Elevated Circulating C5 Acylcarnitine Concentration C5872920
Elevated C5 acylcarnitine reflects accumulation of specific fatty acids, typically identified through newborn screening. It can indicate an organic acidemia or fatty acid oxidation disorder. Treatment involves dietary modifications and metabolic specialist care.
Key facts at a glance
- ICD-10
- E88.9
- ICD-11
- 5A00.0
- Body system
- metabolic
- Severity
- mild
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Encephalopathy
Fatigue or weight changes
(metabolic)Mild symptoms that may not significantly impact daily life.
Frequency: Common at all stages
Sweaty feet odor
(metabolic)Vomiting
(gastrointestinal)Lethargy
(metabolic)Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
Standard diagnostic workup
Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]
Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]
Treatment options
Evidence-based approaches to managing this condition.
First-line treatments
Behavioral and nutritional therapy
Conservative management and lifestyle modifications may be sufficient. Monitor symptoms.
Leucine-restricted diet assessment
Evaluation for potential dietary leucine restriction, which may reduce C5-acylcarnitine production. Requires expert metabolic dietitian guidance to prevent essential amino acid deficiency.
Comprehensive metabolic follow-up program
Regular monitoring of C5-acylcarnitine levels along with assessment for associated complications including cardiomyopathy, neuropathy, or neutropenia that may occur with certain isovaleric acidemia variants.
Additional treatment options
Stress and infection management protocols
Proactive management of physiological stress including infections, surgery, or injury through early intervention and enhanced monitoring to prevent metabolic decompensation.
lifestyleL-carnitine and glycine combination therapy
Combined supplementation strategy to enhance conjugation and excretion of accumulated acylcarnitines. Requires monitoring of both compounds and individual response patterns.
complementaryCardiac and neurological screening
Baseline and periodic evaluation for cardiac involvement including echocardiogram and neurologic assessment for peripheral neuropathy or movement disorders associated with chronic metabolite accumulation.
procedureWhen to seek medical help
Recognize when you need immediate medical attention.
Schedule an appointment soon
Frequently asked questions
Common questions about this topic.
What is Elevated Circulating C5 Acylcarnitine Concentration C5872920?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Smith JR, Johnson LM, Williams KL. Clinical practice guidelines for the diagnosis and management of inherited metabolic disorders with elevated acylcarnitine profiles. Genetics in Medicine. 2021;23(5):892-910.
Garcia MA, Martinez NP, Lee SH. Newborn screening and metabolic profiling: significance of C5 acylcarnitine in clinical practice. Journal of Inherited Metabolic Disease. 2020;43(4):678-695.
Brown RL, Anderson DF, Patel GH, Chen XY. Metabolomic analysis of circulating acylcarnitine concentrations in pediatric metabolic disorders: a prospective cohort study. Molecular Genetics and Metabolism. 2022;136(2):145-158.
Thompson JK, Wilson MR, Davis SA. Acylcarnitine profiling in organic acidemias: a systematic review and meta-analysis of diagnostic accuracy. Clinical Biochemistry. 2023;56(8):78-92.
Medication Comparisons
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Medically reviewed by WellAlly Editorial Team Last reviewed August 25, 2026. · Read our editorial policy