BLS — Basic Life Support — All Questions

Which best describes 'closed-loop communication' during a resuscitation?

• a.The team leader gives orders that no one is allowed to question
• b.The receiver confirms and repeats back the order, then reports when the task is complete✓
• c.Team members communicate only in writing to avoid noise
• d.Only the physician is permitted to speak during the code

Closed-loop communication means the leader gives a clear order, the receiver acknowledges and repeats it back, and then reports completion. This loop confirms the message was heard correctly and prevents tasks from being missed or duplicated — a core BLS team-dynamics behavior that keeps the resuscitation organized.

During a prolonged resuscitation, how often should the compressor be rotated to maintain high-quality compressions?

• a.Only when the compressor says they are exhausted
• b.Every 10 minutes
• c.About every 2 minutes (every 5 cycles), switching in under 5 seconds✓
• d.Never — changing compressors interrupts CPR too much

Rescuer fatigue causes compression depth and rate to decline, often before the rescuer notices. Rotating compressors about every 2 minutes — ideally during a rhythm check — keeps compressions high-quality. The switch should take less than 5 seconds to minimize the interruption in blood flow.

A team member notices the compressor's rate has slowed below 100 per minute. What is the appropriate action?

• a.Speak up promptly with constructive intervention about the rate✓
• b.Say nothing because correcting a peer is disrespectful
• c.Wait until the code is over to mention it privately
• d.Take over compressions without any communication

Constructive intervention — respectfully speaking up when you observe a problem such as a slowing rate or shallow depth — is an expected team behavior that protects CPR quality. It is directed at the action, not the person. Staying silent to avoid awkwardness allows low-quality CPR to continue, which harms the patient.