Tuberculosis: Value of Lateral Chest Radiography in Pre-employment Screening of Patients with Positive Purified Protein Derivative Skin Test Results

PURPOSE: To test the hypothesis that lateral radiography adds no clinically relevant information to that acquired with posteroanterior (PA) radiography in individuals with positive purified protein derivative (PPD) skin test results. MATERIALS AND METHODS: As part of routine practice, all 875 adults with positive PPD skin test results at pre-employment examinations performed at a medical center du…