JBL Obstetrics and Pediatrics Practice Test

The statement that the chest should be compressed with one or two hands to a depth equal to one-third the diameter of the chest is correct. This depth is crucial because it ensures effective compressions that can generate adequate blood flow to the heart and brain during CPR. For children, the recommended compression depth of one-third the chest diameter typically translates to about 1.5 to 2 inches deep, which is sufficient to create the necessary pressure to circulate blood effectively.

Effective CPR relies on both the depth and rate of compressions, as well as allowing for complete chest recoil after each compression. This recoil is important because it enables the heart to fill with blood between compressions, maximizing the potential for oxygenated blood to reach vital organs. Proper technique, including hand positioning and depth, is critical for ensuring the best possible outcomes in children experiencing cardiac arrest. The other statements may contain incorrect methods or ratios that do not align with current CPR guidelines for children.