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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

A firm surface is needed to ensure effective compressions.

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

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

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

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

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

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

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

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

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

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

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

Pulse checks should be performed approximately every 2 minutes when providing rescue breathing.

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

For a choking infant, back slaps and chest thrusts should be used instead of abdominal thrusts.

The best method is to tap the patient and shout to assess for responsiveness.

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

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

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

Each breath should be given over 1 second with just enough volume to see the chest rise.

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

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

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

High-quality CPR requires minimizing interruptions to maintain circulation.

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

If there is any doubt about the presence of a pulse, start chest compressions immediately.

For children with a pulse but no normal breathing, provide rescue breaths at a rate of 12-20 per minute.

Excessive ventilation can cause complications like gastric inflation.

Encourage the victim to keep coughing instead of immediately intervening.

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

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

Excessive ventilation can cause complications like gastric inflation.

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

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

Chest compressions should continue while the AED is charging to maintain circulation.

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

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

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