🧪 Bicarbonate Space / Deficit
UseWhen to use: severe metabolic acidosis planning when a cautious HCO₃ goal is chosen.
StrataSpace enlarges as HCO₃ falls; treat the cause and avoid overshoot.
LimitsWhen not to use: mixed disorders without ABG context. · Pitfall: amp-based overshoot. · Ongoing losses not modeled.
SourceAdrogué–Madias bicarbonate space teaching formula
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
Adrogué–Madias space.
When to use
When to use: severe metabolic acidosis planning when a cautious HCO₃ goal is chosen.
How it works
Space = (0.4 + 2.6/HCO₃)×wt; deficit = space×(goal−now).
Key points
- Adrogué–Madias space.
- Deficit = space×Δ.
- Next: cause-directed therapy.
References
- Adrogué–Madias bicarbonate space teaching formula
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.
| Current HCO₃ | 10 mEq/L |
|---|---|
| Goal HCO₃ | 15 mEq/L |
| Weight | 70 kg |
→Estimated HCO₃ deficit231mEq
- Apparent space：46.2 L
- 0.5×wt×Δ (compare)：175 mEq
Verification & sources · governance
FAQ
Frequently asked questions
- Does Bicarbonate Space / Deficit 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 Bicarbonate Space / Deficit calculated in practice? Can you show a worked example?
- Inputs: Current HCO₃ 10 mEq/L, Goal HCO₃ 15 mEq/L, Weight 70 kg → Result: Estimated HCO₃ deficit 231 mEq（Apparent space: 46.2 L, 0.5×wt×Δ (compare): 175 mEq）