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Alpha-1 Globulin, 24-Hour Urine — Electrophoresis, Mass Fraction

Published: August 9, 2026Updated: August 16, 2026

Measures the alpha-1 globulin fraction of protein in a 24-hour urine collection using electrophoresis to help evaluate protein loss and identify the types of proteins present.

Quick summary

["This test shows how much alpha-1 globulin protein is lost in the urine and helps evaluate certain kidney and protein-related conditions."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
13984-0
Short code
Alpha1 Glob 24h MFr Ur Elph
Synonyms
Alpha1 Glob 24h MFr Ur Elph
Category
liver
Sample
urine
Container
Sterile urine container
Units
N/A
Ref low
44
Ref high
147
Critical range
7.2 N/A – 7.6 N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
electrophoresis
CPT
84075
SNOMED
27550007
Specimen volume
10 mL
Stability
Room temperature: 2h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
4–24 hours
Order
routine

What is this test?

This test measures the alpha-1 globulin fraction of protein in urine collected over 24 hours. Urine electrophoresis separates proteins into groups so their relative amounts can be identified.

Why might I need this test?

It may be ordered to investigate unexplained protein in the urine, monitor kidney conditions, or help identify unusually high amounts of a particular protein group. It is often interpreted alongside total urine protein, kidney function tests, and serum protein testing.

How is the test performed?

You collect all urine produced for 24 hours, and a laboratory analyzes it using electrophoresis. The laboratory reports the amount or proportion of alpha-1 globulin in the collection.

How do I prepare for the test?

Follow the collection instructions provided by your healthcare professional, including the start and end times and how to store the container. Do not change your normal diet or medication routine unless your clinician specifically tells you to do so.

Reference range

Adult: 44-147 U/LN/A

Specimen: urine

No special preparation required. Avoid fatty meals before the test if possible.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

24-Hour Urine Protein Electrophoresis

Frequently asked questions

Is this the same as a routine urinalysis?
No. A routine urinalysis may screen for protein, while this test uses electrophoresis to measure the alpha-1 globulin fraction of urine protein.
Why is a 24-hour urine collection needed?
A timed collection accounts for all urine produced during a full day, providing a more complete measurement than a single urine sample.
Does an abnormal result mean I have a specific disease?
No. An abnormal result does not identify one disease by itself and is usually interpreted with other laboratory results, symptoms, and medical history.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy