Epinephrine is used to treat cardiac arrest and status asthmaticus because of which of the following actions?

Increased speed of conduction and gluconeogenesis

Bronchodilation and increased heart rate, contractility, and conduction

Increased vasodilation and enhanced myocardial contractility

Bronchoconstriction and increased heart rate

Answer and Explanation

The Correct Answer is B

Choice A rationale: Epinephrine does increase the speed of conduction, but it does not significantly contribute to gluconeogenesis.
Choice B rationale: Epinephrine is used in cardiac arrest to increase heart rate, contractility, and conduction. In asthma, it causes bronchodilation.
Choice C rationale: While epinephrine can cause some vasodilation, it is not a primary indication for its use in cardiac arrest or status asthmaticus.
Choice D rationale: Epinephrine causes bronchodilation, not bronchoconstriction.

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Correct Answer is A

Explanation

Choice A rationale: Abstinence syndrome (withdrawal) from alcohol is characterized by symptoms such as muscle cramps, tremors, and tachycardia.
Choice B rationale: Hyperventilation, chest pain, and ptosis are not typical manifestations of alcohol withdrawal.
Choice C rationale: Increased urination, dry cough, and hypothermia are not characteristic of alcohol withdrawal.
Choice D rationale: Epistaxis, ascites, and exophthalmos are not specific to alcohol withdrawal and may indicate other health issues.

A. Metoprolol B. Acetaminophen C. Lisinopril D. Insulin

Correct Answer is A

Explanation

Choice A rationale: Prednisone can potentiate the effects of beta-blockers like metoprolol, and dose adjustments may be necessary to avoid excessive bradycardia.
Choice B rationale: Acetaminophen is not typically affected by prednisone in a way that requires dose adjustment.
Choice C rationale: Lisinopril is not typically affected by prednisone in a way that requires dose adjustment.
Choice D rationale: Insulin may need adjustment due to the hyperglycemic effects of prednisone.

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Epinephrine is used to treat cardiac arrest and status asthmaticus because of which of the following actions?

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