

drug ratio Ex (1/1000)

Answer 4

1g/1000mL

Question 5

Concentration

Answer 5

the abunndance of a constituent divided by the total volume of a mixture (mass conc, molar conc, volume conc, and number conc)

Question 6

Linear

Answer 6

Constant flow ventilator duing respiration

Question 7

Exponential process

Answer 7

the rate of change of a quantity at any time is proportional to the quantity at that time

Question 8

Hematocrit (Hct)

Answer 8

red cell volume/ blood volume

Question 9

Normal Hct

Answer 9

40%

Question 10

Minimum Hct range

Answer 10

22-26%

Question 11

Estimating acceptable blood loss (BVL)

Answer 11

EBV infants (80-90)mL/Kg, Males (70-75)mL/Kg, Females(60-65)mL/Kg

Question 12

(Hcti-Hcta)/Hctavg*EBVi

Answer 12

EBLa

Question 13

Blood loss replacement

Answer 13

Whole blood, RBcs, FFP 1:1
Colloids(5% albumin, Hespan, Hextend) 1:1
Crystalloids(NS, LR, D5W, Plasmalyte) 3:1

Question 14

Time Constants

Answer 14

1/e = 37% (washin or washout)
1/e2 = 13.5% 
1/e3 = 4.98%
1/e5 = 0.67%

Question 15

Circulatory time constant

Answer 15

5L/5L/min = 1min

Question 16

Pulmonary time constant

Answer 16

6L/6L/min = 1min

Question 17

Preoxygenation/ denitrogenation

Answer 17

deep breaths (1.5 mins) or tidal breathing (3mins)