Positive pressure evacuation of smoke is successful for distances of up to ____ feet.

All of the following transfusion-transmitted infections are also considered to be sexually transmitted diseases except

a. Hepatitis C b. Human immunodeficiency virus c. Syphilis d. Toxoplasmosis

Which demographic group(s) is/are most likely to develop myasthenia gravis?

1. African-American females >40 years of age 2. White males <40 years of age 3. Females 15 to 35 years of age 4. Males 40 to 70 years of age a. 1 b. 4 c. 2, 3 d. 3, 4