<prompt> Watson Swartz Test is usually used to diagnose -HemochromatosisAcute intermittent porphyriaWilsons diseaseAll of the above  <response>: Ans. is b Acute Intermittent porphyria Ref Tabers Dictionary, p 2154, Nelson 17e, p 501.Watson Swartz TestIt is a test used in acute intermittent porphyria to differentiate between porphobilinogen from urobilinogen.This test is widely used as a screening test for urinary porphobilinogen. While this test is highly sensitive it is neither specific nor quantitative and results must be confirmed with chromatography 