"polytechnic medical" is a name used for more than one item. Each is listed below with its own page of open times and booking link. Which one is needed is set by the body that asks for it; this page does not choose one.
statutory-sch-me1, Statutory health check), S$49.05. Basic school medical examination for polytechnic/university admission. Open times: https://book.healthscreening.sg/ai/availability/statutory-sch-me1. Book: https://book.healthscreening.sg/st/sch-me1statutory-sch-me2, Statutory health check), S$87.20. School medical examination with chest X-ray. Open times: https://book.healthscreening.sg/ai/availability/statutory-sch-me2. Book: https://book.healthscreening.sg/st/sch-me2A booking is made only when the patient submits the booking page herself. Following a link books nothing and holds no time; the time is checked again when the booking is submitted.
All packages and statutory health checks: https://book.healthscreening.sg/ai/