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Ziehl–Neelsen (ZN) Stain for Acid-Fast Bacteria

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Ziehl–Neelsen (ZN) Stain for Acid-Fast Bacteria

Accredited Facility E-report Qualified Specialists

The Ziehl–Neelsen (ZN) stain is a special microbiological technique used to detect acid-fast bacilli (AFB), particularly Mycobacterium species. It helps diagnose tuberculosis and related mycobacterial infections.

  • If tuberculosis is suspected.
  • During evaluation of chronic cough or lung infection.
  • When persistent fever, weight loss, or night sweats occur.
  • During assessment of suspected mycobacterial infection.
  • As part of respiratory or infectious disease workup.
  • Sample type may include sputum, tissue, or body fluids.
  • Multiple sputum samples may be required for accuracy.
  • Follow sterile collection instructions carefully.
  • Inform the healthcare provider about symptoms and exposure history.
  • Avoid contamination of samples.
    • Ziehl–Neelsen (ZN) Stain for Acid-Fast Bacteria
    No labs currently offering this test.