Dental OSCE (Objective Structured Clinical Examination) Practice Exam

In CPR, where should the palm be placed for chest compressions?

1. Center of the abdomen

2. Lower sternum

3. Upper left chest

4. Right side of the chest

The correct answer is: Lower sternum

The palm should be placed at the lower sternum for effective chest compressions during CPR. This location is crucial because it allows for the maximum generation of pressure needed to compress the heart effectively, facilitating blood flow during cardiac arrest. When compressions are performed at the lower sternum, the rescuer can utilize their body weight more effectively, and the alignment ensures that compressions are directed towards the center of the chest, where the heart is located. This positioning minimizes the risk of injury to the ribs and abdominal organs and maximizes the efficacy of the compressions, which should be delivered at a rate of 100 to 120 compressions per minute. Other locations mentioned, such as the center of the abdomen or sides of the chest, do not allow for adequate chest compression depth and may lead to ineffective circulation. Thus, using the lower sternum is critical for proper technique during CPR.