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
A patient presented with headache and flushing He has a family history of his relative having died of a thyroid tumour. The investigation that would be required for this patient would be -
assistant
The correct answer is  This patient is having MEN syndrome more specifically MEN type 2, which includes.
Medullary carcinoma of thyroid and
Pheochromocytoma
Headache and flushing are manifestation of pheochromocytonia which can be diagnosed by measuring catecholamine level in urine or blood