system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Obermeyer test comes out to be positive in which disease
assistant
The correct answer is  Amino acid Trytophan gives obermeyer test positive.
Hartnup's disease is characterised by impaired absorption of neutral amino acids especially tryptophan.
Thus Tryptophan gets excreted in large amounts and gives positive obermeyer test.