Ideal Body Weight (Devine)
Calculates ideal body weight for lung-protective ventilation tidal volume and medication dosing
- 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
- Scoring type
- formula
- Care settings
- ICU, Inpatient
When it activates
Scribeable activates a calculator from the encounter. The Ideal Body Weight (Devine) can activate when the transcript or pasted chart context documents any of these:
- Mechanical ventilation tidal volume calculation
- Lung-protective ventilation settings
- Medication dosing by ideal body weight
- ARDS management
A coded diagnosis can also activate it. ICD-10 prefixes carried by the registry: J80, J96, Z99.1.
Inputs the note needs
2 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 |
|---|---|---|---|
| Biological sex | history | ||
| Height in inches | vital | in |
Scoring
Men: 50 + 2.3 × (height_inches − 60) kg. Women: 45.5 + 2.3 × (height_inches − 60) kg.
IBW = (50 if male else 45.5) + 2.3 × (Height in inches − 60); sex=Biological sex
Interpretation
Use IBW for all ventilator tidal volume calculations (6–8 mL/kg IBW for lung-protective ventilation). Also used for aminoglycoside dosing, some chemotherapy dosing, and neuromuscular blocker dosing.
Evidence
Sources carried in Scribeable's citation registry for this calculator; guideline version: Devine 1974.
- Devine BJ. Gentamicin therapy (Devine formula for ideal body weight)Devine (IBW) 1974 · 1974 · link last verified 2026-03-28
How Scribeable handles it in the note
When an encounter activates the Ideal Body Weight (Devine) (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 Ideal Body Weight (Devine) 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 deterministic formula: a spare suggestion is easy to ignore, so activation is permissive.
See it activate on your own encounter
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