80181-1
LaboratoryS-adenosylmethionine and S-adenosylhomocystine pattern [Interpretation] in Serum or Plasma Narrative
Definition
S-adenosylhomocysteine (SAH) and S-adenosylmethionine (SAM) levels are measured when investigating folate and vitamin B12 deficiency, and the ratio of SAH to SAM is also used as a measure of methylation status. Low levels of SAM have also been associated with depression, dementia, vacuolar myelopathy and liver disease.
LOINC 6-Axis Classification
Component
S-adenosylmethionine & S-adenosylhomocystine pattern
Property
Imp
Time Aspect
Pt
System
Ser/Plas
Scale Type
Nar
Method Type
N/A
Details
Class
CHEM
Order/Observation
Observation
Short Name
SAMe and SAH pattern SerPl-Imp
Display Name
S-adenosylmethionine and S-adenosylhomocystine pattern Nar [Interp]
Related Names
Frequently Asked Questions
What is LOINC code 80181-1?
LOINC code 80181-1 identifies "S-adenosylmethionine and S-adenosylhomocystine pattern [Interpretation] in Serum or Plasma Narrative". S-adenosylhomocysteine (SAH) and S-adenosylmethionine (SAM) levels are measured when investigating folate and vitamin B12 deficiency, and the ratio of SAH to SAM is also used as a measure of methylation status. Low levels of SAM have also been associated with depression, dementia, vacuolar myelopathy and liver disease.
What does 80181-1 measure?
This code measures S-adenosylmethionine & S-adenosylhomocystine pattern in Ser/Plas. It belongs to the CHEM class in the LOINC classification.
What is LOINC?
LOINC (Logical Observation Identifiers Names and Codes) is a universal standard for identifying laboratory and clinical observations. It is maintained by the Regenstrief Institute and used worldwide for health data exchange.