Transferrin
Detects the iron-transport protein transferrin in serum or plasma.
Why This Biomarker Matters
Presence of transferrin in urine signals potential kidney damage or glomerular dysfunction, warranting further evaluation of renal health.
Understanding Your Results
Normal Range
0.15 mg/dL
Optimal Ranges
Clinician-defined 4-point reference thresholds (mg/dL)
Default Range
Overview
This test measures transferrin, an iron-transport protein, in urine. Normally, transferrin does not appear in significant amounts in urine because it's too large to filter through healthy kidneys. Elevated urinary transferrin suggests kidney damage or a glomerular filtration problem, as the protein is 'leaking' into urine. This finding may indicate early kidney disease, diabetes complications, or other renal conditions requiring further evaluation.
Technical Information (LOINC Codes)
Standardized laboratory codes for this biomarker
3034-6Primary3035-322674-674977-098996-2Available Lab Tests
Order tests that measure this biomarker