How long is the DS-3025 / Medical Examination valid? Posted on August 24, 2014 by Mrs. Presson K1 Visa Stage: Normal – In general, medical examinations are valid for 6 months from the date of the Medical Exam. Meaning you’d have to have your K1 Visa Interview before this. Sputum Exams – These are usually valid for 3 months so you must have your K1 Visa Interview before it expires. AOS Stage: Your…