4-Hydroxyphenyllactate

ChemistryAlso known as: 4oh-phenyllactic acidAlso known as: 4-Hydroxyphenyllactic acidN/A

Detects 4-hydroxyphenyllactate in serum or plasma, a marker of amino acid metabolism.

Normal Range

Consult your provider

N/A

Abnormal Levels

Consult your provider

Specimen Type

Blood

Why This Biomarker Matters

Abnormal levels may indicate rare metabolic disorders affecting tyrosine breakdown, requiring specialized evaluation and management to prevent complications.

Overview

4-hydroxyphenyllactate is an organic compound found in urine that can indicate disturbances in amino acid metabolism. This urine test detects abnormal levels of this metabolite, which may signal a rare metabolic disorder or nutritional imbalance. Elevated levels can sometimes indicate disorders affecting the breakdown of the amino acid tyrosine. This test is typically ordered when patients have unexplained symptoms or abnormal newborn screening results suggesting a metabolic problem, allowing early intervention before serious health issues develop.

Technical Information (LOINC Codes)

Standardized laboratory codes for this biomarker

72430-2Primary

4-Hydroxyphenyllactate [Moles/volume] in Serum or Plasma

umol/L

29870-3

4-Hydroxyphenyllactate [Presence] in Urine

72429-4

4-Hydroxyphenyllactate [Moles/volume] in Cerebral spinal fluid

umol/L

Available Lab Tests

Order tests that measure this biomarker

Urinary Organic Acids

$586.08

Results in 7-14 business days