Cardiovascular shock refers to a critical condition that
occurs when a patient’s heart suddenly fails to pump blood as required by the
body. This rare but fatal condition is mostly caused by heart attack and is
linked to high death rate. The fluid administration that forms the firstline of
therapeutic strategy does not offer enough stability for the condition of the
patient, and the adrenergic agents are regularly needed to correct hypertension. Among the most frequently used agents are dopamine and norepinephrine. Both
dopamine and norepinephrine affect the alpha-adrenergic and beta-adrenergic
receptors, though to varying degrees. The effects of alpha-adrenergic receptors
lead to increased vascular tone. However, it could decrease the cardiac output
as well as the regional flow of blood, particularly in cutaneous, renal, and
splanchnic beds.
On the other hand, beta-adrenergic effects assist in the
maintenance of blood flow through inotropic and chronotropic effects as well asincreasing splanchnic perfusion. This stimulation from the betaadrenergiceffects can bring out the unwanted consequences, including an increase in the
cellular metabolism and immunosuppressive effects
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