Sodium benzoate concentration in serum/plasma (mass concentration)
This test measures the amount of sodium benzoate, a preservative and food additive, in your blood. It may be ordered if you have ingested large amounts of products containing sodium benzoate or if symptoms suggest metabolic issues.
["Knowing your sodium benzoate level helps assess exposure risks or potential health effects from dietary supplements or medications."]
Key facts at a glance
- LOINC
- 48289-3
- Short code
- Sodium benzoate LR-mCnc
- Synonyms
- Sodium benzoate LR-mCnc
- Category
- electrolyte
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Ref low
- 136
- Ref high
- 145
- Critical range
- 120 N/A – 160 N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- CPT
- 84295
- SNOMED
- 110741000
- 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 Might Be Ordered
Your healthcare provider may recommend this test if you’ve consumed high amounts of sodium benzoate-containing products (e.g., certain sodas, cosmetics, or supplements) or if you experience unusual symptoms like nausea, vomiting, or unusual fatigue after exposure. It can also be part of a broader evaluation for metabolic disorders.
What to Expect Before the Test
No special preparation is typically needed. You may fast for 8–12 hours before the blood draw, but always follow your provider’s instructions. Wear comfortable clothing and plan to rest during the procedure.
What Happens During the Test
A healthcare professional will insert a small needle into a vein in your arm to collect a blood sample. You may feel a brief pinch, but the procedure usually takes less than 5 minutes. The blood is then sent to a lab for analysis.
What the Results Mean
Results are compared to a reference range for sodium benzoate in blood, though exact values can vary by lab. High levels may indicate recent ingestion or certain metabolic conditions, while low levels suggest normal exposure. Your provider will discuss findings in the context of your symptoms and medical history.
Reference range
Adult: 136-145 mmol/LN/A
No special preparation required. Stay well hydrated.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Short name
Sodium benzoate level
Frequently asked questions
Is this test covered by insurance?
How long will I need to wait for results?
Can I eat or drink before this test?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
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.
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