Final answer:
The second dose of amiodarone in an ACLS setting is commonly 150 mg IV over 10 minutes, and should be adjusted based on patient response and in line with medical guidelines.
Step-by-step explanation:
The second dose of amiodarone for ventricular arrhythmia during advanced cardiac life support(ACLS) is typically 150 mg IV over 10 minutes. The initial loading dose of amiodarone should be followed by a maintenance infusion, generally 1 mg/min for the first 6 hours and then 0.5 mg/min thereafter. It is essential to monitor the patient's response and adjust the dosage as required, due to potential side effects such as hypotension and bradycardia. The administration of amiodarone should always be in accordance with institutional protocols and the guidance of a medical professional.