lab data values

Question 1

PvO2 normal

Answer 1

35-40mmHg

Question 2

PvCO2 normal

Answer 2

40-50mmHg

Question 3

BE (base excess)

Answer 3

-2 to +2

Question 4

K+

Answer 4

3.5-5mmol/L

Question 5

Na+

Answer 5

136 - 145 mmol/L

Question 6

Cl-

Answer 6

95-105mmol/L

Question 7

Mg2+

Answer 7

0.8 - 1.2mmol/L

Question 8

Ca2+

Answer 8

1 - 1.15 mmol/L

Question 9

Creatinine

Answer 9

50 - 110umol/L

Question 10

urea (BUN)

Answer 10

2.8 - 7.7mmol/L

Question 11

albumin

Answer 11

33-47 g/L

Question 12

anion gap

Answer 12

15 - 20mmol/L

Question 13

lactate

Answer 13

0.6 - 2.4 mmol/L

NOTE: >5mmol/L = lactic acidosis + tissue hypoxia

Question 14

serum glucose

Answer 14

4-8 mmol/L

Question 15

RBC

Answer 15

4.5 - 5.5 x 10^12/L

Question 16

WBC

Answer 16

6 - 10 x 10^9/L

Question 17

platelets

Answer 17

150 - 450 x 10^9/L

Question 18

Hematocrit

Answer 18

42 - 47%

Question 19

Hb

Answer 19

120 - 160 g/L

Question 20

MAP

Answer 20

85 - 115mmHg

Question 21

SVR

Answer 21

950 - 1300 dynseccm-5

Question 22

normal and max safe ICP

Answer 22

10; max <20mmHg

Question 23

normal pulse pressure

Answer 23

30 - 40mmHg

Question 24

normal MAP and critical MAP for organ perfusion

Answer 24

normal 80 - 100mmHg

MAP < 60 mmHg can compromise organ perfusion

Question 25

normal pulmonary artery pressures

Answer 25

sys / diastolic = 20-30/8-15mmHg

Question 26

normal PCWP (indicates left ventricular end diastolic pressure)

Answer 26

4 - 12mmHg

Question 27

anatomical deadspace

Answer 27

2ml/kg

Question 28

normal CVP

Answer 28

2-6mmHg; also indicates right atrial pressure

Question 29

normal C.O.

Answer 29

4 - 8L/min

Question 30

normal C.I.

Answer 30

2.5-4L/min/m2

Question 31

normal EF

Answer 31

65 - 70%

Question 32

normal P/F ratio

Answer 32

400-500; <400 = pulm dysfunction

Question 33

normal P(A-a)O2 and normal PaO2/PAO2. Which is better indicator of shunt?

Answer 33

P(A-a)O2 = 10-15mmHg <60y.o. or 25-35 >60y.o.
PaO2/PAO2 = 0.75-1
Ratio is better indicator of shunt bc it is not dependent on age or FiO2