Anaphylactic Shock Treatments Quiz
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Questions and Answers

Adrenaline primarily acts on the heart through its interaction with the beta-2 receptors.

False

The vasoconstriction effect of high doses of adrenaline is mainly mediated by alpha-2 receptors.

False

Epinephrine's effect on bronchial muscles is relaxation, primarily mediated by alpha-2 receptors.

False

Adrenaline causes relaxation of smooth muscles in the gastrointestinal tract, primarily through beta-2 receptors.

<p>True</p> Signup and view all the answers

Alpha-1 receptors are mainly present in the heart and kidneys.

<p>False</p> Signup and view all the answers

Beta-2 receptors play a role in the contraction of the iris radial muscle, leading to mydriasis.

<p>False</p> Signup and view all the answers

Acetylcholine primarily affects beta receptors on blood vessels.

<p>False</p> Signup and view all the answers

Epinephrine is rapidly inactivated in the liver by Monoamine Oxidase (MAO) and Catechol-o-methyltransferase (COMT).

<p>True</p> Signup and view all the answers

Norepinephrine has significant effects on beta-2 receptors.

<p>False</p> Signup and view all the answers

Noradrenaline is used as a vasopressor agent in treating hypotensive states.

<p>True</p> Signup and view all the answers

Propranolol increases heart rate.

<p>False</p> Signup and view all the answers

Atropine is an adrenergic antagonist.

<p>False</p> Signup and view all the answers

Norepinephrine causes vasodilation.

<p>False</p> Signup and view all the answers

Acetylcholine is metabolized by MAO and COMT enzymes.

<p>False</p> Signup and view all the answers

Epinephrine is ineffective when administered orally.

<p>True</p> Signup and view all the answers

Propranolol can be used for the prophylaxis of angina pectoris.

<p>True</p> Signup and view all the answers

Acetylcholine is a non-selective muscarinic and nicotinic agonist.

<p>True</p> Signup and view all the answers

Atropine is a non-selective muscarinic antagonist.

<p>True</p> Signup and view all the answers

Acetylcholine causes vasodilation through the NO pathway on vascular endothelium.

<p>True</p> Signup and view all the answers

Adrenaline is commonly used as a cholinergic agonist in clinical practice.

<p>False</p> Signup and view all the answers

Propranolol acts as a cholinergic antagonist.

<p>False</p> Signup and view all the answers

Noradrenaline mediates its effects through activation of muscarinic receptors.

<p>False</p> Signup and view all the answers

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