Dear Friend

No need to give to your PRO from now,

if you are sponsor for your sister.

1. Check the status of your sister medical report from below link
http://www.sch.gov.qa/mcr/En/mcresults.jsp?CSRT=11469852434012831140

2. if you get positive reply. They will send you sms to your mobile (if you registered in METRASH, if not follw this link
http://www.moi.gov.qa/site/english/eServices/index.html

3. get a printout from sch.gov.qa website or METRASH sms for support document.

4. Go to immigiration office at your preffered location in anywhere in qatar.

5. Show your sister's VISIT VISA STAMP (A5 sheet) + original passport (your sister's) + printout of medical report page on the counter & extend the visit visa 3 month or 6 month at one time (Remind 200QR/month)

6.No need to keep on going to immigration at every month.

if you are not sponsor

1. all above points + go along with your sister.