Lumbago and low back pain are reported with the same code.

A 29-year-old male was seen by his primary care physician for a large boil located on his neck. The physician lanced the boil and expressed a large amount of pus. A sample was sent to the laboratory for culture

The culture yielded heavy growth of a yellow pigmented, beta-hemolytic colony. The Gram stain revealed gram-positive cocci in clusters. The organism was catalase positive and Staphylococcus latex agglutination negative. You would: A) boil a suspension of the organism and repeat the latex agglutination test. B) perform a thermonuclease test. C) report the organism as normal skin flora. D) report the organism as Staphylococcus aureus.

How far above the work area in the darkroom should the safelight be located?

4 feet 2.5 feet 1.5 feet 6–8 inches