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CRISIS MANAGEMENT 

(comparison of the various components of the SCARE Algorithm)

- place the cursor on each "Note" for more information -

SCARE

  SCAN CHECK ALERT/READY EMERGENCY
C Circulation
    Note the rate, rhythm and volume of the pulse and note the end tidal carbon dioxide concentration (ETCO2).
  Note
Palpate a pulse. Correlate rate, rhythm and volume with the oximeter and ECG. Check capillary refill and ETCO2 trace.
Note
Circulation: If there is an impending arrest allocate the circulation" task and ask for the arrest trolley to be fetched If the pulse or ETCO2 fails, feel for a major pulse and start external cardiac massage
  Colour
    Note the colour of the patient's mucous membranes and blood and note the saturation reading of the oximeter (SaO2). If suspicious try the pulse oximeter on yourself. Take arterial blood for a lab check on saturation or blood gases. If the oximeter is suspect, resite or replace it and/or do an arterial blood gas. Consider inserting an arterial line.. If there is any question of cardiac, circulatory or respiratory compromise, give 100% O2 regardless of the saturation
O Oxygen Supply
    Note the rotameter settings and that the bobbins are spinning and calculate the inspired oxygen fraction (FIO2). 
Note
Briefly increase the oxygen flow rate and calculate the new expected FIO2 in the breathing circuit. If adequate saturation cannot be confirmed, administer 100% oxygen. Plan how to provide analgesia and anaesthesia Supply 100% oxygen at a very high flow rate if necessary
  Oxygen Analyser
     Note that the
readout matches that expected in the inspiratory limb of the breathing
circuit. Calibrate if necessary
Check that the changes in the FIO2 are in line with the calculated changes in FIO2 in the breathing circuit. Confirm that the gas in the inspired limb of the breathing circuit is 100% oxygen. Confirm the inspired gas in the breathing circuit is 100% oxygen.
 V  Ventilation
     Note the patient's chest movements. Correlate these with the capnograph, breathing circuit pressures and tidal volumes. Ventilate by hand and repeat SCAN. Check circuit, scavenging, valves and visible moving ventilator parts. Allocate the "airway and breathing" task. Ventilate with a self-inflating bag. See breathing below. Ventilate by hand - use a self-inflating bag. Obtain appropriate chest movement, airway pressures and ETCO2 (see breathing below).
  Vaporisers
     Note the vaporiser settings on all vaporisers and the volatile agent liquid level on the vaporiser in use Check the vaporiser(s) are correctly seated and set, "locked in" and connected and that there are no gas or liquid leaks. Turn the vaporiser off if there is cardio-respiratory compromise. Plan how to provide analgesia and anaesthesia Turn off all vaporisers unless the problem is clearly unrelated or is hypertension or awareness.
 E Endotracheal Tube
    or laryngeal mask airway: Note its position (distance marker at the lips), its orientation and its security
Note
or laryngeal mask airway: Check position, orientation and patency. If ET tube is in use exclude endobronchial intubation.
Note
or laryngeal mask airway:  Allocate the "equipment" task. If suspicious, prepare to remove and change the tube or LMA. or laryngeal mask airway: Remove and replace if there is any doubt whatsoever about its position or patency.
  Eliminate Circuit
     Note that, in a crisis, you may need to remove machine, circuit, filter, ETT and its connections, eg. the "catheter mount".  Check that an independent means of ventilating the patient (eg. self-inflating bag) and an alternate supply of oxygen are available Prepare & check the correct function of an alternate breathing system and separate oxygen source. The machine, circuit, filter and connections unless the problem is clearly unrelated.
 R Review Monitors
     Note monitors in use and review all readings, waveforms and alarm settings. Update the anaesthetic record.
Note
 Check all monitors in use and compare current monitor values with those on the anaesthetic record.
Note .
Recheck, correlate and record all readouts and trends. Call for additional monitors as necessary Frequently scan. Allocate someone to review trends and keep notes and ensure sensor integrity.
  Review Equipment
     Note all equipment in use, especially items in contact with the patient. Review its safety and function.
Note
 Check that all equipment in contact with or relevant to the patient is safe and functioning correctly Remove or replace suspect equipment. Bring in additional emergency equipment as appropriate Check, and remove all non-essential equipment in contact with patient (retractors, diathermy, etc.).
 A Airway
     Note the position of the head and neck, and the position, patency and security of any artificial airways or masks.
Note .
 Observe, palpate and auscultate the neck. If suspicious of airway obstruction, plan direct pharyngoscopy Adjust head and neck, attempt gentle chin lift. Prepare for pharyngoscopy; if suspicious, go to airway obstruction. Go to laryngospasm, airway obstruction, or aspiration algorithms as indicated. Consider intubation. See Bacon page 4.
 B Breathing
     Note chest and abdominal movements and correlate these with the respiratory rate and pattern of spontaneous ventilation.  Palpate and auscultate the chest whilst repeating SCAN. Review the ETCO2 if a capnograph is in use. Expose the chest and abdomen. Repeat SCAN and CHECK whilst comparing L & R sides. Consider causes Go to bronchospasm, pulmonary oedema, ARDS, ventilation, desaturation algorithms as indicated. Consider ventilation.
 C Circulation
     Note trends in all cardiovascular parameters and correlate these with estimated blood or other fluid losses.
Note
Cross check any abnormal BP readings where possible. Check the zero and scales of transducers Check IV access. Secure additional access (venous & arterial) as necessary. Prepare to transfuse Go to tachycardia, bradycardia, hypotension, hypertension, myocardial ischaemia, or cardiac arrest
D Drugs
Note drugs that have been given and correlate doses with effects. Note correct function of all IV lines and infusions.
Note
Check all ampoules, syringes, labels, infusion apparatus, connections & cannulae from fluid source to vein.
Note
Allocate the "drugs" task. Check all drugs & infusions & the entire IV apparatus. Draw up, check & label drugs that may be needed. Has there been an error? Ensure all drugs are labelled and keep a record of doses and times.
A
"Be Aware of Air and Allergy". Be Aware yourself, think of possible Awareness in the patient, and of Air (or other) embolism, Air in the pleura (pneumothorax), Allergy or Anaphylaxis.
Note
Specifically consider the possibility of Awareness. Note
Air (or other) embolism. Note
Air in pleura
(pneumothorax): Note
Allergy or Anaphylaxis: Note
See the relevant sub-algorithms for signs and high risk situations.
Decide whether Awareness, Air (or other) embolism, Air in pleura (pneumothorax), Allergy and Anaphylaxis are possible causes of the problem, and act accordingly (see algorithms). Go to awareness, air (and other) embolism, air in pleura (pneumothorax) and anaphylaxis algorithms as indicated.
SWIFT CHECK
Note what the surgeon and other personnel are doing, check the patient's position on the table and that the physiological responses match the circumstances. Correlate the monitored parameters with the clinical situation and risk factors. Specifically question the surgeon about what is being done, and check the pre-operative assessment, medical record and ward drug chart. Make another assessment of the general situation, of the patient, of the activities of the surgeon and other personnel, and of the possible effects of the operation and/or any drugs or infusions Go through as indicated when there is time.
           

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