Name Steward Organization Suggested Domain Suggested Domain Description Cde Group Classification
3-Hydroxyisovalerylcarnitine (C5-OH)/Octanoylcarnitine (C8) [Molar ratio] in Dried blood spot NLM Biomarkers, genetics, and genomics
Biomarkers, genetics, and genomics relevant to AD/ADRD
NIH CDEs
  • NLM
    • Newborn Screening
      • Classification
        • Chemistry

# Datatype
Text

# Name Origin Origin Concept type
Bld.dot [Dried blood spot] LOINC - Part - System LP21304-8 property
SRto [Substance Ratio] LOINC - Part - Property LP6868-6 property
Qn LOINC - Part - Scale LP7753-9 property
Pt [Point in time (spot)] LOINC - Part - Time LP6960-1 property
3 LOINC - Part - Fragments for synonyms LP21267-7 property
3-Hydroxyisovalerylcarnitine (C5-OH) LOINC - Part - Component LP19309-1 object
Octanoylcarnitine (C8) LOINC - Part - Divisors LP70166-1 property

# Definition Tags
3-Hydroxyisovalerylcarnitine/Octanoylcarnitine is a primary marker for 3-Methylcrotonyl-CoA carboxylase deficiency, Beta-Ketothiolase deficiency, Multiple carboxylase deficiency, 3-Hydroxy-3-methylglutaric aciduria, 2-Methyl-3-hydroxybutyric aciduria, Maternal 3-Methylcrotonyl-CoA carboxylase deficiency, and 2-Methylbutyrylglycinuria. TERM DEFINITION/DESCRIPTION(S)

# Designation Tags
3OH-Isovalerylcarn/C8 DBS-sRto Shortname
3-Hydroxyisovalerylcarnitine (C5-OH)/Octanoylcarnitine (C8) [Molar ratio] in Dried blood spot Long Common Name Question Text

# Identifier Origin Version
m1eX2yeInXG NLM CDEs 12-02-2025-download
53172-3 LOINC 2.56