critical situation. pls help

[patwal]

Hi I got my medical for permanent residency .I was in my home country when I got my medical for permanent residency. I took my medical test over there .now after one week I got a call from them to undergo one more additional test since I am in Canada I cannot go back for one test .now again I have booked an appointment with a doctor to go for another medical check up .it is OK if I go for another check up and complete my medical before it expires .please clear my doubt thanks.
Or should i wait for my first medical report and should not go for another medical test!!!