Abstract: A screen for use with a fluid/specimen collector and a combination screen and fluid/specimen collector for collecting and trapping patient specimen(s) during a medical procedure comprising a collecting trap for receiving fluid/specimen(s) therein, a lid, an intake member for transferring fluid/specimen(s) from a patient into the collecting trap, and a waste exit member. The screen of the invention comprises an insert member capable of being placed within the lid of the fluid/specimen collector. The insert member includes an intake aperture, enabling the intake member to extend through to transfer fluid/specimen(s) from a patient into the collecting trap. The insert also includes a plurality of straining apertures capable of allowing excess fluid to pass through and exit the collector through the waste exit member while preventing specimens from passing through the straining apertures, thus trapping these specimens within the collector for easy retrieval for subsequent medical testing.