Amino Acid Quantitation (Free Homocystine)
- LIS Mnemonic: AAQP
Collect
Green (Sodium heparin)
Volume Required
3.0 mL
Minimum Required
1.0 mL
Transport
Transport on ice. Storage requirements: Spin and freeze plasma immediately.
Stability
1-2 hours on ice
Processing
Deliver to lab immediately for processing. If delay, spin and freeze plasma until delivery is possible. If sending specimen from outside CHOP, send on dry ice by overnight courier (Mon-Thurs only).
Unacceptable conditions
room temperature
Days Performed
Monday-Friday
Reported
3-5 days
Reflex Testing
N/A
CPT
82139
Methodology
UPLC
Remarks
Amino Acids detected:p-serine,taurine,p-ethanolamine,urea,aspartic acid, oh-proline, threonine, serine, asparagine, glutamate, glutamine, sarcosine, a-amino-adipic, proline, glycine, alanine, citrulline, a-amino butyric, valine, cystine, methionine, cystathionine, isoleucine, leucine, tyrosine, phenylalanine, b-alanine, b-amino isobutyric, homocystine, GABA, ethanolamine, ammonia, oh-lysine, ornitine, lysine,1-me-histidine, histidine, 3-me-histidine, anserine, carnosine, arginine
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