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Macromolecular Protein Electrophoresis (Serum/Plasma) with Manual Qualitative Screening

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

This test measures the distribution of different protein types in your blood, often used to identify abnormalities in protein patterns, such as those seen in conditions like multiple myeloma or other plasma cell disorders.

Quick summary

["Helps diagnose and monitor blood protein disorders by analyzing protein bands in your blood sample."]

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

Key facts at a glance

LOINC
95841-3
Short code
Monos+Macros NFr Spt Manual
Synonyms
Monos+Macros NFr Spt Manual
Category
chemistry
Sample
sputum
Container
Sterile sputum container
Units
N/A
Ref low
0.8
Ref high
1.2
Critical range
— – 5 N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
manual-count
CPT
85610
SNOMED
396252006
Specimen volume
3-5 mL
Stability
Room temperature: 2h, Refrigerated: 24h
TAT
4–24 hours
Order
routine

What This Test Measures

Macroprotein electrophoresis separates proteins in your blood into distinct bands based on size and charge. This method helps identify abnormal protein patterns, such as monoclonal spikes (e.g., M proteins) that may indicate conditions like multiple myeloma or Waldenström macroglobulinemia. The manual screening step ensures qualitative assessment of protein bands for initial detection.

How the Test Works

A small blood sample is drawn and processed to separate proteins using an electric field. The resulting bands are visually inspected for any unusual patterns or concentrations of specific proteins. This qualitative approach is useful for screening but may require further quantitative testing for confirmation.

When You Might Need This Test

This test is often ordered when doctors suspect conditions affecting protein production or distribution in the blood, such as plasma cell disorders, liver disease, or certain cancers. It may also be used as part of a broader diagnostic workup for unexplained symptoms like fatigue, bone pain, or abnormal lab results.

Preparation for the Test

No special preparation is typically required for this test. You may have a light snack or drink as usual, but avoid heavy meals before drawing blood. Inform your healthcare provider if you are on blood thinners or have any allergies to blood collection materials.

Reference range

INR: 0.8-1.2 (warfarin: 2.0-3.0)N/A

Specimen: sputum

Inform your healthcare provider if you are taking blood thinners. No special preparation required.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Abnormal protein patterns detected by macroprotein electrophoresis can signal underlying health issues. For example, a prominent monoclonal spike may indicate multiple myeloma, a cancer of plasma cells. This test helps guide further testing, such as bone marrow biopsy or additional protein analysis, to confirm a diagnosis and plan treatment.

Short name

Macroprotein Electrophoresis (Serum/Plasma)

Frequently asked questions

What are the common reasons doctors order this test?
Doctors may order this test to investigate symptoms like unexplained fatigue, weight loss, bone pain, or high levels of certain proteins in blood tests. It can also be part of a routine check for conditions affecting protein metabolism, such as liver disease or certain cancers.
How long does it take to get results from this test?
Results from this qualitative screening test are often available within a few days to a week, depending on the lab’s workflow. Confirmatory or more detailed quantitative testing may take longer, sometimes up to several weeks.
Can I eat or drink before this test?
Yes, you can eat a light meal or drink water as usual before the blood draw. Avoid heavy meals, as they may affect blood composition. Always follow your healthcare provider’s specific instructions for your situation.
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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