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Symptoms » Fatigue » Diagnostic Tests

Diagnostic Tests for Fatigue

Diagnostic Test list for Fatigue:

The list of diagnostic tests mentioned in various sources as used in the diagnosis of Fatigue includes:

  • ( should be selected judiciously)
  • Physical examination
    • Blood pressure taken when lying down and again after rapidly arising to standing position ( looking for postural hypotension of Addison's disease)
    • Feel lymph nodes for enlargement
    • Abdominal examination looking for an enlarged liver or spleen
    • Full nervous system examination. If abnormalities are found may suggest muscular dystrophy, motor neurone disease or Parkinson's disease, Multiple sclerosis
    • Examine for mild signs of chronic fatigue syndrome including muscle tenderness, mild red pharynx and tender slightly enlarged neck lymph nodes
  • Blood tests
    • Full blood count and ESR
    • Electrolytes including calcium and magnesium ( low potassium with Conn's syndrome)
    • Renal function tests
    • Liver function tests
    • Blood sugar
    • Thyroid function tests
    • Pregnancy test - if indicated.
    • Iron studies to detect iron deficiency and hemochromatosis
    • Serum cortisol to help differentiate Addison's disease and hypopituitarism
    • Celiac screen - if indicated.
    • Syphilis screen - if indicated.
    • ANA test, Rheumatoid factor and serum complement (to screen for autoimmune disorders)
    • HIV serology - if indicated.
    • Chronic infection screening ( such as Hepatitis A,B,C,D and E, cytomegalovirus, Epstein-Barr virus, Ross River virus, Lyme disease, brucellosis, Q fever, tuberculosis, malaria, infective endocarditis, toxoplasmosis)
    • Serial blood cultures, f there is a significant fever
    • Tissue markers for malignancy
  • Urine tests
    • Urine microscopy and culture to detect urinary tract infection
    • Urine analysis testing for increased levels of myoglobin which may be found in any condition causing significant muscle cell damage
    • Urine Creatinine levels to rule out muscle disease
    • 24 hour urine aldosterone level to diagnose hyperaldosteronism (Conn's syndrome)
  • Sputum tests
    • Sputum culture for acid fast bacilli (tuberculosis)
  • Stool tests
    • 24 hour fat content - if suspect malabsorption syndrome.
  • Radiological investigations (depending on suspicion)
  • Muscle biopsy - will help differentiate certain collagen diseases, muscular dystrophy and.
  • Trichinosis
  • Tensilon test (edrophonium) test - if suspect myasthenia gravis.
  • EMG (electromyogram) - may be considered if suspecting primary neuromuscular disorders.
  • Overnight polysomnography (sleep studies) - are indicated if suspect sleep apnea.

Home Diagnostic Testing

These home medical tests may be relevant to Fatigue causes:

Conditions listing medical symptoms: Fatigue:

The following list of conditions have 'Fatigue' or similar listed as a symptom in our database. This computer-generated list may be inaccurate or incomplete. Always seek prompt professional medical advice about the cause of any symptom.

Select from the following alphabetical view of conditions which include a symptom of Fatigue or choose View All.

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Conditions listing medical complications: Fatigue:

The following list of medical conditions have 'Fatigue' or similar listed as a medical complication in our database.


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