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Unit Code 88829:
C4 Acylcarnitine, Quantitative, Urine

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Useful For

Evaluation of patients with abnormal newborn screens showing

elevations of C4 to aid in the differential diagnosis of SCAD

deficiency and IBD deficiency

Testing Guides and Forms

Method Name

Flow Injection Analysis-Tandem Mass Spectrometry (MS/MS)
Stable Isotope Dilution

Reporting Name

C4 Acylcarnitine, QN, U

Ordering Mnemonic

C4U

Aliases

Acylcarnitines, urine

Butyrylcarnitine

IBDH

IBDH (isobutyryl-CoA dehydrogenase) deficiency

Iso-butyrylcarnitine

Isobutyryl

Isobutyryl-CoA dehydrogenase (IBDH) deficiency

Isobutyrylcarnitine

SCAD (short chain acyl-CoA dehydrogenase) deficiency

Short chain acyl-CoA dehydrogenase (SCAD) deficiency


Key