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Lactate concentration in serum/plasma (qualitative or quantitative measurement)

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

This test measures the amount of lactate, a byproduct of energy production in your body, typically found in blood. High levels may signal conditions like poor circulation, infections, or metabolic issues.

Quick summary

["Lactate levels can signal serious health risks and guide treatment decisions."]

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

Key facts at a glance

LOINC
95710-0
Short code
LACV IgA Spec Ql IA
Synonyms
LACV IgA Spec Ql IA
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
ia
CPT
82784
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 doctor may order this test to check for conditions affecting how your body uses oxygen, such as heart or lung problems, severe infections, or low blood sugar. It can also help monitor patients with shock, sepsis, or during surgery.

What Does the Test Involve?

A blood sample is taken from a vein, usually in your arm. The sample is sent to a lab where it is analyzed to measure lactate levels. Results may be qualitative (yes/no) or quantitative (exact amount).

What Are Common Causes of Abnormal Results?

Elevated lactate levels can occur due to conditions like severe anemia, heart failure, kidney problems, or uncontrolled diabetes. Low levels may be seen in healthy individuals or those with certain metabolic disorders.

How Is This Test Used in Treatment?

Results help doctors assess and manage conditions like lactic acidosis, where lactate builds up dangerously in the blood, causing acidity. Treatment may include fluids, medications, or addressing underlying causes like infections or poor circulation.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Lactate Level (Serum/Plasma)

Frequently asked questions

What does a high lactate level mean?
A high lactate level may indicate poor oxygen delivery to tissues, infections, or metabolic disorders. Your doctor will review your symptoms and other test results to determine the cause.
How often should I get this test?
Your doctor will decide how often you need this test based on your health condition. It may be done occasionally for monitoring or more frequently if you have a known risk factor.
Can lifestyle changes affect lactate levels?
Yes, factors like exercise intensity, hydration, and diet can influence lactate levels. Avoiding strenuous activity before testing and staying well-hydrated may help ensure accurate results.
  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