After this period, the patient is in a new steady state in which further sodium and water losses do not occur. However, in many patients with diuretic-induced hyponatremia, the disorder first appears after many months of uncomplicated thiazide therapy [5,12].
Out of more than 480 shark species, only three are responsible for a double-digit number of fatal, unprovoked attacks on humans: the great white, tiger, and bull; however, the oceanic whitetip has probably killed many more castaways, not recorded in the statistics.
Most shark attacks are a case of mistaken identity with the animal confusing surfers and swimmers for seals and other marine animals. Merely nudging a human being is the most common interaction, and if sharks do bite, they typically let go in search of a more typical prey.