A systolic pressure of 40 mm Hg typically implies a mean pressure of more than 25 mm Hg.

For example, herring contains mercury levels at about 0.1 parts per million, while shark contains mercury levels greater than 1 part per million.

Ah, life and money both behave like... loose quicksilver in a nest of cracks.

High blood pressure is said to be present if it is often at or above 140 90 mmHg.

Significance By observing the mercury in the column while releasing the air pressure with a control valve, one can read the values of the blood pressure in mm Hg.

Fish and shellfish concentrate mercury in their bodies, often in the form of methylmercury, a highly toxic organic compound of mercury.

Oxygen Supplemental oxygen is recommended in those with low oxygen levels at rest (a partial pressure of oxygen of less than 50 55 mmHg or oxygen saturations of less than 88 ).

c. 1310 Pseudo Geber, an anonymous Spanish alchemist who wrote under the name of Geber, publishes several books that establish the long held theory that all metals were composed of various proportions of sulfur and mercury.