Decreased tear production associated with general anesthesia in the dog.
Schirmer I tear tests were done on 20 dogs before and during general anesthesia. Atropine sulfate reduced tear production from a mean base-line value of 20.35 +/- 3.33 mm/minute to 14.10 +/- 6.13 mm/minute, 10 minutes after its subcutaneous administration. The combination of subcutaneous atropine, intravenous thiamylal sodium, and inhalation anesthesia reduced tear production to a mean value of 0.53 +/- 1.12 mm/minute at 60 minutes after induction.
D000768:Anesthesia, General / Q000662:veterinary*; D000818:Animals; D001285:Atropine / Q000494:pharmacology; D004285:Dogs / Q000502:physiology*; D005260:Female; D008297:Male; D011229:Preanesthetic Medication / Q000662:veterinary; D013666:Tears / Q000378:metabolism*; D013840:Thiamylal / Q000494:pharmacology
D013840:Thiamylal; D001285:Atropine