Which of the following lung infections is most often caused by bacteria (75 percent of cases)?

An air-fluid level in the pleural space typically indicates:

a. tension pneumothorax. b. hydropneumothorax. c. pleural effusion. d. an aerobic infection.

An exposure-control training program must include information about blood-borne pathogens and CPR.

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