The most common cause of high potassium levels is kidney disease. Potassium is important to heart function. Your doctor may order this test if you have signs of high blood pressure or heart problems. Small changes in potassium levels can have a big effect on the activity of nerves and muscles, especially the heart. Low levels of potassium can lead to an irregular heartbeat or other electrical malfunction of the heart.
Look up viable or viability in Wiktionary, the free dictionary. Viability is the ability of a thing (a living organism, an artificial system, an idea, etc.) to maintain itself or recover its potentialities. Viability or viable may refer to: 1 Biology, medicine or ecology.
Definition of heritability 1: the quality or state of being heritable 2: the proportion of observed variation in a particular trait (such as height) that can be attributed to inherited genetic factors in contrast to environmental ones