Don't Worry, you can visit the Medical Commission and try to see Head of the centre, he use to sit daily from 8 to 11 am, and ask for your problem.
They will test the blood again and u could give the result within 72 hours.
If you got result before expiry of your visa, you can get extension even on last date of visa without any fine otherwise QR 200 per day will be charged.
Don't Worry, you can visit the Medical Commission and try to see Head of the centre, he use to sit daily from 8 to 11 am, and ask for your problem.
They will test the blood again and u could give the result within 72 hours.
If you got result before expiry of your visa, you can get extension even on last date of visa without any fine otherwise QR 200 per day will be charged.