Minor test
The Minor test, described by Victor Minor in 1928, is a qualitative medical test that is used to evaluate sudomotor function.Method
is applied to the skin and allowed to air-dry. After drying, the area is dusted with cornstarch or potato flour. Sweating is then encouraged by increased room temperature, exercise, use of a sauna, or pilocarpine.
When sweat reaches the surface of the skin, the starch and iodine combine, causing a dramatic color change, allowing sweat production to be easily visualized.
Some have reported higher sensitivity and fewer drawbacks marking dry skin with water-erasable ink and observing fading.Uses
The Minor test can be used as a diagnostic tool to evaluate underactive and overactive sweating. Can visualize Horner's syndrome.
