Test for bile salts ( Hay's test )

Test for bile salts ( Hay's test )

Apparatus

Test tube (capacity 50 or 100ml), Sulphur powder, urine.

Principle

If bile salts present in urine lower the surface tension of the urine.

Procedure

  • Test tube fill  2/3 with urine.
  • Sprinkle finely sulphur powder over it.
Hay's test, test for bile salts, Aas, alfaaz-e-aas
Hay's test

Results

If bile salts present in urine then sulphur powder sinks, otherwise floats.

Cause for bile salts in urine

  • Obstructive jaundice
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