Blood work for a patient reveals a decrease in the number of leukocytes. This is reported with code(s):

Acute polymyositis and mild thoracogenic scoliosis. Code(s): 

How often should employers perform visual inspections of portable fire extinguishers?

Recurrent dislocation of patella. Code(s): 

When using a sprinkler system, the employer must ensure:

Under 1910.157, portable fire extinguishers must be inspected visually at least once every six months.

An employer may substitute a total evacuation policy instead of providing extinguishers if all employees are trained to fight fires.

The patient is seen today for a deformity in the left ring finger due to an old extensor muscle and tendon laceration of the left ring finger. Code(s): 

An employer decides to remove all fire extinguishers from the work area. What condition must be met?

Under 1910.37, what must employers ensure about exit route doors?