How could someone failing to document treatment cause problems for the patient

Answer: Failing to document treatment could lead to over-medication or other serious problems for the patient.

Explanation:

I'll use an example from the work of a group home, caring for individuals with intellectual disabilities and various health conditions (such as potentially having seizures). If medications aren't given as prescribed and when prescribed - and documented that they've been given - it could lead to an individual getting a double dose of a med (if another staff member thinks the dose was missed). Or it could mean meds doses do indeed get missed, which could put an individual at risk for a seizure or other serious medical reaction.

It can delay the time for medicine or the right treatment to get to "said" patient. Potentially being a life threatening situation / Long term issue. Due to human error, the patient wouldn't improve and possibly get worse, and the doctor might not notice till next meeting.

(That's in general what I thought the answer could be. Also heh, you from health science class as well?)