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  2. Millimetre of mercury - Wikipedia

    en.wikipedia.org/wiki/Millimetre_of_mercury

    It is denoted mmHg [3] or mm Hg. [ 4 ] [ 2 ] Although not an SI unit, the millimetre of mercury is still often encountered in some fields; for example, it is still widely used in medicine , as demonstrated for example in the medical literature indexed in PubMed . [ 5 ]

  3. Vascular resistance - Wikipedia

    en.wikipedia.org/wiki/Vascular_resistance

    Vascular resistance is the resistance that must be overcome for blood to flow through the circulatory system.The resistance offered by the systemic circulation is known as the systemic vascular resistance or may sometimes be called by another term total peripheral resistance, while the resistance caused by the pulmonary circulation is known as the pulmonary vascular resistance.

  4. Mercury pressure gauge - Wikipedia

    en.wikipedia.org/wiki/Mercury_pressure_gauge

    The ubiquity of this instrument led to mmHg becoming a common unit of measure of pressure. It is also related to another unit of pressure, the torr. The mmHg is not an SI unit but is still sometimes found in use, particularly in medicine. [6] In SI units, 1 mmHg is approximately 133 Pa . [7]

  5. Pulse pressure - Wikipedia

    en.wikipedia.org/wiki/Pulse_pressure

    Pulse pressure is calculated as the difference between the systolic blood pressure and the diastolic blood pressure. [3] [4]The systemic pulse pressure is approximately proportional to stroke volume, or the amount of blood ejected from the left ventricle during systole (pump action) and inversely proportional to the compliance (similar to elasticity) of the aorta.

  6. Torr - Wikipedia

    en.wikipedia.org/wiki/Torr

    1 Torr = 0.999 999 857 533 699... mmHg; 1 mmHg = 1.000 000 142 466 321... Torr; The difference between one millimeter of mercury and one torr, as well as between one atmosphere (101.325 kPa) and 760 mmHg (101.3250144354 kPa), is less than one part in seven million (or less than 0.000015%). This small difference is negligible for all practical ...

  7. Blood gas tension - Wikipedia

    en.wikipedia.org/wiki/Blood_gas_tension

    P a O 2 – Partial pressure of oxygen at sea level (160 mmHg in the atmosphere, 21% of standard atmospheric pressure of 760 mmHg) in arterial blood is between 75 mmHg and 100 mmHg. [4] [5] [6] Venous blood oxygen tension (normal) P v O 2 – Oxygen tension in venous blood at sea level is between 30 mmHg and 40 mmHg. [6] [7]

  8. Montevideo units - Wikipedia

    en.wikipedia.org/wiki/Montevideo_units

    Peak uterine pressure amplitudes were 50 mmHg; during the 10 minute period of measurement 3 contractions occurred; subtract the resting tone from the peak intensity of the contraction; add the 3 contractions together to get the MVUs; Montevideo units are calculated by obtaining the peak uterine pressure amplitude and subtracting the resting tone.

  9. Intraocular pressure - Wikipedia

    en.wikipedia.org/wiki/Intraocular_pressure

    A patient in front of a tonometer. Intraocular pressure (IOP) is the fluid pressure inside the eye. Tonometry is the method eye care professionals use to determine this. IOP is an important aspect in the evaluation of patients at risk of glaucoma. [1]