Page and Schroeder's Stages of Histopathogenesis of periodontal diseases were based on ________ models

You are explaining to your EMT partner how he can differentiate tension pneumothorax from a simple pneumothorax. Which of the following would you tell him indicates tension pneumothorax?

A) Jugular venous distension B) Mild to severe shortness of breath C) Decreased lung sounds on affected side D) Tachycardia related to anxiety

Structural engineers are involved with the ongoing rescue efforts, particularly with ensuring safe movement of debris.

Answer the following statement true (T) or false (F)