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

Switching roles every 2 minutes prevents rescuer fatigue and ensures continuous, high-quality CPR.

High-quality CPR requires minimizing interruptions to maintain circulation.

A firm surface is needed to ensure effective compressions.

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

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

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

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

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

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

Effective compressions allow full chest recoil, ensuring proper circulation.

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.

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

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

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

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

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

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

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

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

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

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

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

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

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

Encourage the victim to keep coughing instead of immediately intervening.

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

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

High-quality CPR requires minimizing interruptions to maintain circulation.

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

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

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

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

Encourage the victim to keep coughing instead of immediately intervening.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

A firm surface is needed to ensure effective compressions.

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

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

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

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