Medicamentos

ACLS Medications Overview

Introduction to ACLS Medications

• The discussion focuses on medications used in Advanced Cardiovascular Life Support (ACLS) from 2020 to 2025 guidelines.

• Emphasis is placed on understanding the purpose of these medications, primarily for restoring spontaneous circulation and stabilizing cardiac electrical activity.

Adrenaline (Epinephrine)

• Adrenaline is an adrenergic agonist that stimulates alpha and beta receptors, leading to vasoconstriction, which increases coronary and cerebral perfusion pressure.

• Recommended dosage is 1 mg (1 cc) diluted in 1 ml, administered via intravenous, intraosseous, or endotracheal routes during cardiac arrest scenarios.

• Administer adrenaline every 3 to 5 minutes during cardiopulmonary resuscitation (CPR), not limited to specific intervals but within this range.

CPR Timeline and Administration

• A timeline illustrates patient assessment at minute zero: checking for breathing and pulse before starting chest compressions if absent.

• At two minutes into CPR, evaluate the patient's status again; if no improvement, administer adrenaline while ensuring proper vascular access.

• For endotracheal administration of adrenaline, the dose doubles to 2 - 2.5 cc/ml diluted in saline with air from the syringe for effective delivery.

Summary of Adrenaline's Role

• Adrenaline is crucial in CPR as it enhances vascular resistance and coronary flow while increasing defibrillation success rates during cardiac arrest situations.

Amiodarone: Key Antirhythmic Medication

Introduction to Amiodarone

• Amiodarone is a Class III antiarrhythmic drug essential for advanced management of cardiac arrest cases involving ventricular fibrillation or pulseless ventricular tachycardia.

Dosage Guidelines

• Initial recommended dose is 300 mg administered intravenously or intraosseously as a bolus; a second dose of 150 mg can be given if needed without exceeding two doses total per event.

Alternative Use of Lidocaine

• Lidocaine serves as a backup antiarrhythmic medication under similar conditions as amiodarone; initial dosing ranges from 1 - 1.5 mg/kg with subsequent doses halved until reaching a maximum cumulative limit of 3 mg/kg total across all administrations.

Visual Aid Reference

• An image illustrating ventricular fibrillation shows disorganized rhythm patterns indicative of critical arrhythmias requiring immediate intervention through medications like amiodarone or lidocaine for stabilization during resuscitation efforts.

Medication Protocols in Cardiac Arrest Management

Introduction to Amiodarone Usage

• Amiodarone is introduced as a medication for treating defibrillable rhythms during cardiac arrest.

• It is specifically used for ventricular fibrillation or pulseless ventricular tachycardia, observable via a defibrillator monitor.

Administration of Medications

• Initial steps include performing chest compressions and ventilation; the first dose of adrenaline (1 cc) is administered after 2 minutes if the patient shows no response.

• If the patient remains unresponsive at the 8-minute mark, amiodarone is re-administered due to persistent defibrillable rhythm.

Dosing Guidelines

• Adrenaline can be given every 3 to 5 minutes, while amiodarone's initial dose is 300 mg, followed by a second dose of half that amount if needed.

• Lidocaine may also be used as an antiarrhythmic alternative with specific dosing guidelines: starting at 1 mg and halving subsequent doses until reaching a maximum of 3 mg.

Bicarbonate Use in Resuscitation

• Bicarbonate is not routinely recommended for cardiac arrest management but may be considered in cases of hyperkalemia; recent guidelines (2020-2025) reflect this change.

Role of Atropine and Fluid Administration

• Atropine, an anticholinergic drug, treats asymptomatic bradycardia by inhibiting acetylcholine action on heart receptors, increasing heart rate and cardiac output.

• Recommended atropine dosage ranges from 0.1 mg to a maximum of 0.5 mg for children; fluid administration may also be indicated based on patient needs (e.g., hypovolemia).

Summary and Key Takeaways

• Understanding which medications are critical during resuscitation efforts and their appropriate timing enhances survival outcomes in cardiac arrest scenarios.