title: Effects of sevoflurane anesthesia on righting reflex and hemolymph gas analysis variables for Chilean rose tarantulas (Grammostola rosea).
abstract: OBJECTIVE
  To determine the safety, efficacy, and effects on hemolymph gas analysis variables of sevoflurane anesthesia in Chilean rose tarantulas (Grammostola rosea).
  
  
  METHODS
  12 subadult Chilean rose tarantulas of unknown sex.
  
  
  METHODS
  Spiders were anesthetized in a custom chamber with sevoflurane (5% in oxygen [1.0 L/min]), then allowed to recover in 100% oxygen. Righting reflex was evaluated every 3 minutes during anesthesia to determine time to anesthetic induction and recovery. Hemolymph samples were collected from an intracardiac location prior to and after induction of anesthesia and evaluated to determine various gas analysis variables.
  
  
  RESULTS
  Mean ± SD induction and recovery times were 16 ± 5.91 minutes and 29 ± 21.34 minutes, respectively. Significant differences were detected for Po2, base excess, and glucose and ionized magnesium concentrations between hemolymph samples obtained before anesthesia and those obtained after induction of anesthesia. CONCLUSIONS AND CLINICAL RELEVANCE-Results of this study suggested that the use of sevoflurane as an anesthetic agent for Chilean rose tarantulas was safe and effective. Various hemolymph sample gas analysis values changed during anesthesia.
authors.affiliation: Chicago Zoological and Aquatic Animal Residency Program, College of Veterinary Medicine, University of Illinois, Urbana, IL 61802.
authors.forename: Trevor T
authors.initials: TT
authors.lastname: Zachariah
authors.forename: Mark A
authors.initials: MA
authors.lastname: Mitchell
authors.forename: Megan K
authors.initials: MK
authors.lastname: Watson
authors.forename: Stuart C
authors.initials: SC
authors.lastname: Clark-Price
authors.forename: Maureen A
authors.initials: MA
authors.lastname: McMichael
mesh_terms: D000704:Analysis of Variance; D000762:Anesthesia Recovery Period; D018685:Anesthetics, Inhalation / Q000494:pharmacology*; D000818:Animals; D001784:Blood Gas Analysis; D001786:Blood Glucose; D006458:Hemolymph / Q000737:chemistry / Q000187:drug effects*; D008274:Magnesium / Q000097:blood; D008297:Male; D008738:Methyl Ethers / Q000494:pharmacology*; D057897:Reflex, Righting / Q000187:drug effects* / Q000502:physiology; D000077149:Sevoflurane; D013112:Spiders / Q000187:drug effects* / Q000502:physiology
chemical_list: D018685:Anesthetics, Inhalation; D001786:Blood Glucose; D008738:Methyl Ethers; D000077149:Sevoflurane; D008274:Magnesium