I am a new monitor have some queries regarding source data:

1. Must amendments made to the source data be initialed and dated?
2. Whilst conducting monitoring, it appears that source documents such as ECG traces, blood results etc are often stored in different locations/programmes. These programmes are not all accessible to monitors. It is recommended that trial teams have all trial-related results printed and filed in 1 location, instead of having the monitor sit with a member of the trial team in order to view the results in the various programmes?

Thank you for your suggestions.