Nurses are female enemies that appear in Lab. They also appear in Riot and in Studios but in different attire. Nurses wear provocative uniform, high-heel shoes and nurse cap. Their only attack is to stab the player with their HIV syringes to infect him/her. It's worth to mention that when they are killed, their bodies stay for much longer than other monsters, thus extenting the time to collect their souls.
- Nurses cannot be gibbed.
- Nurses that are encountered in Lab have a inscription "Mona Sucks" on their outfit, which is a clear reference to Mona Sax from Max Payne series.