T3: Setting Up the Theatre and Anaesthetic Machine Flashcards Preview

ASC183 Surgical Nursing > T3: Setting Up the Theatre and Anaesthetic Machine > Flashcards

Flashcards in T3: Setting Up the Theatre and Anaesthetic Machine Deck (24):

What is the aim when setting up the theatre?

  •  For the theatre to be prepared in such a way that it is fully functional when the patient is brought in.
  • It is therefore unnecessary for staff to undertake last- minute fetching and carrying once the procedure is underway.


When setting up the theatre in the morning, what is the first thing that should be done?

Theatre should be damp-dusted w/ clinics preffered disinfectant at correct dilution.

Start at top (lights) and work to bottom


Describe how you would check/set up the anaesthetic machine?

  • check the isoflurane level and refill if necessary
  • check that the oxygen supply is connected and functional
  • check the soda lime and change if necessary
  • perform leak test on the anaesthetic machine
  • connect the appropriate circuit for the first patient of the day


What things other than damp-dusting and checking anaesthetic machine should you do when setting up the theatre?

  • check monitoring equipment (leads, calibrated, power supply, pressure cuffs)
  • turn on heat pad
  • check lights
  • clean bin liner
  • any positioning aids ready
  • fluid pump is working


How should you clean the theatre between patients?

  • switch off equipment (unless N/A some machines left on to hear up)
  • all instruments and equipment used in previous procedure removed
  • detach light handle
  • wipe surfaces w/ lint free cloth
  • clean bed on surgery table
  • remove rubbish and replace liner
  • clean oesophageal stethoscope etc
  • check iso/soda lime
  • sweep/mop/tidy


What is antisepsis?

refers to the killing of micro-organisms within living tissue, for example treating a contaminated wound.


What does aseptic technique mean?

establishing conditions that prevent the contamination of surgical wounds.


What are the three main sources of infection?

  1. Environment
  2. Theatre personnel
  3. The animal


What are the 3 stages of cleaning?

  1. Removing gross contamination
  2. Disinfecting
  3. Sterilising


3 stages of cleaning:

how do we remove gross contamination?

  • using detergents (de-fatting agents) which remove grease and oils
  • using mechanical aids such as mops
  • pest control (e.g. mouse traps and cockroach baits)
  • regular removal of rubbish from the site (e.g. emptying bins)
  • This discourages the growth and multiplication of disease-carrying vermin and micro-organisms.
  • Removal of obvious dirt and organic materials is essential prior to treatment with many antiseptics and detergents, in order to increase their effectiveness.


3 stages of cleaning:

What does disinfection involve?

  •  removes and destroys most micro-organisms, except some viruses and heat resistant bacteria and bacterial spores
  • eg chlorhex, iodine, alcohol, chlorine
  • [ ]  and time of contact essential to effectiveness


What is an antiseptic and give some examples

  • mild disinfectants for use on live tissue
  • chlorhex, povidone-iodine, cetrimide


What equipment and requirements should a prep or induction area have?

  • seperate from but in close proximity to theatre
  • own anaesthetic machine, IV pump
  • other equip needed:
    -heat nat
    -ET tubes/ties
    -IV catheter
    -antiseptic skin prep and swabs
    -anaesthetic spray (cats)
    -adhesive tape
    -monitoring equip
    -vaccuum cleaner
    -rubbish bin


How long after being autoclaved is a surgery pack still sterilised?

up until 3 months past autoclave date


What are the functions of anaesthetic machines?

  • Supply oxygen
  • supply anaesthetic gases and vapours
  • remove carbon dioxide
  • inflate animals lungs


What is soda lime used for?

  • absorb CO2 breathed out
  • colour change occurs as it becomes exhausted, though this should not be relied upon to indicate freshness
  • should be changed when 50% becomes coloured


Describe a circle breathing system


Q image thumb

 components of a circle system include:

  • a fresh gas inlet
  • an inspiratory one-way valve
  • an expiratory one-way valve
  • a reservoir bag
  • corrugated tubing (both inspiratory and expiratory)
  • a Y-piece where the endotracheal tube is attached
  • escape valve where scavenger is attached
  • soda lime canister
  • vaporiser (VIC systems only)


Describe a T-piece breathing system

Q image thumb

  • used for animals that weigh less than 10kg
  • To check for leaks:

    close the hole in the end of the bag and the patient connection

    allow some gas into the system, and then squeeze the bag to locate any leaks


A bit about flow meters?

  • controls flow of gas to patient
  • small cyndrical bobbin is displaced upwards when gas is flowing
  • flow rate indicated from top of bobbin
  • rotation of bobbin indicates gas flow


Descrive a passive scavenger system

  •  rely on gas moving into a cylinder containing charcoal such as a scavcan that filters the gases, or by a tube going out of the room outside


Describe an active scavenger system?

  • connected to a suction pump that then filter out the gases.


Why do we intubate patients?

  • to protect and support the patients airway because anaesthesia removes the muscular supports.
  • minimise the gas pollution and provide safer anaesthesia by removing anatomical dead space.


Describe how to select the correct ET tube?

  • can check distance between nares
  • measure from nose to point of shoulder
  • make sure not too much over hang from mouth


How do you clean an ET tube?

washed in disinfectant/detergent, may use pipe cleaner and hang to dry

once dry, wipe over with alcohol