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
Investigation of choice in postcoital bleeding in a 60-year-old lady is:
assistant
The correct answer is  An old lady presenting to OPD with post coital bleeding with a leison visible on cervix- raises the suspium carcinoma cervix in this case because CIN is asyntomatic . In such cases pap smear is of no use and directly biopsy should be done. Since lesion is visible we will go for punch biopsy.
Investigation Protocol for Diagnosis of Carcinoma Cervix: