Cardiovascular Physiology - Parameters

Question 1

Blood volume

Answer 1

5.5L (average)- higher for male, lower for female

Question 2

Hematocrit (% of RBC) Average:

Answer 2

0.45 (45%)

Question 3

Hematocrit Male:

Answer 3

0.4-0.52

Question 4

Hematocrit Female:

Answer 4

0.35-0.47

Question 5

Hemoglobin concentration

Answer 5

12 – 16 g/dL (or 120-160 g/L)

Question 6

Blood plasma protein concentration:

Answer 6

average 7 g/dL

Question 7

Albumin plasma concentration:

Answer 7

3.5-5 g/dL (60% of protein concentration)

Question 8

Immunoglobulin plasma concentration:

Answer 8

1-1.5 g/dL (~20%)

Question 9

Fibrinogen

Answer 9

0.2-0.45 g/dL (4%)

Question 10

Duration of PQ (or PR) interval of ECG (HR=75/min)

Answer 10

0.12-0.2 sec

Question 11

Duration of QRS complex of ECG (HR=75/min)

Answer 11

0.06-0.1 sec

Question 12

Duration of P wave of ECG (HR=75/min)

Answer 12

< 0.11 sec

Question 13

Amplitude of ST-segment of ECG

Answer 13

0.1-0.2 mV (or 1-2 “small squares”)

Question 14

Amplitude of R and T waves of ECG in lead II

Answer 14

R > 5mm (up to 20 mm)

T < 5mm

Question 15

Duration of cardiac cycle (HR=75/min)

Answer 15

0.8 Sec

Question 16

Duration of systole (HR=75/min)

Answer 16

0.27 (~0.3) Sec

Question 17

Duration of diastole (HR=75/min)

Answer 17

0.53 (~0.5) Sec

Question 18

Duration of ventricular ejection (HR=75/min)

Answer 18

~0.25 Sec (Ejection phase Rapid + Slow)

Question 19

Duration of ventricular filling (HR=75/min)

Answer 19

~0.38 Sec (Rapid filling + Diastasis + Last Rapid filling)

Question 20

Stroke volume

Answer 20

80 ml

Question 21

Systolic pressure in the aorta

Answer 21

120 mmHg

Question 22

Diastolic pressure in the aorta

Answer 22

80 mmHg

Question 23

Systolic pressure in the right ventricle

Answer 23

24 mmHg

Question 24

Diastolic pressure in the right ventricle

Answer 24

4 mmHg

Question 25

Systolic pressure in the left ventricle

Answer 25

120 mmHg

Question 26

Diastolic pressure in the left ventricle

Answer 26

~4 mmHg (barely above 0)

Question 27

Systolic pressure in the Pulmonary artery

Answer 27

24 (~25) mmHg

Question 28

Diastolic pressure in the Pulmonary artery

Answer 28

9 (~10) mmHg

Question 29

Central venous pressure

Answer 29

0-2 mmHg | can be considered as right atrium pressure

Question 30

Blood flow of kidney

Answer 30

1200-1300 ml / min (20-25% of CO)

Question 31

AVDO2 in the kidney

Answer 31

350 ml O2 / L blood

Question 32

Blood flow of splanchnic area

Answer 32

1500 ml / min (25% of CO)

Question 33

AVDO2 in the splanchnic area

Answer 33

30-40 ml O2 / L blood

Question 34

Blood flow of brain

Answer 34

700-800 ml / min (15% of CO)

Question 35

AVDO2 in the brain

Answer 35

60 ml O2 / L blood

Question 36

Blood flow of heart (coronary arteries)

Answer 36

200-250 ml / min (5% of CO)

Question 37

AVDO2 in the heart in resting condition

Answer 37

110 ml O2 / L blood (60-80% extraction of O2)

Question 38

AVDO2 in the heart during physical exercise

Answer 38

110 ml O2 / L blood (60-80% extraction of O2) | already at maximum extraction, only way to compensate- is to increase blood flow to the heart

Question 39

Blood flow of skin

Answer 39

100-300 ml / min (5-7% of CO) (Neutral Temperature)

Question 40

AVDO2 in the skin

Answer 40

20-30 ml O2 / L blood

Question 41

Blood flow of skeletal muscles at rest:

Answer 41

5-10 ml / 100g / min

Question 42

Blood flow of skeletal muscles during exercise:

Answer 42

100-250 ml / 100g / min (x20-25 times higher)

Question 43

AVDO2 in the skeletal muscles in resting condition

Answer 43

60 ml O2 / L blood

Question 44

AVDO2 in the skeletal muscles in during physical exercise

Answer 44

150 ml O2 / L blood

Question 45

Cerebrospinal fluid volume

Answer 45

120 ml

Question 46

Protein concentration of cerebrospinal fluid

Answer 46

0.03 g / dL

Question 47

Hydrostatic pressure of capillaries in the arteriolar end and in the venular end

Answer 47

Arteriolar end: 30-40 mmHg (Filtration) | Venular end: 10-15 mmHg (Filtration)

Question 48

Effective filtration pressure (pressure difference) of capillaries in the arteriolar end and in the venular end

Answer 48

Arteriolar end: +14 mmHg (Filtration) | Venular end: -9 mmHg (Absorption)

Question 49

Oxygen consumption in 1 minute

Answer 49

250 ml / min

Question 50

AVDO2 in the systemic circulation

Answer 50

60 ml O2 / L blood

Question 51

Capillary Oncotic Pressure:

Answer 51

25 mmHg (Constant mostly)