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Questions and Answers
What is the primary action of Metoprolol (Lopressor) as a beta blocker?
What is the primary action of Metoprolol (Lopressor) as a beta blocker?
- Causes bronchoconstriction and increases cardiac output
- Blocks alpha-adrenergic receptor sites in the heart
- Decreases heart rate, conduction velocity, and myocardial contractility (correct)
- Increases heart rate and myocardial contractility
Which condition is a contraindication for the use of Metoprolol (Lopressor)?
Which condition is a contraindication for the use of Metoprolol (Lopressor)?
- Hypersensitivity (correct)
- Myocardial Infarction
- Hypertension
- Atrial Fibrillation
What is the recommended adult dose of Metoprolol (Lopressor) for slow IV administration?
What is the recommended adult dose of Metoprolol (Lopressor) for slow IV administration?
- 5 mg at 1-2 min intervals up to 15 mg max (correct)
- 15 mg as a single dose
- 2.5 mg at 3-4 min intervals up to 7.5 mg max
- 10 mg at 5 min intervals up to 30 mg max
What is a potential side effect of Metoprolol (Lopressor) administration?
What is a potential side effect of Metoprolol (Lopressor) administration?
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Study Notes
Metoprolol (Lopressor) Overview
- Metoprolol is a beta-blocker medication primarily used to lower heart rate and reduce blood pressure by blocking beta-1 adrenergic receptors in the heart.
Contraindications
- Asthma is a significant contraindication for using Metoprolol, as it can cause bronchoconstriction due to non-selective beta-blocking effects.
Recommended Dosage
- For slow IV administration, the typical adult dose of Metoprolol is 5 mg, administered at 2 to 5-minute intervals as needed, not exceeding a total of 15 mg.
Potential Side Effects
- Common side effects of Metoprolol include fatigue, dizziness, and bradycardia, which is a condition where the heart beats slower than normal.
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