- 循環：If there is an impending arrest allocate the “circulation” task (1) and ask for the cardiac arrest trolley to be fetched)。1)
- 顏色：If the oximeter is suspect, resite or replace it and/or do an arterial blood gas. Consider inserting an arterial line.
- 呼吸器：Allocate the “airway and breathing” task (1). Ventilate the lungs with a
self-inflating bag. See breathing below. Exclude obstruction. (3)
- 氣管插管或喉罩氣道：Allocate the “equipment” task (1). If
suspicious, prepare to remove and change the tube or LMA.
- 排除：Prepare & check the correct function of an alternate breathing system and
separate oxygen source.
- 回顧監測器：Recheck, correlate and record all readouts and trends. Call for
additional monitors as necessary. Don’t forget body temperature in infants
- 審視儀器設備：Remove or replace suspect equipment. Bring in additional
emergency equipment as appropriate
- 氣道：Adjust head and neck, attempt gentle chin lift. Prepare for pharyngoscopy; if
suspicious, go to the airway obstruction sub-algorithm
- 呼吸：Expose the chest and abdomen. Repeat SCAN and CHECK whilst comparing
L & R sides. Consider causes
- 循環：Check IV access. Secure additional access (venous & arterial) as necessary.
Prepare to transfuse.
- 藥物：Allocate the “drugs” task (1). Check all drugs & infusions & the entire IV
apparatus. Draw up, check & label drugs that may be needed.
- Decide whether Awareness, Air (or other) embolism, Air in pleura (pneumothorax),
Allergy and Anaphylaxis are possible causes of the problem, and act accordingly (see sub-algorithms).
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.