In meicine, hypertriglyceridemia (or "Hypertriglyceridaemia") denotes high (hyper-) blood levels (-emia) of triglycerides, the most abundant fatty molecule in most organisms. It has been associated with atherosclerosis, even in the absence of hypercholesterolemia (high cholesterol levels). It can also lead to pancreatitis in excessive concentrations. Very high triglyceride levels may also interfere with blood tests; hyponatremia may be reported spuriously (pseudohyponatremia).