The mean corpuscular hemoglobin concentration, a measure of the concentration of hemoglobin in a given volume of packed red blood cells. It is reported as part of a standard complete blood count.he mean corpuscular hemoglobin concentration, a measure of the concentration of hemoglobin in a given volume of packed red blood cells. It is reported as part of a standard complete blood count.
An enema is the administration of a substance in liquid form into the rectum. This may be performed to aid bowel evacuation or to administer medicines.
Phosphate enemas are used in people to relieve occasional constipation and for bowel cleansing prior to a colonoscopy.1 Because phosphate enemas are hypertonic, they cause water to move into the colon and increase the water content of the stool, resulting in evacuation of the bowel within five to 10 minutes.