Measure of red blood cell volume in an individual’s blood.
Insurance Encyclopedia
Hematology
Branch of internal medicine concerned with the scientific study of blood and blood-forming tissues and with the treatment of diseases and disorders of the blood.
Hemilaminectomy
Surgical removal of one side (right or left) of the vertebral lamina. This is the posterior bony covering of the nerves.
Hemodiafiltration
Simultaneous hemodialysis and hemofiltration, which involves the removal of large volumes of fluid and fluid replacement to maintain hemodynamic stability. It requires the use of ultra pure dialysate or intravenous fluid for volume replacement. Also called high-flux hemodiafiltration and double high-flux hemodiafiltration .
hemodialysis (HD)
1. Method of dialysis in which blood from a patient’s body is circulated through an external device or machine and then returned to the patient’s bloodstream. Such an artificial kidney machine is usually designed to remove fluids and metabolic end products from the bloodstream by placing the blood in contact with a semipermeable membrane, which is bathed on one side by an appropriate chemical solution, referred to as dialysate . 2. Treatment usually done in a dialysis facility but can be done at home with the proper training and supplies. HD uses a special filter called a dialyzer or artificial kidney to clean the blood. The filter connects to a machine. During treatment, the blood flows through tubes into the filter to clean out wastes and extra fluids. Then the newly cleaned blood flows through another set of tubes and back into the body.
Hemofiltration
Fluid removal.
Hemp
Any Cannabis sativa plant with less than 0.3 percent of THC. Under parts of U.S. law refers to the sterilized seeds, stems, stalks and roots of the cannabis plant.