| Term | Definition |
|---|---|
| Heart murmur |
An abnormal sound heard on listening to the heart; produced by the blood passing through deformed cardiac valves. |
| Hemangiomatosis |
Presence of multiple hemangiomas. A hemangioma is an abnormal buildup of blood vessels in the skin or internal organs. |
| Hemiplegia |
Total paralysis of the arm, leg, and trunk on the same side of the body. |
| Hiccups |
A hiccup is an unintentional movement (spasm) of the diaphragm, the muscle at the base of the lungs. The spasm is followed by quick closing of the vocal cords, which produces a distinctive sound. |
| Humerus |
Bone of the upper arm between the elbow and the shoulder. |
| Hydronephrosis |
Swelling of one kidney due to a backup of urine that occurs with a disease. It is not a disease itself. |
| Hyper-reflexia (overactive reflexes) |
Overactive or over-responsive reflexes; twitching or spastic tendencies |
| Hyperlipidemia |
An increase in the amount of fat (such as cholesterol and triglycerides) in the blood. |
| Hypertension |
Blood pressure higher than 120/80 |
| Hyperthyroid |
Condition in which the thyroid gland produces too much of the hormone thyroxine. Symptoms include sudden weight loss, a rapid or irregular heartbeat, sweating, and nervousness or irritability. |
| Hypertrophic cardiomyopathy |
Associated with thickening of the heart muscle, most commonly the septum (wall) between the lower chambers of the heart (ventricles). This stiffening of the walls of the heart causes abnormal aortic and mitral heart valve function, both of which may imped |
| Hypo-reflexia |
Condition of below normal or absent reflexes. |
| Hypophosphatasia (HPP) |
Hypophosphatasia is an inherited metabolic (chemical) bone disease that results from low levels of an enzyme called alkaline phosphatase (ALP), causing defective calcification of bones in infants and children (rickets) and in adults (osteomalacia). |
| Hypoplastic Left Heart Syndromeÿ(HLHS) |
Hypoplastic left heart syndrome (HLHS) is a severe congenital heart defect in which the left side of the heart is underdeveloped. Often fatal without early intervention, it will typically require open heart surgery to re-direct the oxygen-rich ('red') blo |
| Hypothyroid |
Hypothyroidism is a condition in which the body lacks sufficient thyroid hormone. |
| Hypotonia |
Hypotonia means decreased muscle tone. It can be a condition on its own, called benign congenital hypotonia, or it can be indicative of another problem where there is progressive loss of muscle tone, such as muscular dystrophy or cerebral palsy. It is usu |
