High Pressure Neurological SyndromeA syndrome related to increased atmospheric pressure and characterized by tremors, nausea, dizziness, decreased motor and mental performance, and SEIZURES. This condition may occur in those who dive deeply (c. 1000 ft) usually while breathing a mixture of oxygen and helium. The condition is associated with a neuroexcitatory effect of helium.
SyndromeA symptom complex of unknown etiology, that is characteristic of a particular abnormality.
PressureNo Entry for Pressure
OxygenAn element with atomic symbol O, atomic number 8, and atomic weight 16. It is the most abundant element on earth and essential for respiration.
Molecular oxygen, O2, having two unpaired electrons in its most stable form.
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