Q:1In infant CPR, which head position is recommended for opening the airway?
The sniffing position slightly extends the infants head and is the recommended method for opening the airway during infant CPR. Hyperextension can actually close the airway.
Q:2Which factor is the most important determinant of survival likelihood in ventricular fibrillation cardiac arrest?
The time to defibrillation is the single most crucial factor for survival from ventricular fibrillation. For every minute defibrillation is delayed, survival decreases significantly.
Q:3Why is minimizing interruptions in chest compressions during CPR critical?
Interrupting compressions causes a critical drop in blood pressure to the heart and brain, which is difficult to restore once compressions resume. Minimize pauses.
Q:4What is the current primary sequence for basic life support (BLS) steps for a single rescuer treating an adult?
The current BLS sequence prioritizes chest compressions (C) first to address the lack of blood flow, followed by opening the airway (A) and providing rescue breaths (B).
Q:5Where should chest compressions be performed on an infant?
Infant compressions are performed on the lower half of the sternum, just below the nipple line, to avoid injury to the abdomen and vital organs.
Q:6Which of the following is a situation where moving the patient during CPR is appropriate?
Moving the patient is necessary if they are in danger, lying face down, or on a surface too soft for effective compressions. Always move quickly to minimize pauses.
Q:7In two-rescuer CPR for an adult, how often should providers switch roles to prevent fatigue?
Rescuers should change roles every two minutes or after five cycles of compressions and ventilations. This minimizes fatigue and ensures high-quality compressions.
Q:8What is the current recommendation regarding the routine application of cricoid pressure during cardiac arrest?
Cricoid pressure is no longer routinely recommended. It may interfere with ventilation and delay intubation, and its effectiveness in preventing aspiration is unproven.
Q:9In two-rescuer CPR for a child (ages 1 to puberty), what is the correct compression to breath ratio?
For a child during two-rescuer CPR, the ratio is 15 compressions followed by 2 breaths. This provides more frequent ventilations to account for pediatric respiratory causes.
Q:10If you suspect a victim has a spinal (c-spine) injury, what is the best method for opening the airway?
The jaw thrust is the recommended technique for opening the airway in a victim with a suspected spinal injury. It minimizes neck movement to reduce the risk of further damage.
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