11 Questions
What is the primary metabolic effect of NE on blood sugar concentrations?
Increase in glucose concentrations
Which receptor activation leads to glycogenolysis by NE?
Alpha-1 adrenergic receptor
Why does NE increase blood pressure more than Epinephrine at similar doses?
Lack of vasodilation in the skeletal vasculature
At similar doses, which catecholamine is more likely to elicit baroreceptor reflex at lower doses?
Phenylephrine
In which situation is Epinephrine commonly used therapeutically?
Anaphylactic shock with hypotension
What is one of the specific therapeutic uses of Epinephrine mentioned in the text?
Prolonging the effects of a local anesthetic
Which medication may be administered topically to control localized hemorrhage?
Epinephrine
For what condition can Norepinephrine be used therapeutically?
Prolonged hypotension following spinal anesthesia
Which of these medications is NOT primarily used for treating severe hypersensitivity reactions?
Norepinephrine
Which receptor type is responsible for eliciting most of the pharmacological effects of Norepinephrine?
Alpha-1 adrenergic receptor
What effect does Epinephrine have on cutaneous blood flow?
Decreases it
Test your knowledge on the pharmacology of norepinephrine and dopamine, focusing on their effects on different vascular beds and circulation in conditions like sepsis and cardiac arrest. Explore the mechanisms of action and differences in renal effects between the two drugs.
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