A chest injury in which two or more ribs are fractured in two or more places causes the chest wall on the affected side to rise during expiration. This movement is known as:

Which statement is true regarding driving in inclement weather?

A) Roads are most hazardous in terms of traction near the end of a rainstorm. B) It is best to accelerate when attempting to drive through a large standing puddle. C) Roadways typically freeze over sooner than do bridges and overpasses. D) Stopping on wet pavement takes approximately twice the distance as stopping on dry pavement.

Right ventricular hypertrophy is most commonly caused by

A) atrial fibrillation. B) chronic lung disease. C) hypertension. D) heart attack.