It says:Hey there.
What you mean by "review yout medical"?
does it show that you have passed the medical exam on Gckey? if so, they have already reviewed and report it as passed. they will move on after this to eligibility and background check which is usually a long time job.
but if it is not showing "passed" then i guess you should call them ASAP.
4. Medical results have been received.
and thats all.