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prognia.

Nephrology

MDRD eGFR

3 inputsNephrology

4-variable MDRD GFR equation (legacy).

MDRD eGFR calculator

Result

≥60 (imprecise at GFR>60)mL/min/1.73m²

G1–G2 — Use CKD-EPI for reporting

CKD-EPI 2021 preferred for clinical reporting.

Lab units

Switching converts the values you entered.

0.3 to 20 mg/dL

18 to 100 years

Sex

How to use it

  1. 1

    Legacy equation. MDRD underestimates GFR at values >60. CKD-EPI is more accurate across all GFR ranges.

  2. 2

    Use when. Some laboratory reports still use MDRD. Useful for historical comparison.

  3. 3

    Report as ≥60. MDRD is not precise above 60 mL/min.

When to use it

Historical lab results using MDRD
Compare trends over time.
When CKD-EPI unavailable
MDRD remains acceptable for GFR < 60 mL/min.
Research databases
Older studies used MDRD — consistent comparison.

A reference for clinicians and students, not medical advice. A score supports a decision; it does not make one. Check every result against the patient in front of you and your local protocol.

At a glance

Specialty
Nephrology
Inputs
3
Type
Formula

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