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Register NowProtein Electrophoresis With Interpretation, 24-Hour Urine
Create a Free Account to View PricesTurnaround Time: 2 - 5 days
CPT Code:
84166, 84156
Test Type: 20 mL aliquot, Urine (24-hour)
Stability Time:
|
Temperature |
Period |
|---|---|
|
Refrigerated |
3 days (stability provided by manufacturer or literature reference) |
|
Frozen |
1 month (stability provided by manufacturer or literature reference) |
Reference Range:
Normal pattern. See table.
24-Hour Urine Protein Electrophoresis Interpretation
|
Pattern Description |
Electrophoretic Zones |
|||||
|---|---|---|---|---|---|---|
|
Total Protein (mg/d) |
Albumin |
α1 |
α2 |
β |
γ |
|
|
Normal |
<150 |
+/– |
+/– |
+/– |
||
|
Selective glomerular proteinuria |
||||||
|
mild |
<1500 |
++ |
+ |
+ |
||
|
severe |
>1500 |
+++ |
++ |
++ |
||
|
Nonselective glomerular proteinuria* |
>3000 |
+++ |
++ |
++ |
++ |
++ |
|
Tubular proteinuria |
<1500 |
Trace to + |
Trace |
++ |
++ |
Trace of light chain |
|
Mixed glomerular and tubular proteinuria |
+++ |
+ |
++ |
+ |
+ |
|
|
Albuminuria |
>150 |
++ |
||||
|
Overflow proteinuria from acute phase response |
Trace or present |
++ |
Overview: Work up myeloma, macroglobulinemia of Waldenström, lymphoma, amyloidosis; differentiate between normal renal function, glomerular proteinuria, and tubular proteinuria. Increased glomerular permeability leads to higher concentrations of large proteins in the glomerular filtrate. Diminished tubular reabsorptive capacity results in a marked increase in urinary excretion of low molecular weight problems. Collection Details:Collection Instructions: 12-mL plastic transport tube (LabCorp N° 23597) without preservative. Mix well. Refrigerate at 2°C to 8°C.
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