Chapter 2 Multiple Choice Questions

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. Who discovered nitrous oxide?

Marie-Anne Lavoisier correct incorrect

Joseph Priestley correct incorrect

Humphry Davy correct incorrect

William Morton correct incorrect

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. Which chemical structures formed the basis of inhalational anaesthetic agents?

Halogenated alkanes correct incorrect

Phenols correct incorrect

Alkenes correct incorrect

Alcohols correct incorrect

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. What proportion of circulating glucose does the brain utilise?

2% correct incorrect

50% correct incorrect

30% correct incorrect

25% correct incorrect

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. Which of these is not part of the anaesthetic triad?

Analgesia correct incorrect

Hyperoxia correct incorrect

Hypnosis correct incorrect

Areflexia correct incorrect

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. Which nerve fibres would have the fastest conduction velocity?

Small diameter, unmyelinated correct incorrect

Large diameter, unmyelinated correct incorrect

Large diameter, myelinated correct incorrect

Small diameter, myelinated correct incorrect

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. Which of the following is true of G-protein-coupled receptors?

They are solely intracellular receptors. correct incorrect

They possess five transmembrane domains. correct incorrect

They commonly function by affecting the regulation of adenyl cyclase. correct incorrect

They work rapidly due to their effect of movement of ions. correct incorrect

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. What percentage of the carbon footprint of the National Health Service (NHS) in the UK is thought to be from volatile anaesthetic agents?

5% correct incorrect

3% correct incorrect

10% correct incorrect

1% correct incorrect

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. Which neurotransmitter within the brain is most responsible for the effects of hypnosis and sedation?

Serotonin correct incorrect

Dopamine correct incorrect

GABA correct incorrect

Histamine correct incorrect

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. Which of the following points about anaesthesia is correct?

Anaesthetic drugs are commonly given through arterial cannulas. correct incorrect

Anaesthetists do not have to consent or talk to patients about the anaesthetic. correct incorrect

An endotracheal tube sits above the vocal cords to help ventilate the patient. correct incorrect

Propofol can be used to induce anaesthesia. correct incorrect

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. If a drug diffuses through a cell membrane, which of the following does not affect the speed of diffusion?

The concentration gradient of the drug correct incorrect

Whether the drug is ionised or unionised correct incorrect

The fat solubility of the drug correct incorrect

The time of day the drug is taken correct incorrect