-IBIS-1.5.0-
rx
light therapy
ultraviolet
physical medicine

definition

ultraviolet

1. establish minimal erythemal dose (MED)
a. expose a small area of normal skin
b. place a piece of cardboard with six 1-inch square openings, separated 1 inch apart over the exposed skin area
c. place UV lamp 30 in. away for hot quartz, 1 in. away for cold quartz
d. expose cardboard openings at 5 sec. intervals for hot quartz and 1 sec. intervals for cold quartz
e. the MED is established by noting the cardboard square area where erythema is first perceptible after about an 8-hour period, and then disappears after 24 hours
2. first treatment with MED, then add 15 sec. exposure for each subsequent treatment


footnotes