Tick the indications for Metronidazole:

Correct Answer: A

Rationale: The correct answer is A because Metronidazole is indicated for intra-abdominal infections, vaginitis, and enterocolitis due to its effectiveness against anaerobic bacteria. Pneumonia, influenza, and use as a disinfectant are not appropriate indications as Metronidazole does not target the specific pathogens associated with these conditions. It is important to use this antibiotic judiciously to avoid resistance and unnecessary side effects.

Correct Answer: B

Rationale: The correct answer is B: Verapamil. Verapamil is a calcium channel blocker used for hypertension and arrhythmias. It can cause constipation as a side effect, which matches the patient's symptoms. Propranolol (A) can cause diarrhea. Diltiazem (C) and nitroglycerin (D) are less likely to cause constipation compared to verapamil.

Correct Answer: B

Rationale: The correct answer is B: Amiodarone. Amiodarone is commonly used intravenously for various cardiac arrhythmias due to its broad-spectrum antiarrhythmic effects. It is effective in treating ventricular and supraventricular arrhythmias. Quinidine (A) is not commonly used intravenously due to potential side effects. Verapamil (C) is a calcium channel blocker mainly used for supraventricular arrhythmias but is not typically given intravenously. Propranolol (D) is a beta-blocker, which is not the first choice for intravenous treatment of arrhythmias compared to Amiodarone.

Correct Answer: D

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Correct Answer: D

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.