🧂 Magnesium Deficit Estimate
UseWhen to use: symptomatic hypomagnesemia replacement planning adjunct.
StrataOutputs a teaching deficit — serum Mg underestimates stores.
LimitsWhen not to use: advanced CKD without dose caution. · Pitfall: rapid IV boluses. · Recheck K/Ca.
SourceTeaching magnesium deficit estimate
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
ΔMg×factor×wt.
When to use
When to use: symptomatic hypomagnesemia replacement planning adjunct.
How it works
Deficit ≈ (Mg_goal − Mg_now) × factor × weight.
Key points
- ΔMg×factor×wt.
- Rough estimate.
- Next: monitored replacement.
References
- Teaching magnesium deficit estimate
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.
| Mg units | mg/dL |
|---|---|
| Current Mg | 1.4 mg/dL or mmol/L |
| Goal Mg | 2.0 mg/dL or mmol/L |
| Weight | 70 kg |
| Distribution factor | 0.2 L/kg |
→Estimated Mg deficit84mg
- ΔMg：0.60 mg/dL
- ≈ mmol：3.5 mmol
| Mg units | mmol/L |
|---|---|
| Current Mg | 1.4 mg/dL or mmol/L |
| Goal Mg | 2.0 mg/dL or mmol/L |
| Weight | 70 kg |
| Distribution factor | 0.2 L/kg |
→Estimated Mg deficit8.4mmol
- ΔMg：0.60 mmol/L
- ≈ mEq：16.8 mEq
Verification & sources · governance
FAQ
Frequently asked questions
- Does Magnesium Deficit Estimate 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 Magnesium Deficit Estimate calculated in practice? Can you show a worked example?
- Inputs: Mg units mg/dL, Current Mg 1.4 mg/dL or mmol/L, Goal Mg 2.0 mg/dL or mmol/L, Weight 70 kg, Distribution factor 0.2 L/kg → Result: Estimated Mg deficit 84 mg（ΔMg: 0.60 mg/dL, ≈ mmol: 3.5 mmol） Inputs: Mg units mmol/L, Current Mg 1.4 mg/dL or mmol/L, Goal Mg 2.0 mg/dL or mmol/L, Weight 70 kg, Distribution factor 0.2 L/kg → Result: Estimated Mg deficit 8.4 mmol（ΔMg: 0.60 mmol/L, ≈ mEq: 16.8 mEq）