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

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

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

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

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

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

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

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

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

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

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

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

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

Encourage the victim to keep coughing instead of immediately intervening.

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

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

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

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

Excessive ventilation can cause complications like gastric inflation.

Once an advanced airway is in place, continuous compressions are given with 1 breath every 6 seconds.

Visible chest rise is the best indicator that rescue breaths are effectively ventilating the lungs.

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

Equal chest rise confirms proper ventilation and airway placement.

Single-rescuer infant CPR follows the 30:2 compression-to-ventilation ratio, just like adults.

Rescuers should switch every 2 minutes to maintain high-quality CPR and prevent fatigue.

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

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

Rescue breathing should be initiated for a patient with a pulse but no normal breathing.

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

Excessive ventilation can cause complications like gastric inflation.

For infants, the correct pulse check location is the brachial artery (inside the upper arm).

High-quality CPR requires minimizing interruptions to maintain circulation.

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

A firm surface is needed to ensure effective compressions.

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

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

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

Pulse checks should be limited to 10 seconds to avoid delaying CPR.

A firm surface is needed to ensure effective compressions.

For a single rescuer, the correct ratio is 30 compressions to 2 breaths.

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

Rescue breathing is the correct response if the patient has a pulse but no breathing.

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

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

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

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

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

Rescue breathing is the correct response if the patient has a pulse but no breathing.

Closed-loop communication ensures that orders are acknowledged and carried out correctly.

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

Clear role assignment and minimizing interruptions optimize CPR quality in a team setting.

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

Visible chest rise confirms that breaths are being delivered effectively.

Naloxone should only be administered if opioid overdose is suspected.

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