Don't gamble with medical record numbers. Each label lists the patient's name, the medical record number, the tests to be performed, the type of container required, any special instructions, and the bar code that identifies the specimen.
Mediastinoscopy is a surgical procedure to look at the inside of the upper chest between and in front of the lungs (mediastinum). During a mediastinoscopy, a small cut (incision) is made in the neck just above the breastbone or on the left side of the chest next to the breastbone. Then a thin scope (mediastinoscope) is inserted through the opening.
The mediastinum is the central compartment of the thoracic cavity, the area inside the ribcage. It is surrounded by areolar connective tissue and contains all thoracic organs except for the lungs, including the heart and its great blood vessels, the esophagus and trachea, the phrenic and cardiac nerves, the thoracic duct, the thymus, and lymph nodes.