A female nurse remains in a neurological ward being treated for bleeding on her brain after allegedly being assaulted by a patient in a secure youth mental health unit at Dandenong Hospital. Victoria Police has charged the patient over the September 9 incident despite him allegedly being in the midst of a psychiatric episode when the nurse was injured. It is also understood a wider investigation has been launched into security measures at Monash Health following two separate incidents in which supposedly impenetrable doors have been breached by patients.