Exam Preparation

Remove any metal you’re wearing prior to the scan. Metals can interfere with the imaging, so you may be asked to remove any metal such as jewelry, glasses, hearing aids and dentures. Additionally, wear clothing that doesn’t have snaps or metal buttons. Do not wear an underwire bra. You may be asked to change into a gown if your clothing is determined to have too much metal.

If you currently have signs and symptoms of a respiratory tract infection or if you recently had one, inform your doctor. Your doctor may recommend delaying your screening for a month until your symptoms go away. Respiratory infections can result in CT scan abnormalities that may require additional scans or tests. By waiting for the infection to heal, these extra scans can be avoided.

Also, check with your health insurance company to see if LDCTs are covered. Health insurance companies typically cover screenings that meet the U.S. Preventive Services Task Force, which recommend yearly screenings for individuals who have a 30-pack year history, beginning at age 55.