It's the abbreviation for Mean Corpuscular Hemoglobin. This is a measure for how much hemoglobin per red blood cell count. MCH stands for Mean Corpuscular Hemoglobin. It is a measure of the average amount of hemoglobin in each red blood cell. 9 people found this useful.
Human Interface Device (HID) Definition - What does Human Interface Device (HID) mean? A human interface device (HID) is a method by which a human interacts with an electronic information system either by inputting data or providing output. A myriad of HID devices exist. The most common are the keyboards, mice, computer speakers, webcams and headsets.
A HIDA, or biliary, scan is a test that uses a radioactive substance (or tracer) to examine the liver, gallbladder and bile ducts in detail. The radiation you are exposed to with the injected radioactive substance is about the same as a regular x-ray. A HIDA scan is performed to detect abnormalities in the biliary system, such as inflammation of the gallbladder, abnormal gallbladder contractility, bile duct obstruction or liver disease. HIDA scans depict functional information that is not visible on routine x-ray or ultrasound examinations.