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Questions and Answers
What is the therapeutic class of metoprolol (Lopressor)?
What is the therapeutic class of metoprolol (Lopressor)?
- Beta blockers
- Antihypertensives (correct)
- Antianginals (correct)
- Diuretics
What is the pharmacologic class of metoprolol (Lopressor)?
What is the pharmacologic class of metoprolol (Lopressor)?
Beta blockers
Which of the following are indications for metoprolol (Lopressor)?
Which of the following are indications for metoprolol (Lopressor)?
- Angina pectoris (correct)
- Stable HF (correct)
- HTN (correct)
- Severe hypoactivity
What is the mechanism of action of metoprolol (Lopressor)?
What is the mechanism of action of metoprolol (Lopressor)?
What are the therapeutic effects of metoprolol (Lopressor)?
What are the therapeutic effects of metoprolol (Lopressor)?
Which of the following are major side effects of metoprolol (Lopressor)?
Which of the following are major side effects of metoprolol (Lopressor)?
What is the adult dosage for myocardial infarction when administered via IV?
What is the adult dosage for myocardial infarction when administered via IV?
What nursing intervention should be performed before administering metoprolol (Lopressor)?
What nursing intervention should be performed before administering metoprolol (Lopressor)?
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Study Notes
Metoprolol (Lopressor) Overview
- Metoprolol is classified as an antianginal and antihypertensive medication.
- It belongs to the pharmacologic class of beta blockers.
Indications
- Used for hypertension (HTN) and stable heart failure (HF).
- Treats angina pectoris.
- Prevents and reduces mortality in myocardial infarction (MI) patients.
Mechanism of Action
- Metoprolol blocks beta1-adrenergic receptors in the myocardium, leading to various cardiovascular effects.
Therapeutic Effects
- Lowers blood pressure and heart rate.
- Reduces frequency and severity of angina episodes.
- Decreases cardiovascular mortality rates.
Side Effects
- Major side effects include bradycardia, heart failure, pulmonary edema, and hypotension.
- Common side effects involve fatigue and weakness.
- Visual disturbances such as blurred vision and nasal congestion may occur.
- Musculoskeletal pain can manifest as back pain.
- Genitourinary effects include erectile dysfunction and decreased libido.
- Gastrointestinal issues may present as constipation, diarrhea, or drug-induced hepatitis.
Adult Dose Parameters
- For myocardial infarction via IV: administer three doses of 5 mg every 2 minutes.
- Antianginal and antihypertensive oral dosage ranges from 25 to 400 mg per day.
- IV push should be given undiluted over a period of one minute.
Nursing Interventions
- Assess and record the apical pulse before administering metoprolol; this is crucial for ensuring patient safety and medication efficacy.
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