The Galleri™ test is a simple blood draw. A lab technician or other clinical staff member will draw two tubes of blood from the patient. The Galleri™ test should be used in addition to guideline-recommended cancer screening, such as mammography, colonoscopy, prostate specific antigen (PSA) or cervical cancer screening. Galleri™ can benefit patients with an elevated risk of cancer due to age, such as those aged 50 or older.