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
Sharp instruments like needle, syringes, scalps hospital waste products etc., are thrown in
assistant
The correct answer is  (Refer: K. Park's Textbook of Preventive and Social medicine, 24th edition, pg no: 830)