Diagnostic Tests for Itching skin

Diagnostic Test list for Itching skin:

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

• Skin examination
  • Inspect carefully for subtle skin disorders which may suggest urticaria (hives), dermatitis herpetiformis, eczema, scabies and pemphigus
• Physical examination
  • Jaundice of skin (yellowing of the skin) which may suggest obstructive jaundice, hepatitis, liver metastases and primary biliary cirrhosis
  • Plethoric (red to blue) facial colour may suggest polycythaemia rubra vera
  • Unusual odor may suggest chronic renal failure, liver failure or diabetic acidosis
  • Examine all lymph nodes for enlargement which may suggest lymphoma
  • Abdominal examination looking for enlarged liver which may suggest obstructive jaundice, hepatitis, liver metastases, carcinoid syndrome and primary biliary cirrhosis
• Blood tests
  • Full blood count and ESR
  • Renal function tests and electrolytes
  • Liver function tests
  • Iron studies
  • Thyroid function tests
  • Fasting blood sugar
  • Pregnancy test
  • Hepatitis serology
  • Mitochondrial autoantibodies, if suspect primary biliary cirrhosis
  • Serum protein electrophoresis if suspect multiple myeloma
• Urine tests
  • Urinalysis
  • 5-HIAA, if suspect Carcinoid syndrome
• Stool tests
  • Stool sample for microscopy looking for eggs and cysts that may indicate infestation
• Skin tests
  • Microscopic examination of any skin burrows to detect scabies mite
  • Patch testing to detect skin allergies
  • Skin biopsy may be necessary
• Radiological investigations
  • Chest X-Ray may help detect lymphoma
  • Liver ultrasound to detect evidence of obstructive jaundice or liver metastasis if suspect Carcinoid syndrome
• Bone marrow biopsy - may be required if suspect polycythaemia rubra vera and leukemia.
• Lymph node biopsy - may be required if suspect lymphoma.

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