See Also: Lange's test(medicine)
Herbal medicine (botanical medicine, herbology, phytomedicine)(health)
de Lange(medicine)
Lange, Dorothea(encyclopedia)
De Lange syndrome(health)
Lange, Jessica(encyclopedia)
Lange-Nielsen, F(medicine)
de lange's syndrome(medicine)
Lange, Carl G(medicine)
Lange, Carl F(medicine)

Lange's test (medicine)


Lange's test


An obsolete, non-specific test for altered proteins in spinal fluid. As originally used by Lange in 1912, the test was thought to be specific for neurosyphilis; however, this proved to be incorrect. Dilutions of spinal fluid are made in saline and to these a colloidal gold solution is added; if altered proteins are present, there is a colour change or precipitate formed. at present, its chief use is to demonstrate cerebrospinal fluid protein abnormalities in multiple sclerosis.

Synonym: gold sol test, Zsigmondy's test.