Glycine

ChemistryAlso known as: L-GlycineAlso known as: GlyAlso known as: Aminoacetic acidmg/(24.h)

Measures glycine levels in serum or plasma collection to assess amino acid metabolism.

Normal Range
1 – 3.5 mg/(24.h)
mg/(24.h)
Abnormal Levels
Consult your provider
Specimen Type
Blood

Why This Biomarker Matters

Abnormal glycine levels can indicate inherited metabolic disorders; early detection enables treatment to prevent kidney, neurological, or developmental complications.

Understanding Your Results

Normal Range

1 – 3.5 mg/(24.h)

Overview

Glycine is an amino acid found in protein-containing foods and produced by your body. This urine test measures 24-hour glycine excretion and is used in genetic metabolic screening. Abnormal glycine levels can indicate several inherited disorders, including primary hyperoxaluria, glycine encephalopathy, or other amino acid metabolism disorders. These conditions can cause kidney stones, neurological problems, or developmental delays if undiagnosed. Testing is often part of newborn screening or evaluation of children with unexplained developmental delay, kidney disease, or seizures.

Technical Information (LOINC Codes)

Standardized laboratory codes for this biomarker

2390-3Primary
Glycine [Presence] in Serum or Plasma
2393-7
Glycine [Mass/time] in 24 hour Urine
mg/(24.h)
47633-3
Glycine [Moles/volume] in DBS
umol/L
27325-0
Glycine [Moles/volume] in Urine
nmol/mL
2389-5
Glycine [Mass/volume] in Cerebral spinal fluid
mg/dL
2392-9
Glycine [Mass/volume] in Urine
mg/dL
2391-1
Glycine [Mass/volume] in Serum or Plasma
mg/dL
25431-8
Glycine [Moles/time] in 24 hour Urine
umol/(24.h)
22718-1
Glycine [Moles/volume] in Specimen
umol/L
22650-6
Glycine [Moles/volume] in Cerebral spinal fluid
umol/L
20644-1
Glycine [Moles/volume] in Serum or Plasma
umol/L
55862-7
Glycine [Moles/mass] in Hair
umol/g
16919-3
Glycine [Presence] in Urine
25921-8
Glycine [Moles/volume] in 24 hour Urine
umol/L
26807-8
Glycine [Presence] in 24 hour Urine
26929-0
Glycine [Moles/volume] in Amniotic fluid
umol/dL
32244-6
Glycine [Moles/volume] in Vitreous fluid
umol/L
32245-3
Glycine [Moles/volume] in Body fluid
umol/L
13397-5
Glycine [Mass/volume] in Amniotic fluid
mg/dL

Available Lab Tests

Order tests that measure this biomarker

Amino Acids (Plasma) (36 biomarkers)

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