Physics and equipment

Question 1

How does a flowmeter work?

Answer 1

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Question 2

What are potential sources of inaccuracy with a flowmeter?

Answer 2

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Question 3

How does laminar flow differ from turbulent flow? Give an example of how this is important in anaesthetic practice.

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Question 4

How is CO2 measured?

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Question 5

What information does a capnograph give you?

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Question 6

How does a pulse oximeter work?

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Question 7

What is awareness under anaesthesia?

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Question 8

How do we monitor depth of anaesthesia?

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Question 9

What are potential problems with pulse oximetry?

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Question 10

Outline the methods with which we can measure cardiac output.

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Question 11

What are the indications for renal replacement therapy?

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Question 12

How does haemofiltration work?

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Question 13

What is laser? How does it work?

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Question 14

What is MRI? How does it work?

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Question 15

What are the safety issues of using laser in theatre?

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Question 16

What are the problems with taking an anaesthetised patient to the MRI scanner?

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Question 17

Outline the mechanisms by which patients lose heat during anaesthesia.

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Question 18

What is humidity? Why is it important?

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Question 19

How does ultrasound work?

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Question 20

What are the clinical uses of ultrasound in intensive care and anaesthesia?

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Question 21

What is the difference between a gas and a vapour?

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Question 22

What filters are commonly encountered in anaesthetic practice?

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Question 23

What is thromboelastography?

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Question 24

How does surgical diathermy work? What are the risks of using diathermy in theatre?

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Question 25

How do we measure humidity? What is the difference between absolute and relative humidity?

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Question 26

How can you classify breathing circuits? Tell me about the Mapleson E.

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Question 27

Why might heliox be useful in upper airway obstruction?

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Question 28

How do we measure non-invasive blood pressure? What are the possible sources of inaccuracies?

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Question 29

How is a tourniquet applied?

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Question 30

How do you diagnose a VAE?

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Question 31

What are the uses of hyperbaric oxygen?

Answer 31

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