What RBC inclusions cannot be seen with Romanowsky stain but can be visualized with supravital stain?

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

When using film, the corrective action for a radiograph that displays a "tire track" pattern is to

A) thoroughly clean the rollers of the automatic processor. B) position film intraorally with the tube side toward the source of radiation. C) carefully separate the lead foil from the film packet before processing. D) lower the temperature of the processing chemicals.