Watson Swartz Test is usually used to diagnose -: (A) Hemochromatosis, (B) Acute intermittent porphyria, (C) Wilson's disease, (D) All of the above
Answer is B. Ans. is 'b' Acute Intermittent porphyria (Ref Taber's Dictionary, p 2154, Nelson 17/e, 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 "