You need to contact the same doctor again. More tests/ detailed history are required for your mum.I got this email today morning addressing my Mom only:
Dear Mr./Ms. xxxxxxxxxxxx
This is in reference to your visa application for Canada.
Further medical information is required before a decision can be reached. Details have been sent to your eMedical file regarding the medical information required. Please return to see the Panel Physician who performed your immigration medical examination or to another e-Medical enabled Panel Physician (http://www.cic.gc.ca/pp-md/pp-list.aspx). The Panel Physician will arrange for the additional medical tests to be carried out and will forward the results directly to this office.
Please contact PP for an appointment to comply with this request at the earliest. Failure to do so may result in the closing of your Immigration medical file, which may result in the refusal of your application.
Please quote your IME number on all correspondence with this office.
Sincerely,
Officer
Regional Medical Office
High Commission of Canada
Chanakyapuri, P.O. Box 5209
New Delhi-110021, India