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Serum or Plasma Substance Concentration (Mass Concentration) for a Specific Protein or Biomarker

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

This test measures the amount of a specific protein or substance in your blood, either in serum or plasma. It helps assess various health conditions, including kidney function, inflammation, or metabolic disorders.

Quick summary

["This test provides critical insights into your body’s biochemical balance and potential health risks."]

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

Key facts at a glance

LOINC
57502-7
Short code
11DC 1D p MTP SerPl-sCnc
Synonyms
11DC 1D p MTP SerPl-sCnc
Category
hormone
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

Why This Test Is Done

Your healthcare provider may order this test to diagnose or monitor conditions such as kidney disease, liver problems, infections, or certain cancers. It can also help track how well treatments are working or check for metabolic imbalances like diabetes or thyroid disorders.

What to Expect Before the Test

No special preparation is usually needed, but you may be asked to fast for 8–12 hours before the test if it involves blood drawn from a vein. Avoid smoking or strenuous activity for a few hours beforehand. If you’re on medications, let your provider know.

During the Test Process

A healthcare professional will collect a blood sample from a vein in your arm. You may feel a slight pinch, but it usually doesn’t cause significant discomfort. The sample is then sent to a lab for analysis.

What the Results Mean

Results will be compared to standard reference ranges for your specific protein or analyte. High or low levels may signal underlying health issues, but interpretation depends on your medical history and symptoms. Your provider will discuss findings with you.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Elevated or decreased levels of this protein or substance can indicate kidney dysfunction, immune system disorders, liver disease, or other metabolic disturbances. Some biomarkers are also used as tumor markers or to monitor chronic conditions like diabetes or heart disease. Always consult your provider for personalized insights.

Short name

Serum/plasma protein measurement

Frequently asked questions

How long will I have to wait for my results?
Turnaround times vary by lab and test complexity. Simple serum/plasma tests may return results within 1–3 days, while more specialized assays could take up to 1–2 weeks. Your provider will notify you once results are ready.
Can I eat or drink before this test?
If fasting is required (common for certain protein/biomarker tests), avoid food and liquids—except water—for 8–12 hours beforehand. If no fasting is needed, you can eat and drink normally. Always follow your provider’s specific instructions.
What should I do if I feel dizzy or lightheaded after blood draw?
Lie down for a few minutes, sip water, and apply gentle pressure to the draw site. If symptoms persist, contact your provider immediately. Avoid driving or operating machinery until you feel stable.
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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