at sea or in a desert), seawater or drinks with significant alcohol concentration will worsen dehydration. Urine contains a lower solute concentration than seawater; this requires the kidneys to create more urine to remove the excess salt, causing more water to be lost than was consumed from seawater. If a person is dehydrated and taken to a medical facility, IVs can also be used.For severe cases of dehydration where fainting, unconsciousness, or other severely inhibiting symptoms are present (the patient is incapable of standing or thinking clearly), emergency attention is required. Fluids containing a proper balance of replacement electrolytes are given orally or intravenously with continuing assessment of electrolyte status; complete resolution is normal in all but the most extreme cases. See also
Hydrational fluids
Terminal dehydration
Dryness (medical)
Hypernatremia

References
Further reading
External links

Definition of dehydration by the U.S. National Institutes of Healths MedlinePlus medical encyclopedia
Infections may also be introduced by facial lacerations and by bursting pimples in the areas drained by the facial vein.Potential causes of cavernous sinus syndrome include metastatic tumors, direct extension of nasopharyngeal tumours, meningioma, pituitary tumors or pituitary apoplexy, aneurysms of the intracavernous carotid artery, carotid-cavernous fistula, bacterial infection causing cavernous sinus thrombosis, aseptic cavernous sinus thrombosis, idiopathic granulomatous disease (Tolosa–Hunt syndrome), and fungal infections. Cavernous sinus syndrome is a medical emergency, requiring prompt medical attention, diagnosis, and treatment. Additional images
See also
Cavernous sinus thrombosis
Dural venous sinuses

References
External links

MedEd at Loyola grossanatomy/h_n/cn/dvs/dvs3.htm
Anatomy figure: 28:03-06 at Human Anatomy Online, SUNY Downstate Medical Center –  "Venous dural sinuses." Cavernous+Sinus at the US National Library of Medicine Medical Subject Headings (MeSH)
lesson2 at The Anatomy Lesson by Wesley Norman (Georgetown University)
Atlas image: n3a8p1 at the University of Michigan Health System