Diagnosis is by urinalysis or urine culture. A urine sample should also be collected for urinalysis. A urinalysis can show elevated levels of heparan sulfate in the urine. Special UCDs exist for the collection of urine samples for subsequent urinalysis. These can be seen in the urine (urinalysis) on microscopic and chemical (dipstick) examination. Its subsections include chemistry, hematology, microbiology, immunology, urinalysis and blood bank. Etodolac metabolites may also cause a false positive bilirubin result on a urinalysis test. Special tests, such as urinalysis, can be performed if an uncommon microorganism is suspected. Given the need to exclude infection, chest radiography and urinalysis are usually performed. The urinalysis may show uric acid crystals or amorphous urates. Paracelsus invented chemical therapy, chemical urinalysis, and suggested a biochemical theory of digestion. A tuberculosis infection can be confirmed using a radiograph of the knee and urinalysis. Trainees will undergo a urinalysis test the day after arrival. Health care policy required all women workers to receive urinalysis and vaginal examinations yearly. The enzyme-multiplied immune test is the most frequently used urinalysis.