_____ is the number one preventable cause of respiratory disease

Which of the following signs has the potential for the most immediate life-threatening consequences?

a. Deformity of the femur b. An open fracture of the forearm c. Dislocation of two fingers d. Crepitus in the mid-humerus

Which of the following office procedures should be followed if the physician is not in the office when an emergency phone call comes in? 

A. Make an appointment as soon as possible B. Instruct the patient to call another physician C. Instruct the caller to dial 911 for an ambulance D. take a detailed history of the patient's symptoms E. Tell the patient the physician will call back as soon as possible