Glutamate

ChemistryAlso known as: Glutamic acidAlso known as: L-Glutamic acidAlso known as: L-Glutamatemg/(24.h)

Measures the amount of glutamate, an amino acid and neurotransmitter, excreted in serum or plasma.

Normal Range
0.8 – 2 mg/(24.h)
mg/(24.h)
Abnormal Levels
Consult your provider
Specimen Type
Blood

Why This Biomarker Matters

Glutamate excretion reflects your body's amino acid metabolism. Abnormal levels may indicate metabolic disorders, kidney dysfunction, or neurological concerns requiring medical evaluation.

Understanding Your Results

Normal Range

0.8 – 2 mg/(24.h)

Overview

Glutamate is a non-essential amino acid and a key neurotransmitter in the brain. A 24-hour urine glutamate test measures how much of this amino acid your body is excreting over a full day. Elevated urinary glutamate may indicate metabolic disorders, kidney disease, or neurological conditions. Abnormally low levels could suggest nutritional deficiencies or absorption problems. This test provides insight into your amino acid metabolism and overall metabolic health.

Technical Information (LOINC Codes)

Standardized laboratory codes for this biomarker

20642-5Primary
Glutamate [Moles/volume] in Serum or Plasma
umol/L
2366-3
Glutamate [Mass/time] in 24 hour Urine
mg/(24.h)
30348-7
Glutamate [Moles/volume] in Urine
umol/L
2365-5
Glutamate [Mass/volume] in Urine
mg/dL
2363-0
Glutamate [Presence] in Serum or Plasma
2364-8
Glutamate [Mass/volume] in Serum or Plasma
mg/dL
25429-2
Glutamate [Moles/time] in 24 hour Urine
umol/(24.h)
22721-5
Glutamate [Moles/volume] in Specimen
umol/L
22652-2
Glutamate [Moles/volume] in Cerebral spinal fluid
umol/L
32614-0
Glutamate [Moles/volume] in Body fluid
umol/L
55861-9
Glutamate [Moles/mass] in Hair
umol/g
16916-9
Glutamate [Presence] in Urine
2362-2
Glutamate [Mass/volume] in Cerebral spinal fluid
mg/dL
25917-6
Glutamate [Moles/volume] in 24 hour Urine
umol/L
26805-2
Glutamate [Presence] in 24 hour Urine
27104-9
Glutamate [Moles/volume] in Amniotic fluid
umol/dL
32241-2
Glutamate [Moles/volume] in Vitreous fluid
umol/L
47623-4
Glutamate [Moles/volume] in DBS
umol/L
13395-9
Glutamate [Mass/volume] in Amniotic fluid
mg/dL

Available Lab Tests

Order tests that measure this biomarker

Amino Acids (Plasma)

$193.00
Results in 3-7 business days