What is the correct code for mechanically assisted chiropractic manipulation of the sacrum?

Droplet precautions are required for all of the following except:

a. varicella (chickenpox and shingles) c. group A streptococcus b. meningitis d. rhinovirus (colds)

An AP knee projection obtained with the central ray angled too cephalically demonstrates

1. symmetrical femoral condyles. 2. a foreshortened fibular head. 3. the fibular head at a position less than 0.5 inch (1 cm) distal to the tibial plateau. 4. a narrowed or closed femorotibial joint space. a. 1, 3, and 4 only b. 1, 2, and 4 only c. 2 and 3 only d. 1, 2, 3, and 4