Anesthesia Machine and Monitoring Equipment

Question 1

What is a rebreathing circuit and what is it used for?

Answer 1

A rebreathing circuit is a circular system that allows gasses that have been exhaled by the patients to be re-used after the absorption of CO2 in the soda-lime canister. F or Y piece.

Normally used for patients > 10kg.

Question 2

What is a non-rebreathing circuit and what is it used for?

Answer 2

Non-rebreathing circuits have one way valves, exhaled gasses are not reused. These circuits have higher fresh gas requirements because the expred gas needs to be removed from the circuit by the fresh gasses, the fresh gas flushes out the expired gas. T piece.

usually used in patients < 10kg

Question 3

Why are patients using a non-rebreathing circuit more likley to become hypothermic?

Hypothermia- when the body looses heat faster then it can produce it.

Answer 3

Non-rebreathing circuits are constantly supplying the patient with fresh, cool oxygen that the body has to warm up, so the patient will loose heat through expired warm air and inspired cool air.

Question 4

Why are patients using a rebreathing circuit able to maintain body heat better?

Answer 4

The rebreathing circuit reuses the expired warm air from the patient, so the patient is not having to warm up new cold air every time the inhale. The inhaled air is already warm.

Question 5

Which circuit is being described?

In this circuit, expired gas is flushed out by fresh gas

Answer 5

Non-rebreathing

Question 6

Reservoir bag calculation

Answer 6

10x6 = y & 15x6 = z
(y+z) ÷ 2 = Answer in ml
Convert to Litres
Choose appropriate sise bag

Question 7

What is the Vaporiser?

Answer 7

The vaporiser is the containter that contains the anaesthetic gas that is delivered during anaesthesia. (isoflurane or sevoflurane)

Question 8

List the below:

Process of setting up the Anaesthetic machine

Answer 8

1. Remove the drape
2. Turn on oxygen bottle and perform a leak test on the regulator
3. Select the correct circuit for the patient and attatch to the machine
4. Ensure it is connected securely and correctly
5. perform leak tests on backbar and circuit
6. Check the vaporiser to ensure there is enough anaesthetic for the procedure
7. Perform final flush and check circuit to ensure it is all correct
8. Ensure pop off valve is Open.

Question 9

Go through the parts of the anaesthetic machine from A to B

Answer 9

1. Oxygen bottle
2. Regulator
3. O2 hose
4. Flow meter
5. Backbar
6. Vaporiser
7. Soda-lime