Ep.8 - Inotropes and Vasopressors: A, B, and V

Resus Tonight - Critical Care and Emergency Nursing

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5y ago 26:30

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Alpha, beta, V1 and V2 receptor goodness is talked about in this episode. This episode also features Allan turning into The Rock.

Inotropy means increased myocardial contractility
Chronotropy means increased heart rate
Vasopressor means squeezing of the blood vessels
Scott Weingart (reference below) coins a term Inopressor, where some drugs cause all of the above – one such example is epinephrine
Alpha 1 receptors are found in the periphery and are responsible for vasoconstriction
Alpha 2 receptors are in the periphery and are responsible for vasodilation
Beta 1 receptors are primarily in the myocardium and cause ino and chronotropy
Beta 2 receptors are in the lungs and result in bronchodilation
V1 receptors are in the blood vessels
V2 receptors are in the kidneys

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