Category: H

A test using sheep red blood cells to diagnose infectious mononucleosis.  

A laboratory record, either written or graphic, of the differential blood count, with special emphasis on the size, shape, special characteristics, and numbers of the solid constituents of the blood. The results of a routine blood test, including an estimate of the blood hemoglobin level, the packed cell volume, and the numbers of red and…

Fetal hemoglobin; in adults or children, abnormally elevated levels may indicate various blood diseases and conditions, including aplastic anemia, leukemia, and thalassemia, a type of hemolytic anemia.  

A test done on blood to determine whether abnormal hemoglobin constituents are causing a lack of oxygen in body cells. May be needed for individuals who are subject to carbon monoxide exposure. If abnormal hemoglobin constituents are detected, immediate treatment must be given.  

Defective vision or blindness in one half of the visual field in one or both eyes.  

Originating or carried in the blood. Relating to the production of blood or its constituents; hematopoietic.  

A test done on urine to determine the presence or absence of pregnancy.  

A scan of the heart done after injection of a radioactive substance into a vein, to determine size, shape, and location; to diagnose pericarditis (inflammation and fluid accumulation around the heart); or to view the heart’s chambers. A blood pool scan can measure damage sustained after a heart attack.  

Injury to the skull and brain. Injury to the head, especially to the scalp and cranium, that may be limited to soft tissue damage or may include the cranial bones and the brain.  

A reliable, simple urine test to diagnose early pregnancy, ectopic pregnancy, and missed abortion. Human chorionic gonadotropin (HCG) is found only in pregnancy or in HCG-producing tumors.