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Urine Protein/Creatinine Ratio Calculator (Ginsberg 1983)
x402
Urine Protein/Creatinine Ratio Calculator (Ginsberg 1983) is a paid API for AI agents from api.magentlab.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).
Calculates the urine protein-to-creatinine ratio (PCR) in mg/mg from a spot urine sample, with clinical band interpretation and estimated 24-hour protein excretion.
Price / call$0.005
Success—
StatusUnknown
How this service works
Urine protein/creatinine ratio (mg/mg) from spot urine protein and creatinine (Ginsberg 1983). Also returns estimated_g_day equal to the rounded ratio as a numeric estimate of 24-h protein. Bands: <0.2 within normal limits, >3.5 nephrotic-range. Not ACR. Not a 24-h collection. Deterministic published formula with citation; not a diagnosis.
Output
Returns the urine protein-to-creatinine ratio (PCR) in mg/mg, the estimated 24-hour protein excretion in g/day (rounded ratio), and a clinical band label indicating whether the result is within normal limits (<0.2), elevated, or in the nephrotic range (>3.5), along with the Ginsberg 1983 citation.
Example use cases
Nephrotic range proteinuria screening
“I have a patient with a spot urine protein of 450 mg/dL and urine creatinine of 120 mg/dL — calculate their urine PCR and tell me whether they're in the nephrotic range (above 3.5).”
Routine proteinuria monitoring in CKD
“My CKD patient's spot urine shows protein at 55 mg/dL and creatinine at 210 mg/dL. Can you compute the protein-to-creatinine ratio and let me know if it's within normal limits?”
Estimating 24-hour protein from spot urine
“Rather than doing a full 24-hour urine collection, can you estimate my patient's daily protein excretion from a spot urine protein of 180 mg/dL and creatinine of 95 mg/dL using the Ginsberg formula?”
Technical details
Endpoint
GEThttps://api.magentlab.com/api/calc/urine_pcrWhen to prefer
Use this endpoint when you need a quick, evidence-based estimate of proteinuria severity from a spot urine sample without requiring a 24-hour collection. It is ideal for nephrotic range screening, CKD monitoring, and proteinuria triage. Choose this over ACR (albumin-to-creatinine ratio) endpoints when total protein (not albumin) measurements are available, and when you specifically need the Ginsberg 1983 PCR formula.
Side effects
- Missing required urine_protein_mg_dl parameter returns an error
- Out-of-range urine_protein_mg_dl (outside 0.1–2000 mg/dL) may be rejected or flagged
- Out-of-range urine_creatinine_mg_dl (outside 1–500 mg/dL) may be rejected
- Neither creatinine parameter provided causes calculation failure
- Non-numeric inputs for concentration fields return validation errors
- Payment not included or insufficient (x402) results in 402 Payment Required response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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