How many breaths per minute should a patient be administered during ventilation during CPR?

• A. 6
• B. 10
• C. 12
• D. 15

Answer: (B)

During CPR, ventilation should support oxygen delivery without interrupting chest compressions or blowing too much air into the lungs too quickly. In veterinary practice, a rate of about ten breaths per minute (one breath every six seconds) is favored because it provides enough oxygen while keeping intrathoracic pressures from rising too high, which could hinder venous return and reduce perfusion to the heart and brain. Delivering more than this can lead to hyperventilation, increased intrathoracic pressure, and poorer circulation, while fewer breaths may not meet metabolic needs during resuscitation. So, ten breaths per minute hits a practical balance for effective ventilation during CPR.