If a choking victim becomes unresponsive and pulseless, CPR should begin immediately, starting with compressions.

Naloxone should only be administered if opioid overdose is suspected.

When a shockable rhythm is detected, defibrillation should be performed as soon as possible.

Rescue breathing is recommended for victims with a pulse but inadequate breathing.

Rescuers should switch every 2 minutes (or 5 cycles of compressions) to maintain high-quality CPR.

Most AEDs are programmed to reanalyze the heart rhythm every 2 minutes.

The recommended compression rate is 100-120 compressions per minute.

Switching roles every 2 minutes ensures high-quality compressions without fatigue.

Chest compressions maintain circulation and deliver oxygenated blood to the brain and heart.

High-quality CPR requires minimizing interruptions to maintain circulation.

AED pads should be placed at least 1 inch away from a pacemaker to ensure proper function.

Rescue breaths should be given before starting chest compressions in drowning victims.

AED pads should be placed at least 1 inch away from a pacemaker to avoid interference.

For infants, responsiveness is assessed by tapping the bottom of the foot and shouting.

Shifting the uterus to the left reduces pressure on the inferior vena cava, improving circulation.

Chest compressions keep oxygenated blood circulating to the brain and heart until normal function is restored.

For children, compress the chest at least 1/3 of its diameter (about 2 inches or 5 cm).

Agonal breathing is a sign of cardiac arrest and CPR should be initiated.

Adult chest compressions should be at least 2 inches (5 cm) deep.

For two-rescuer pediatric CPR, the correct compression-to-ventilation ratio is 15:2.

For suspected spinal injury, the jaw thrust maneuver should be used instead of head tilt-chin lift.

Excessive ventilation can cause complications like gastric inflation.

Ventilations should be given every 6 seconds when an advanced airway is in place.

Unlike adults, the most common cause of cardiac arrest in infants and children is respiratory failure leading to hypoxia.

For single-rescuer infant CPR, use two fingers just below the nipple line to perform compressions.

High-quality chest compressions are the top priority in cardiac arrest, with ventilation as a secondary focus.

Once an advanced airway is in place, continuous compressions should be given at 100-120 per minute without pausing for breaths.

Defibrillation should be performed as soon as a shockable rhythm is detected by the AED.

Switching roles every 2 minutes prevents rescuer fatigue and minimizes interruptions.

Agonal breathing is a sign of cardiac arrest and CPR should be initiated.

Over-ventilation can increase intrathoracic pressure, reducing venous return and cardiac output.

Excessive ventilation can cause complications like gastric inflation.

If a choking victim becomes unresponsive, emergency services should be activated, and CPR should begin immediately.

Breaths should be delivered over 1 second each to produce visible chest rise.

In a hospital setting, bag-mask ventilation is the preferred method for delivering rescue breaths.

The first step after turning on an AED is attaching the electrode pads.

The carotid artery is the preferred site for pulse assessment in unresponsive adults.

CPR should continue until the patient shows signs of life, an AED prompts a shock or no shock, or another trained provider takes over.

If the patient has a pulse but is not breathing, rescue breathing should be provided with continuous monitoring.

Switching roles every 2 minutes minimizes interruptions and maintains high-quality CPR.

In BLS, medication administration is not a designated role—this falls under ACLS-level care.

The correct compression depth for adult CPR is at least 2 inches (5 cm).

Pediatric AED pads should be used for children under 8 years old, if available.

To minimize interruptions in care, breathing and pulse checks should be performed simultaneously, taking no more than 10 seconds.

Rescue breathing is recommended for victims with a pulse but inadequate breathing.

High-quality CPR for children requires compressing at least 1/3 of the chest depth (about 2 inches or 5 cm).

Encourage the victim to keep coughing instead of immediately intervening.

Early defibrillation is the most critical step in increasing survival rates for patients in cardiac arrest with a shockable rhythm.

Rescue breaths should be given before starting chest compressions in drowning victims.

The recommended compression rate is 100-120 compressions per minute.

After a shock is delivered, chest compressions should resume immediately to maintain circulation.

The best way to ensure effective ventilation is by observing visible chest rise with each breath.

For two-rescuer infant CPR, the correct ratio is 15:2, not 30:2.

For suspected spinal injuries, the jaw thrust maneuver is used instead of head tilt-chin lift to maintain spinal alignment.

For a responsive choking adult, abdominal thrusts (Heimlich maneuver) should be used.