Anaesthesia 3

Question 1

How many stages of anaesthesia

Answer 1

4

Question 2

stage 1 of anaesthesia

Answer 2

Voluntary Excitement
Induction to unconsciousness
* Fear, stress and apprehension
* Increase in respiratory and heart rate

Question 3

Stage 2 of anaesthesia

Answer 3

Involuntary Excitement
* Unconsciousness to unexcited and stable respiration
* Howling
* All reflexes still present
* Eyes open and central
* Pupils dilated

Question 4

Stage 3 Plane 1(light) of anaesthesia

Answer 4

-HR slightly reduced and regular
-Pulse rate slightly reduced, strong and regular
-Some jaw tone

Question 5

Stage 3 Plane II (medium)

Answer 5

-HR is regular/slightly reduced
-Pulse rate strong and regular
- relaxed
- Palpebral reflex slow/absent
- Pedal reflex slow/absent
- Corneal reflex is present
-eye slightly ventrally
- pupil constricted

Question 6

Stage 3 (plane 3) Deep

Answer 6

-HR/BP reduced further.
BP weak
Decrease in tidal volume
-Only corneal reflex still present
-Eye centrally fixed
No Muscle tone

Question 7

Stage IV

Answer 7

Overdose

Question 8

Gas Cylinders Oxygen colour

Answer 8

• Black cylinder body and white
  top
• White pipelines

Question 9

Gas cylinders N20 colour

Answer 9

• Blue cylinder and pipelines

Question 10

• Carbon dioxide cylinder colour

Answer 10

grey

Question 11

Gas Cylinders size range

Answer 11

• AA – smallest
• J – largest

Question 12

Pin Index system

Answer 12

Prevents the wrong cylinders
being attached
Pin holes on cylinder and yoke

Question 13

Bodock Seals

Answer 13

placed between the machine and the pin index
system to create an air tight seal

Question 14

Schrader Probe

Answer 14

Used to connect to pipeline outlet

Question 15

Pressure gauge

Answer 15

Amount of gas left in cylinder or
pipeline

Question 16

Full oxygen cylinder measurement

Answer 16

137 BAR

Question 17

Half full oxygen cylinder measurement

Answer 17

68 bar

Question 18

Calculating N2O levels calculation

Answer 18

N2O L= (Weight full kg- weight empty kg) x 534 L/kg

Question 19

Pressure-Reducing Valve (regulators)

Answer 19

Maintains constant pressure, Preventing surges in pressure
reaching the patient

Question 20

Flowmeters which side is oxygen on

Answer 20

the left flowmeter is
oxygen

Question 21

Common gas outlet

Answer 21

• Gases leave anaesthetic machine
• Entering the breathing system

Question 22

Over pressure valve

Answer 22

Opens if pressure at common gas outlet is too high

Question 23

Boyle’s Bottle

Answer 23

vapouriser

Question 24

How does a boyles bottle work

Answer 24

Gas drawn over vaporiser by
patient’s respiratory effort

Question 25

Calibrated Vaporisers types

Answer 25

TEC”/”Penlon”

Question 26

Low Oxygen Warning Devices

Answer 26

Ritchie whistle
Howison oxygen failure alarm
Bosun whistle

Question 27

Active Scavenging

Answer 27

Barnsley receiver
Uses extractor fans to create
negative pressure

Question 28

Passive Scavenging

Answer 28

Gases moved by patient’s
respiratory effort into
* Activated charcoal system
* Gravity fed

Question 29

Active-Passive Scavenging

Answer 29

connected to a
forced ventilation system

Question 30

Activated charcoal system cannot be used for

Answer 30

N20

Question 31

max weight for activated charcoal system