True or false: CPR can cause petechiae.

CPR can indeed lead to the development of petechiae, which are small, pinpoint red or purple spots on the body caused by bleeding under the skin. During CPR, particularly in situations involving chest compressions, there is a significant amount of physical force applied to the chest. This can create pressure changes within the body, particularly in the capillaries, leading to ruptures and subsequent bruising, which manifests as petechiae.

While the likelihood of petechiae occurring can vary based on individual circumstances, the general understanding in medical practice is that the vigorous nature of CPR can result in these skin changes. Therefore, the assertion that CPR can cause petechiae is accurate because the mechanical stress exerted during chest compressions can lead to micro-trauma in the blood vessels, causing these small spots.