Which condition is a contraindication to initiating beta-blocker therapy?

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Prepare for the Dr. High Yield Psychiatry Test. Study with flashcards and multiple choice questions, each with hints and explanations. Ensure success in your exam!

Multiple Choice

Which condition is a contraindication to initiating beta-blocker therapy?

Explanation:
Beta-blockers block beta receptors, and nonselective agents block both β1 in the heart and β2 in the lungs. In asthma, blocking β2 receptors reduces bronchodilation and can provoke bronchospasm or worsen asthma control. This makes asthma an absolute concern when starting a beta-blocker. Hypertension, diabetes, and hyperlipidemia are not contraindications; beta-blockers can be used with appropriate monitoring and selection (for example, cardioselective agents may be chosen with caution in some asthma patients).

Beta-blockers block beta receptors, and nonselective agents block both β1 in the heart and β2 in the lungs. In asthma, blocking β2 receptors reduces bronchodilation and can provoke bronchospasm or worsen asthma control. This makes asthma an absolute concern when starting a beta-blocker. Hypertension, diabetes, and hyperlipidemia are not contraindications; beta-blockers can be used with appropriate monitoring and selection (for example, cardioselective agents may be chosen with caution in some asthma patients).

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