Non-Conformance Challenge

Mrs. and Mr. Jones visit the Cedar Grove Clinic together every year for an annual exam. A few weeks after their visit Nurse Brianna became alarmed while reviewing the test results from their visit. The test results for Mrs Jones included a PSA and a prostate biopsy. She immediately contacted the Quality department at the laboratory and communicated the incident. As a result, QA will perform a complete investigation to determine what happen. What steps should QA take to thoroughly investigate this issue? Sort the steps in order that will allow a complete investigation of this incident.