Its widgets, support for 3G and 4G devices, and per-app display makes it the most useful app in the category. Whether you have an unlimited data plan or you're interested in carefully monitoring the mobile data you use, Android users have plenty of options when it comes to tools that keep track of their mobile data usage.
Symptoms of hypocalcemia include paresthesia, muscle spasms, cramps, tetany, circumoral numbness, and seizures. Hypocalcemia can also present with laryngospasm, neuromuscular irritability, cognitive impairment, prolonged QT intervals, electrocardiographic signs of myocardial infarction, or heart failure.
The QT interval lasts just a fraction of a second; it normally lasts about one-third of an entire heartbeat. In people with long QT syndrome, the interval lasts longer than it should because heart muscle cells are having trouble getting ready for the next contraction. A prolonged QT interval does not cause symptoms. However, the delay in recharging upsets the electrical timing of the heart. This makes the heart more likely to develop abnormal heart rhythms, called arrhythmias.