a condition in which the arterial blood pressure is abnormally low, which is most commonly experienced when rising from a sitting or lying position (postural or orthostatic hypotension). It occurs after excessive fluid loss (e.g. through diarrhoea, burns, or vomiting) or following severe blood loss (haemorrhage) from any cause. Other causes include myocardial infarction, pulmonary embolism, severe infections, allergic reactions, arrhythmias, acute abdominal conditions (e.g. pancreatitis), Addison's disease, and drugs (e.g. antihypertensive or antipsychotic medication). The patient becomes light-headed, sweats, and may develop impaired consciousness. In severe cases peripheral circulatory failure (cardiogenic shock) develops, with unrecordable blood pressure, weak pulses, and suppression of urine production. The patient is placed flat, with legs elevated, and given oxygen. Fluid and blood are replaced by an intravenous infusion as required. Specific treatment of the cause is provided (e.g. corticosteroids in Addison's disease).

The new mediacal dictionary. 2014.

Игры ⚽ Нужен реферат?

Look at other dictionaries:

  • hypotension — [ ipotɑ̃sjɔ̃ ] n. f. • 1895; de hypo et tension ♦ Méd. Tension artérielle inférieure à la normale; diminution de la tension. Souffrir d hypotension. ⊗ CONTR. Hypertension. ● hypotension nom féminin Hypotension artérielle, diminution pathologique… …   Encyclopédie Universelle

  • Hypotension — artérielle L hypotension artérielle correspond à une pression artérielle systolique inférieure à 90 mmHg (le chiffre le plus élevé des deux lorsque l on prend la pression artérielle). Il existe différentes sortes d hypotension: l hypotension …   Wikipédia en Français

  • hypotension — ► NOUN ▪ abnormally low blood pressure. DERIVATIVES hypotensive adjective …   English terms dictionary

  • hypotension — [hī′pō ten΄shən] n. abnormally low blood pressure hypotensive adj …   English World dictionary

  • Hypotension — In physiology and medicine, hypotension refers to an abnormally low blood pressure. This is best understood as a physiologic state, rather than a disease. It is often associated with shock, though not necessarily indicative of it. Hypotension is… …   Wikipedia

  • hypotension — /huy peuh ten sheuhn/, n. Pathol. 1. decreased or lowered blood pressure. 2. a disease or condition characterized by this symptom. Also called low blood pressure. [1890 95; HYPO + TENSION] * * * or low blood pressure Condition in which blood… …   Universalium

  • Hypotension — Als Hypotonie oder auch Hypotension (aus dem Griechischen) wird in der Medizin eine Spannung oder ein Druck unterhalb der Norm bezeichnet. Hypotonie gibt es z. B. des Muskeltonus, der Gehirnflüssigkeit (zerebrale H.), des Augeninnendruckes (H.… …   Deutsch Wikipedia

  • hypotension — 1. Subnormal arterial blood pressure. SYN: hypopiesis. 2. Reduced pressure or tension of any kind. [hypo + L. tensio, a stretching] arterial h. h. (1). idiopathic orthostatic …   Medical dictionary

  • hypotension — noun The disease or disorder of abnormally low blood pressure. Ant: hypertension See Also: hypovolemia, orthostatic hypotension …   Wiktionary

  • Hypotension — Niederdruck; Hypotonie (fachsprachlich); niedriger Blutdruck * * * Hy|po|ten|si|on 〈f. 20; Med.〉 = Hypotonie (2) * * * Hy|po|ten|si|on, die; , en [zu lat. tensio = Spannung] (Med.) …   Universal-Lexikon

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”