trust me, you will know when it's bad. There are few things in this world that smell as bad as a rotten potato. It may also be slimy. Those 'barnacle things' are fine. The potato is a root, those things are just shoots. Rub them off and you'll be fine.
Malignant hyperthermia (MH) is a rare, inherited skeletal muscle syndrome that presents as a hypermetabolic reaction triggered by exposure to volatile anesthetic gases or the depolarizing muscle relaxant, succinylcholine. 1,2 The incidence of MH is difficult to quantify.
Thus hypomagnesemia results in an increased intracellular calcium level. This inhibits the release of parathyroid hormone, which can result in hypoparathyroidism and hypocalcemia. Furthermore, it makes skeletal and muscle receptors less sensitive to parathyroid hormone.