Alcohol swabbing before an injection is a long-standing, widely used infection control practice. It’s thought that prepping the skin using alcohol swabs removes bacteria that could be pushed into the puncture and might cause an infection.
The fecal immunochemical test (iFOBT or FIT) uses antibodies to find blood in stool. Research shows that FIT testing is better at finding colorectal cancers than gFOBT testing
