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⚖️ Lean Body Weight (Janmahasatian)

UseWhen to use: PK dosing scalars in obesity when LBW is specified.

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StrataLBW kg for dosing math — verify drug-specific weight metric.

LimitsWhen not to use: if the label mandates IBW/AdjBW instead. · Pitfall: confusing LBW with ideal body weight. · Not a fitness body-comp device.

SourceJanmahasatian S et al. Clin Pharmacokinet

Runs locally in your browser (no PHI uploaded). For licensed clinicians — not a substitute for clinical judgement.
Stored on this device for revisit reminders

This-shift next steps

After scoring: open the scene pack, peer scores, and the matching pathway. Local reference — no HIS write.

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Methodology · worked example, guidelines & full notes
Clinical takeaway

Sex-specific LBW.

When to use

When to use: PK dosing scalars in obesity when LBW is specified.

How it works

Male (9270·WT)/(6680+216·BMI); female (9270·WT)/(8780+244·BMI).

Key points

  • Sex-specific LBW.
  • BMI in denominator.
  • Next: drug monograph.

References

  • Janmahasatian S et al. Clin Pharmacokinet

Worked calculation

The values below come from this tool's own example placeholders and are computed server-side with the formula shown on this page, so the arithmetic can be checked quickly. It demonstrates how to substitute values only — it is not clinical advice and not a real case.

SexMale
Total body weight90 kg
Height170 cm

→LBW62.2kg

  • BMI：31.1 kg/m²
  • TBW：90.0 kg
SexFemale
Total body weight90 kg
Height170 cm

→LBW50.9kg

  • BMI：31.1 kg/m²
  • TBW：90.0 kg
Verification & sources · governance
FAQ

Frequently asked questions

Does Lean Body Weight (Janmahasatian) upload patient data? Where is it calculated?
Calculation runs locally in the browser; inputs and results are not uploaded. For licensed clinicians only; interpret with history, investigations and local protocols — not a diagnosis or prescription.
How is Lean Body Weight (Janmahasatian) calculated in practice? Can you show a worked example?
Inputs: Sex Male, Total body weight 90 kg, Height 170 cm → Result: LBW 62.2 kg（BMI: 31.1 kg/m², TBW: 90.0 kg） Inputs: Sex Female, Total body weight 90 kg, Height 170 cm → Result: LBW 50.9 kg（BMI: 31.1 kg/m², TBW: 90.0 kg）
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