Category: H

Excessively high blood concentration of phosphate. Hyperphosphatemia refers to an unusually high level of phosphates in the blood. This condition typically arises due to reduced phosphate excretion caused by impaired kidney function or kidney failure. Additionally, it may be linked to hypoparathyroidism (insufficient activity of the parathyroid gland) or hypocalcemia (low blood calcium levels). One…

A variety of conditions in which there are increased concentrations of lipids in plasma: phospholipids, triacylglycerols, free and esterified cholesterol, or unesterified fatty acids. The pathological increase of the amount of lipids, or fat, in the blood. An excess of fat in the blood, characterizing a group of metabolic disorders. The two most important fats…

Mental disorder of children, characterised by excessive activity and impaired attention and learning ability. Has been attributed to adverse reactions to food additives, but there is little evidence. A disorder of childhood or adolescence characterized by over-activity, restlessness, distractibility, short attention span, and difficulties in learning and perceptual motor function. Believed in some cases to…

Excessively high blood concentration of potassium. A condition in which too much potassium occurs in the blood, which can result in cardiac arrest. Various possible causes include kidney failure and chemotherapy. A concentration of potassium in the plasma that is above the normal range. It is often caused by renal failure or by excessive intake…

Excessive secretion of insulin, resulting in hypoglycaemia. Too much insulin in the blood which lowers the blood sugar level and produces insulin shock. The reaction of a diabetic to ag excessive dose of insulin or to hypoglycaemia. Excess of the hormone insulin; abnormal production usually is caused by a tumor (insulinoma) or exogenous administration; may…

Elevated plasma concentration of glucose, caused by a failure of the normal hormonal mechanisms of blood glucose control.  

Abnormally high blood concentrations of cholesterol. Generally considered to be a sign of high risk for atherosclerosis and ischaemic heart disease. Hypercholesterolemia is a condition characterized by elevated cholesterol levels in the blood. This condition is believed to be linked to high levels of low-density lipoprotein (LDL) in the bloodstream. It can be caused by…

Excess secretion of hydrochloric acid in the stomach due to secretion of a greater volume of gastric juice rather than to a higher concentration. Excess hydrochloric acid in stomach juice. An excess of hydrochloric acid in the stomach. Excessive secretion of hydrochloric acid into the stomach by the gastric cells. An insufficient secretions is termed…

Elevated plasma concentrations of calcium believed to be due to hypersensitivity of some children to vitamin D toxicity. There is excessive absorption of calcium, with loss of appetite, vomiting, constipation, flabby muscles, and deposition of calcium in the soft tissues and kidneys. It can be fatal in infants.