Internal medicine doctors can diagnose a wide range of medical conditions by executing various procedures, such as: • Physical exams - Internists conduct thorough physical exams to assess your general health and identify any underlying issues. • Blood tests - Internal medicine doctors order and analyze blood tests to evaluate your cholesterol levels, blood sugar, liver function, and other important health indicators. • Diagnostic imaging - By interpreting X-rays, ultrasounds, CT scans, and MRIs, internists can accurately diagnose conditions such as fractures, infections, and tumors. • Electrocardiograms (ECGs or EKGs) - These tests assess heart health by measuring electrical activity and identifying irregularities. • Stress tests - Stress tests are used to evaluate heart function and screen for coronary artery disease. • Pulmonary function tests - Lung capacity and function are measured through pulmonary function tests to diagnose various respiratory conditions. • Upper endoscopies - Internists are often trained to perform upper endoscopies to evaluate the esophagus, stomach, and upper digestive tract. • Skin biopsies - Skin biopsies are performed to diagnose skin conditions and evaluate suspicious moles. • Joint injections - Internal medicine doctors administer joint injections to manage conditions such as arthritis and chronic inflammation.