Question

how can teamwork improve the effectiveness of cpr?
a. by performing cpr slower
b. by limiting the number of responders involved
c. by switching roles to maintain compression quality
d. by allowing breaks during compressions
how does an aed increase the chance of survival?
a by restoring the heart’s rhythm
b by diagnosing medical conditions
c by stabilizing breathing
d by performing chest compressions

Explanation:

First Question: How can teamwork improve the effectiveness of CPR?

• Option a: Slower CPR is not effective, so this is incorrect.
• Option b: Limiting responders would not help teamwork; more coordination with proper roles is better, so incorrect.
• Option c: Switching roles (e.g., one doing compressions, another giving breaths, switching to avoid fatigue) helps maintain compression quality, which is key in CPR. This makes sense.
• Option d: Breaks during compressions reduce effectiveness, so incorrect.

• Option a: AEDs analyze the heart rhythm and deliver a shock to restore a normal rhythm, which is crucial for survival in cardiac arrest. This is correct.
• Option b: AEDs don't diagnose medical conditions; they analyze heart rhythm for shockable rhythms, so incorrect.
• Option c: AEDs don't stabilize breathing; that's not their function, so incorrect.
• Option d: Chest compressions are part of CPR, not what an AED does. AEDs deliver shocks, so incorrect.

Answer:

c. By switching roles to maintain compression quality

Second Question: How does an AED increase the chance of survival?