text Medical tests sourcebook : provides basic consumer health information about preventive care guidelines, routine health screening, home-use tests, blood, stool, and urine tests, genetic testing, biopsies, endoscopic exams, and imaging test, such as x-ray, ultrasound, computed tomography (CT), and nuclear and magnetic resonance imaging (MRI) exams ; along with facts about diagnostic tests for allergies, cancer, diabetes, COVID-19, lung diseases, infertility, sleep problems, and other specific conditions, a glossary of related terms, and directory of additional resources