- 0Jul 26, '12 by staugnurseI am trying to enlist in the Navy. MEPS required me to have a mammography and pap due to being almost 40. The Mammo I had at my physician was normal Since they had my previous records. However, MEPS radiologist recommended a ultrasound although probable benign. MEPS is reviewing both results. How long does this take? It's been almost 2 weeks.