Amino Acids, CSF w/ Consultation
Test Mnemonic
CAABI
CPT Codes
- 82139 - QTY (1)
Includes
- Taurine
- Aspartic Acid
- Hydroxyproline
- Threonine
- Serine
- Asparagine
- Glutamine
- Proline
- Glycine
- Alanine
- Citrulline
- Valine
- Cystine
- Methionine
- Isoleucine
- Leucine
- Tyrosine
- Phenylalanine
- Ornithine
- Lysine
- Histidine
- Arginine
- Glutamic Acid
- Alpha Aminoadipic Acid
- Sarcosine
- Hydroxylysine
- Amino Acid, CSF Review (REVAAC)
- Basic Interpretation (BASINT)
Performing Laboratory
Cleveland Clinic Laboratories
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 mL | Cerebrospinal fluid (CSF) | Clean container | Frozen |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.5 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Ambient | Unacceptable |
| Refrigerated | 24 hours |
| Frozen | 2 weeks |
Days Performed
Varies
Turnaround Time
3 - 15 days
Methodology
| Name | Description |
|---|---|
| Ion Exchange Chromatography |
Reference Range
| Interpretation, CSF Amino Acids | |||||
|---|---|---|---|---|---|
| Sex | Age From | Age To | Type | Range | Range Unit |
| Normal |
Special Info
1) > or = 1mL of CSF from vial # 2 preferred. 2) Indicate family history, clinical condition, diet/or drug therapy information. 3) Analysis of a simultaneous plasma is strongly recommended. Age of patient or date of birth needed.
Clinical Info
Evaluation of unexplained mental retardation, neurologic deterioration, movement disorders, microcephaly, evaluation of disorders of amino acids, mitochondrial energy disorders.