Once asleep again, the muscles relax and the airway becomes blocked, cutting off the airway again. This cycle can occur hundreds of times per night. Obstructive Sleep Apnea is the most common form of sleep apnea. It ranges in severity from mild to moderate, to severe. Other forms of sleep apnea include Central and Mixed Sleep Apnea.
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Disodium phosphate. Disodium phosphate (DSP), or sodium hydrogen phosphate, is the inorganic compound with the formula Na 2 HPO 4. It is one of several sodium phosphates. The salt is known in anhydrous form as well as forms with 2, 7, 8, and 12 hydrates.All are water-soluble white powders; the anhydrous salt being hygroscopic.isodium phosphate (DSP), or sodium hydrogen phosphate, is the inorganic compound with the formula Na 2 HPO 4.