ARISCAT Score
Predicts postoperative pulmonary complications to guide perioperative respiratory optimization
- Highest activation tier
- Recommended
- How it is scored
- Scored in code; a stated value is compared only from the structured summary or a supplied value
- Care settings
- Inpatient
Calculate
Answer every item. The result uses the same scoring code Scribeable runs in notes. Nothing you enter leaves this page.
18 to 120 years.
50 to 100 %.
Respiratory infection in the last month
Preoperative anemia (Hb 10 g/dL or less)
Surgical incision
0 to 24 hours.
Emergency procedure
Enter the values above to see the result.
When it activates
Scribeable activates a calculator from the encounter. The ARISCAT Score can activate when the transcript or pasted chart context documents any of these:
- Pre-operative pulmonary risk assessment
- Postoperative pulmonary complication risk
- Pre-surgical respiratory optimization
- High-risk surgical patient evaluation
- Perioperative risk stratification
Note-type scope: it activates on notes whose subject resolves to perioperative, pulmonology, hospital medicine. A note that resolves to another subject does not carry it even when the clinician's specialty matches; a note with no resolvable subject (a generic consultation) falls back to the specialty match.
Inputs the note needs
7 inputs. Each is resolved from the transcript, the pasted chart context and charted labs; at this calculator’s tier a missing input is never requested, and a missing required input keeps the score out of the draft.
| Input | Type | Unit / options | Guidance |
|---|---|---|---|
| Patient age (years) | age | ||
| Preoperative SpO2 (%) | vital | % | |
| Respiratory infection in the past month | history | ||
| Preoperative anemia (Hb ≤10 g/dL) | lab | ||
| Incision location: peripheral, upper_abdominal, or intrathoracic | history | ||
| Expected surgical duration (hours) | history | h | |
| Emergency procedure | history |
Scoring
Age ≤50=0, 51-80=+3, >80=+16. SpO2 ≥96=0, 91-95=+8, ≤90=+24. Resp infection past month=+17. Anemia Hb ≤10=+11. Incision: peripheral=0, upper abdominal=+15, intrathoracic=+24. Duration ≤2h=0, 2-3h=+16, >3h=+23. Emergency=+8. Total 0-123.
Points from age Patient age (years) (51-80=+3, >80=+16) + SpO2 Preoperative SpO2 (%)% (91-95=+8, ≤90=+24) + resp infection Respiratory infection in the past month (+17) + anemia Preoperative anemia (Hb ≤10 g/dL) (+11) + incision Incision location: peripheral, upper_abdominal, or intrathoracic (upper abd=+15, thoracic=+24) + duration Expected surgical duration (hours)h (2-3h=+16, >3h=+23) + emergency Emergency procedure (+8)
Interpretation
<26: Low risk (1.6% PPC). 26-44: Intermediate (13.3%) — incentive spirometry, early mobilization. ≥45: High risk (42.1%) — aggressive pulmonary optimization, possible ICU post-op.
Evidence
Sources carried in Scribeable's citation registry for this calculator; guideline version: Canet J et al. 2010.
- Canet J et al. Prediction of postoperative pulmonary complications in a population-based surgical cohort (ARISCAT)Canet et al. (ARISCAT) 2010 · 2010 · Level I · link last verified 2026-03-28
How Scribeable handles it in the note
When an encounter activates the ARISCAT Score (its highest tier is recommended), Scribeable does not ask you for missing inputs. The score is computed in code from whatever inputs resolve from the transcript, the pasted chart context or charted labs; a computed value is written into the draft only when every required input already resolves.
The score is computed in code from the resolved inputs, not recalled by the language model. A stated ARISCAT Score value is compared against the computed one when the draft's structured summary carries it; a disagreement found there is flagged to the second drafting pass, which is instructed to correct the score and its interpretation, unless Scribeable has supplied the computed value to that pass, in which case the value the draft writes is checked against the supplied one and a detected difference is shown beside the note for you to adjudicate rather than silently rewritten.
Classified as a risk score: activated strictly, by a documented trigger, never by a permissive reading of the encounter.
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