An AED analyzes the heart rhythm and delivers a shock if a shockable rhythm is present.

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

High-quality chest compressions help circulate oxygenated blood to the brain and heart.

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

The two-thumb encircling hands technique is the preferred method for two-rescuer infant CPR, as it provides better depth and control.

Naloxone should only be administered if opioid overdose is suspected.

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

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

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

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

The two-thumb encircling technique is preferred for two-rescuer infant CPR, while single rescuers typically use two fingers.

Equal chest rise confirms proper ventilation and airway placement.

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

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

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

Agonal gasps are not normal breathing and should not delay CPR.

Infant chest compressions should be at least 1/3 of the chest depth, approximately 1.5 inches (4 cm).

The first step is to turn on the AED before attaching pads and following voice prompts.

If a patient has a pulse but is not breathing adequately, healthcare providers should provide rescue breathing without chest compressions.

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

Before starting CPR, check for a pulse for no more than 10 seconds to determine if compressions are needed.

For adults with an advanced airway, ventilation should be given at a rate of 1 breath every 6 seconds.

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

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

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

The E-C clamp technique ensures a tight seal while lifting the jaw for an open airway.

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

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

For adult CPR, compressions should be performed with two hands, one on top of the other, placed on the lower half of the sternum.

An AED is used on patients who are unresponsive, pulseless, and not breathing.

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

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

Over-ventilation can lead to increased intrathoracic pressure, reducing venous return and cardiac output.

If a choking victim can cough or speak, encourage them to keep coughing rather than immediately performing abdominal thrusts.

Encourage the victim to keep coughing instead of immediately intervening.

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

High-quality CPR for adults requires compressions at least 2 inches deep at a rate of 100-120 per minute.

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

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

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

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

If the AED does not advise a shock, rescuers should immediately resume CPR.

Reassessment should occur every 5 cycles of CPR (about 2 minutes) unless an AED prompts earlier evaluation.

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

A firm surface is needed to ensure effective compressions.

Equal chest rise and fall confirms proper ventilation and airway placement.

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

Gasping (agonal breathing) is not normal breathing and should not delay CPR.

Excessive ventilation can cause complications like gastric inflation.

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

Effective compressions allow full chest recoil, ensuring proper circulation.

If a patient is unresponsive with a suspected airway obstruction, chest compressions should be initiated immediately to help clear the airway.

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

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

Breathing assessment should take no more than 10 seconds to avoid delaying CPR.