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Serum/plasma mass concentration of total protein

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

This test measures the amount of protein in your blood, which helps assess overall protein status and kidney function.

Quick summary

["Total protein helps check for conditions like malnutrition, kidney disease, or fluid imbalances."]

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

Key facts at a glance

LOINC
58950-7
Short code
GH sp11 SerPl-mCnc
Synonyms
GH sp11 SerPl-mCnc
Category
chemistry
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 Is This Test Done?

Your healthcare provider may order this test to evaluate protein levels in your blood. Common reasons include diagnosing or monitoring conditions like kidney disease, liver disease, malnutrition, or dehydration. It can also help determine if you’re losing too much protein through urine (e.g., in kidney disorders).

What to Expect Before the Test

No special preparation is needed for this test. You’ll have a small needle inserted into your arm or vein to draw blood. If you’re fasting, follow your provider’s instructions. Avoid heavy meals or alcohol before the test if directed by your doctor.

What to Expect During the Test

The blood sample is collected in a tube and sent to a lab for analysis. The process usually takes a few minutes. If you experience discomfort, your provider may use a different vein or apply a numbing cream.

What to Expect After the Test

You may feel slight bruising, soreness, or swelling at the injection site. Apply gentle pressure to stop bleeding, and avoid vigorous activity for a short time. If you notice unusual bleeding, redness, or swelling, contact your provider.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Total Protein

Frequently asked questions

How long does it take to get my results?
Results are typically available within 1–3 business days, depending on your lab’s processing time. Your healthcare provider will discuss the results with you during your follow-up visit.
Can I eat or drink before this test?
No fasting is required for this test. However, if your provider has specific instructions (e.g., for other related tests), follow those instead. Drink water as usual unless advised otherwise.
What does it mean if my protein levels are too high or too low?
High protein levels may signal dehydration, overproduction of proteins (like in multiple myeloma), or certain liver or kidney conditions. Low levels often point to malnutrition, kidney disease, or liver problems. Your provider will interpret results in the context of your overall health.
  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