First-degree burns affect all three of the skin layers

Prolonged pregnancy is defined as more than:

a. 43 completed weeks of gestation. b. 40 completed weeks of gestation. c. 41 completed weeks of gestation. d. 42 completed weeks of gestation.

Name the biggest cause of unnecessary radiation overexposure

having the kVp set too high taking radiographs just because "the patient is due" taking a full-mouth series every 3 years using slow-speed film