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.
This will often relax the sphincter or soften the stool enough so that the tube or tip can be inserted and the enema can be administered. Four types of enemas are commonly administered: cleansing, return-flow, medicated, and oil-retention. The type of enema prescribed depends on the indication. A cleansing enema can be either large- or small-volume. It acts by stimulating peristalsis by instilling a solution or irritating the mucosa of the colon.