Mcq Subject: Anaesthesia

At a flow rate of 3L/min, inspiratory (FUO2) concentration of 30–60% can be achieved by using a –

A. Nasopharyngeal catheter

B. Simple face mask

C. Venturi mask

D. Head box

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Intraoperative wheezing can be managed by

A. Thiopentane

B. Ketamine

C. Methohexitone

D. Propofol

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Standard method to differentiate between endotracheal and esophageal intubation is-

A. End tidal CO2

B. Chest X-rays

C. Auscultation

D. Paial pressure of 02

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Increased intracranial tension is seen with:

A. Ketamine

B. Thiopentone

C. Halothane

D. Propofol

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The most impoant constituent in soda lime for reabsorption of CO2 in a closed circuit

A. Sodium hydroxide

B. Barium hydroxide

C. Calcium hydroxide

D. Potassium hydroxide

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Volatile agent which causes most renal toxicity is

A. Ether

B. Isoflurane

C. Methoxyflurane

D. Sevoflurane

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Which of the following inhalational agent can cause coronary steal phenomenon-

A. Isoflurane

B. Sevoflurane

C. Desflurane

D. Halothane

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A 25 year old male with roadside accident underwent debridement and reduction of fractured both bones right forearm under axillary block. On the second postoperative day the patient complained of persistent numbness and paresthesia in the right forearm and the hand. The commonest cause of this neurological dysfunction could be all of the following except –

A. Crush injury to the hand and lacerated nerves

B. A tight cast or dressing

C. Systemic toxicity of local anaesthetics

D. Tourniquet pressure

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Gas cylinder with single pin index

A. Oxygen

B. Air

C. Titrogen

D. Entonox

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Most cardiotoxic local anaesthetic is-

A. Bupivacaine

B. Procaine

C. Prilocaine

D. Dibucaine

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