Cardiovascular Physiology - Parameters Flashcards
Blood volume
5.5L (average)- higher for male, lower for female
Hematocrit (% of RBC) Average:
0.45 (45%)
Hematocrit Male:
0.4-0.52
Hematocrit Female:
0.35-0.47
Hemoglobin concentration
12 – 16 g/dL (or 120-160 g/L)
Blood plasma protein concentration:
average 7 g/dL
Albumin plasma concentration:
3.5-5 g/dL (60% of protein concentration)
Immunoglobulin plasma concentration:
1-1.5 g/dL (~20%)
Fibrinogen
0.2-0.45 g/dL (4%)
Duration of PQ (or PR) interval of ECG (HR=75/min)
0.12-0.2 sec
Duration of QRS complex of ECG (HR=75/min)
0.06-0.1 sec
Duration of P wave of ECG (HR=75/min)
< 0.11 sec
Amplitude of ST-segment of ECG
0.1-0.2 mV (or 1-2 “small squares”)
Amplitude of R and T waves of ECG in lead II
R > 5mm (up to 20 mm)
T < 5mm
Duration of cardiac cycle (HR=75/min)
0.8 Sec
Duration of systole (HR=75/min)
0.27 (~0.3) Sec
Duration of diastole (HR=75/min)
0.53 (~0.5) Sec
Duration of ventricular ejection (HR=75/min)
~0.25 Sec (Ejection phase Rapid + Slow)
Duration of ventricular filling (HR=75/min)
~0.38 Sec (Rapid filling + Diastasis + Last Rapid filling)
Stroke volume
80 ml
Systolic pressure in the aorta
120 mmHg
Diastolic pressure in the aorta
80 mmHg
Systolic pressure in the right ventricle
24 mmHg
Diastolic pressure in the right ventricle
4 mmHg
Systolic pressure in the left ventricle
120 mmHg
Diastolic pressure in the left ventricle
~4 mmHg (barely above 0)
Systolic pressure in the Pulmonary artery
24 (~25) mmHg
Diastolic pressure in the Pulmonary artery
9 (~10) mmHg
Central venous pressure
0-2 mmHg
can be considered as right atrium pressure
Blood flow of kidney
1200-1300 ml / min (20-25% of CO)
AVDO2 in the kidney
350 ml O2 / L blood
Blood flow of splanchnic area
1500 ml / min (25% of CO)
AVDO2 in the splanchnic area
30-40 ml O2 / L blood
Blood flow of brain
700-800 ml / min (15% of CO)
AVDO2 in the brain
60 ml O2 / L blood
Blood flow of heart (coronary arteries)
200-250 ml / min (5% of CO)
AVDO2 in the heart in resting condition
110 ml O2 / L blood (60-80% extraction of O2)
AVDO2 in the heart during physical exercise
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
Blood flow of skin
100-300 ml / min (5-7% of CO) (Neutral Temperature)
AVDO2 in the skin
20-30 ml O2 / L blood
Blood flow of skeletal muscles at rest:
5-10 ml / 100g / min
Blood flow of skeletal muscles during exercise:
100-250 ml / 100g / min (x20-25 times higher)
AVDO2 in the skeletal muscles in resting condition
60 ml O2 / L blood
AVDO2 in the skeletal muscles in during physical exercise
150 ml O2 / L blood
Cerebrospinal fluid volume
120 ml
Protein concentration of cerebrospinal fluid
0.03 g / dL
Hydrostatic pressure of capillaries in the arteriolar end and in the venular end
Arteriolar end: 30-40 mmHg (Filtration)
Venular end: 10-15 mmHg (Filtration)
Effective filtration pressure (pressure difference) of capillaries in the arteriolar end and in the venular end
Arteriolar end: +14 mmHg (Filtration)
Venular end: -9 mmHg (Absorption)
Oxygen consumption in 1 minute
250 ml / min
AVDO2 in the systemic circulation
60 ml O2 / L blood
Capillary Oncotic Pressure:
25 mmHg (Constant mostly)
