General Anaesthesia Learning Materials

General Anaesthesia (GA) Features of GA: (3) Revessible loss of Ausciousness (11) Sensation no anaesthetic agent com (ii) Snaelgesia & Amnesia. de all this (M muscle relaxation & Abilition ofreflexes. protocol to induce such an effect.. in Premedication (ⅱ) Inductiong anaesthesia Cep: Propuhul) (ii) marntanance danaesthesia CN20 + isoflurane) CIn Skeletal muscle relaxant (v) Snaelgesic - pefore, during and after surgery. (vi) other drugs. • reverse neulumuscular blockade • reverse the residual effects of opruids (Naloxane) f of BZDflumazenad Minimum aluedas Concentration (moe): uncentration ofan. produce ammobility in angesthetic on alueoli required to 50% patients on response to apainful stimuli. stages of GA (1) state of smallgesias patient is conscious but dronesy. (i) state of excitement. - DANGER" Patient loses Consciousnes Lympathetic Activity ↑ • 1 HR, TBP, pupils dilater vano Respiration becomes erregulal. muscle tone is nereased. General Anaesthesia (GA) Features of GA: (3) Revessible loss of Ausciousness (11) Sensation no anaesthetic agent com (ii) Snaelgesia & Amnesia. de all this (M muscle relaxation & Abilition ofreflexes. protocol to induce such an effect.. in Premedication (ⅱ) Inductiong anaesthesia Cep: Propuhul) (ii) marntanance danaesthesia CN20 + isoflurane) CIn Skeletal muscle relaxant (v) Snaelgesic - pefore, during and after surgery. (vi) other drugs. ১ • reverse neulumuscular blockade • reverse the residual effects of opruids (Naloxane) f of BZDflumazenad Minimum aluedas Concentration (moe): uncentration ofan. produce ammobility in angesthetic on alueoli required to 50% patients on response to apainful stimuli. stages of GA (1) state of smallgesias patient is conscious but dronesy. (i) state of excitement. - DANGER" Patient loses Consciousnes Lympathetic Activity ↑ • 1 HR, TBP, pupils dilater vano Respiration becomes erregulal. muscle tone is nereased. Complication of ors: hypotension, cardiac anythonia Cardiac arrest. RS: Resp. depression, aspiration pneumoniae, apnoea. CNS: Convulsions, persistent red ation GET: Nausea, vomiting, hepatotoxicity, Nephrotoxicity Malignant hyperthernia. Pre Anaesthetic medication use of drugs before Anasthesia L to make anaesthesia mure pleasant & Safe. Mim:1 ① To reduce Anaiety & apprehension: (B20) - diazepam, lorazepam, midaedam Calming, antiamwety, sedation Actor an the limber system ③ Prevent vagal Bradycardia and I salivary seer. by anaesthetics: suti musicasanic agents • Atropine Present Preventing dalyngospasm. • Glycspyrrolate Thypotension • Relieue Dre and pust operative pron Murphone & Sentanyl ): Respiratory depression, 4/6): hypotension, nausea, vomiting, Bronchospasm. 9) for Antenatio ofert, Prefelled contadition • metclopramide & Cantuk Kemiting damperidone man AR Seute dystonias Extrapyramidal symptonrs coPS) Prevent Actd secretion & shary weer: Proton pump erhobsters - omeprazde H2 blockers I said Seer & asporation preumonia ⑥hasten gastric emphyong before emergency surgery. Metoclopramide Remperdune. ↑ Fane of lumes veuphageal sphinchtes + accelerate gastric amplying Thiopentone Ludium • ultra shurt acting Balbituate higly lopid soluble rapid onset & short duration of Action (5-8 min) highly witant freshly prepared - 2056 Solution Thiopentene (1) →rapedly enter perfused organs & Brain, lover, heart}. Produce Anaesthesia less perfused organs like • Skeletal muscle Nilipose tisme graderally bloud level drops, diffuses out of ors to bloved