100% Pass
Phenylephrine - ✔✔Potent alpha 1 agonist
Increase SVR without HR or contractility effects
Drug of choice for neurogenic shock
Phenylephrine Cautions - ✔✔Reflex bradycardia
Increase in afterliad which may worsen HF
Not good combo with other pressors
Vasopressin - ✔✔Weak presser
Good for septic shock
Few s/e and no impact on CO
Norepinephrine - ✔✔Main neurotransmitter of SNS
Potent alpha 1 stimulant (primary)
Beta 1 stimulation at higher doses (secondary)
Minimal changes in CO
Norepinephrine Cautions - ✔✔Increased after load may worsen cardiac LV dysfunction
MI
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