#VisaCoach Video on When to Schedule K1 Fiancee Visa Medical Exam
To be granted a fiance visa your fiance is required to attend a medical exam at a clinic approved by the consulate processing your case. There they test and examine to confirm that she does not have any diseases that would put the public at risk or medical conditions requiring public funding to treat, has the required vaccinations, and does not have a history of drug use or mental instability. Most consulates recommend that she attend the interview two weeks prior to the interview. This gives ample time for tests to be processed, x-rays developed, and all results to arrive at the consulate, despite occasional traffic jams, power outages, bad weather.
Sometimes it is not convenient to take the medical two weeks early. Perhaps your fiance lives far from the city the clinic is in and needs to take an expensive trip to where the consulate and clinic are.