Anesthesia, InhalationNitrous OxideIsofluraneAnesthesia, IntravenousAnesthetics, InhalationAnesthesia, Closed-CircuitPropofolSurgical Procedures, MinorAnesthesia, GeneralAnesthesiaAnesthetics, IntravenousHalothaneAnesthesia Recovery PeriodMethyl EthersAnesthesia, LocalAnesthetics, CombinedAdministration, InhalationAnesthesia, EpiduralAnesthesia, SpinalAnesthesia, ConductionEnfluraneAnestheticsInhalation ExposureFentanylMonitoring, IntraoperativeMethohexitalAnesthesia, ObstetricalAnesthesia, DentalKetamineAdjuvants, AnesthesiaSmoke Inhalation InjuryBurns, InhalationAlfentanilNeuromuscular Nondepolarizing AgentsThiopentalXenonElectroencephalographyAmbulatory Surgical ProceduresPiperidinesAnesthetics, DissociativeInhalationHypnotics and SedativesEthersAlfaxalone Alfadolone MixtureAnesthesiologyMedetomidineAnesthetics, LocalHemodynamicsPostoperative Nausea and VomitingAnesthetics, GeneralPentobarbitalEtomidateHeart RateAndrostanolsNeuromuscular BlockadeBlood PressurePropanididDose-Response Relationship, DrugPreanesthetic MedicationConsciousnessDogsGuaifenesinXylazineLidocaineAtracuriumConscious SedationCarbon DioxideBlood Gas AnalysisPain, PostoperativeChillsIntubation, IntratrachealShiveringOxygenTime FactorsRats, Sprague-DawleyAerosolsChloraloseSuccinylcholineDouble-Blind MethodCerebrovascular CirculationProspective StudiesBupivacainePartial PressureNerve BlockSurgical EquipmentSurgical Procedures, OperativeMidazolamHypotension, ControlledAnesthesia, IntratrachealAnalgesics, OpioidIntraoperative PeriodAnesthesia, CaudalDrug InteractionsEtherNitric Oxide SynthaseBrainBody Temperature RegulationBody TemperatureInfusions, IntravenousRespiration