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  2. Right atrial pressure - Wikipedia

    en.wikipedia.org/wiki/Right_atrial_pressure

    Right atrial pressure (RAP) is the blood pressure in the right atrium of the heart. RAP reflects the amount of blood returning to the heart and the ability of the heart to pump the blood into the arterial system.

  3. Cardiac function curve - Wikipedia

    en.wikipedia.org/wiki/Cardiac_function_curve

    The pressures where there is a steep relationship lie within the normal range of right atrial pressure (RAP) found in the healthy human during life. This range is about -1 to +2 mmHg . The higher pressures normally occur only in disease , in conditions such as heart failure , where the heart is unable to pump forward all the blood returning to ...

  4. Hemodynamics - Wikipedia

    en.wikipedia.org/wiki/Hemodynamics

    A simplified form of this equation assumes right atrial pressure is approximately 0: / The ideal blood pressure in the brachial artery, where standard blood pressure cuffs measure pressure, is <120/80 mmHg. Other major arteries have similar levels of blood pressure recordings indicating very low disparities among major arteries.

  5. Venous return - Wikipedia

    en.wikipedia.org/wiki/Venous_return

    Venous return curves showing the normal curve when the mean systemic filling pressure (Psf) is 7 mm Hg and the effect of altering the Psf to 3.5, 7, or 14 mm Hg. Hemodynamically, venous return (VR) to the heart from the venous vascular beds is determined by a pressure gradient (venous pressure - right atrial pressure) and venous resistance (RV ...

  6. Vascular resistance - Wikipedia

    en.wikipedia.org/wiki/Vascular_resistance

    As an example: if systolic blood pressure = 120 mmHg, diastolic blood pressure = 80 mmHg, right atrial mean pressure = 3 mmHg and cardiac output = 5 L/min, Then mean arterial pressure = 2 x diastolic pressure + systolic pressure/3 = 93.3 mmHg, and SVR = (93 - 3) / 5 = 18 Wood units, or equivalently 1440 dyn·s/cm 5.

  7. Standard temperature and pressure - Wikipedia

    en.wikipedia.org/wiki/Standard_temperature_and...

    However, a common temperature and pressure in use by NIST for thermodynamic experiments is 298.15 K (25 °C, 77 °F) and 1 bar (14.5038 psi, 100 kPa). [ 4 ] [ 5 ] NIST also uses 15 °C (288.15 K, 59 °F) for the temperature compensation of refined petroleum products, despite noting that these two values are not exactly consistent with each other.

  8. Central venous pressure - Wikipedia

    en.wikipedia.org/wiki/Central_venous_pressure

    pressure range (in mmHg) [5] Central venous pressure: 3–8 Right ventricular pressure: systolic: 15–30 diastolic: 3–8 Pulmonary artery pressure: systolic: 15–30 diastolic: 4–12 Pulmonary vein/ Pulmonary capillary wedge pressure. 2–15 Left ventricular pressure: systolic: 100–140 diastolic: 3–12

  9. Bar (unit) - Wikipedia

    en.wikipedia.org/wiki/Bar_(unit)

    Atmospheric air pressure where standard atmospheric pressure is defined as 1013.25 mbar, 101.325 kPa, 1.01325 bar, which is about 14.7 pounds per square inch. Despite the millibar not being an SI unit, meteorologists and weather reporters worldwide have long measured air pressure in millibar as the values are convenient.