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Electron Transfer Flavoprotein Ubiquinone Oxidoreductase Defect C4025586

Published: July 22, 2026Updated: August 20, 2026

A rare metabolic disorder impairing the body's ability to convert food into energy. Typically causes muscle weakness, developmental delay, and metabolic crises. Treatment involves specialized dietary management and supportive care.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 20, 2026Editorial policy

Key facts at a glance

ICD-10
E88.9
ICD-11
5A00.0
Body system
metabolic
Severity
severe
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Warning signs - seek immediate care

!

Hypoglycemia

!

Metabolic acidosis

Fatigue or weight changes

(metabolic)

Significant symptoms that substantially affect daily functioning.

Frequency: Common at all stages

Muscle weakness

(musculoskeletal)

Cardiomyopathy

(cardiovascular)

Diagnosis and tests

How this condition is diagnosed and what test results mean.

Initial screening tests

1

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

1

Drug therapy and clinical monitoring

Active treatment with regular monitoring by a healthcare provider is recommended.

medication
2

Fatty Acid Oxidation Supportive Diet

High-carbohydrate, moderate-protein, low-fat dietary approach with frequent small meals to provide alternative energy substrates and reduce metabolic stress.

dietary
3

Fasting Avoidance Protocol

Strict avoidance of prolonged fasting with implementation of scheduled feeding intervals and emergency protocols during illness or procedures.

lifestyle

Additional treatment options

Metabolic Stabilization

Use of metabolic supports, L-carnitine supplementation, and riboflavin as appropriate to support mitochondrial function and energy metabolism.

medication

Metabolic and Cardiac Monitoring

Regular monitoring of metabolic parameters, cardiac function, and growth development to detect complications early and adjust management.

monitoring

Supportive and Palliative Care

Multidisciplinary supportive care to address symptom burden, nutritional support, and quality of life considerations in collaboration with metabolic specialists.

complementary

When to seek medical help

Recognize when you need immediate medical attention.

See a doctor within 24 hours

Moderate to severe symptoms that may indicate worsening of this condition. Prompt medical evaluation is recommended.

Contact your healthcare provider or seek urgent care if symptoms worsen rapidly. Go to the emergency department for life-threatening symptoms.

Frequently asked questions

Common questions about this topic.

Q

What is Electron Transfer Flavoprotein Ubiquinone Oxidoreductase Defect C4025586?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Medication Comparisons

Compare medications used to treat Electron Transfer Flavoprotein Ubiquinone Oxidoreductase Defect C4025586. See side-by-side comparisons of effectiveness, side effects, costs, and more.

View Medication Comparisons

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy