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An 11-month-old 25.2-kg castrated male American Pit Bull Terrier was referred to the ophthalmology service of the University of California-Davis Veterinary Medical Teaching Hospital (VMTH) for a prolapsed gland of the nictitating membrane (“cherry eye”) in the right eye. The gland had been prolapsed for at least 7 months at the time of presentation and had been evaluated by the referring veterinarian (rDVM). Surgical correction had been attempted; however, during the anesthetic event, the rDVM noticed hypoxemia that was corroborated by results for oxygen saturation of hemoglobin measured with pulse oximetry (Spo2) < 90% and that did
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