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A hormone that promotes the retention of sodium and water, which may contribute to a rise in blood pressure.
A naturally occuring enzyme that converts angiotensin I to angiotensin II, which is a powerful vasoconstrictor.
The force of blood against the walls of the arteries.
Substances normally manufactured by the body.
Hypertension without a known cause.
Usually defined as a systolic pressure more than 140 mm Hg or a diastolic pressure more than 90 mm Hg.
Low blood potassium.
Low blood sodium.
Isolated Systolic Hypertension
A condition of only an elevted systolic pressure.
Hypertension in which the diastolic pressure usually exceeds 130 mm Hg.
Hypertension in which a direct cause can be identified.