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Stain AFB (ZN Stain), Urine

Mycobacteria in your urine which is the main causative agent responsible for Tuberculosis of the Kidney. AFB (Acid Fast Bacilli) staining or ZN (Ziehl-Neelson) staining is a stain that is used for detecting it.

What is Stain AFB (ZN Stain), Urine?

Stain AFB (ZN Stain), Urine is used in conjunction with other tests to arrive at a diagnosis. The procedure involves using two dyes and an acid. Urine samples usually have scanty amounts of Mycobacteria which are tested for TB of the Kidney.

Why is Stain AFB (ZN Stain), Urine suggested?

Stain AFB (ZN Stain), Urine is suggested if you are experiencing:

  • High fever in the evening
  • Flank pains (Side lower back pain)
  • Weight loss

How is Stain AFB (ZN Stain), Urine performed?

Stain AFB (ZN Stain), Urine testing involves:

  • The patient’s urine is collected in a container (early morning sample is usually preferred) for 3 consecutive days.
  • The samples are then dyed and observed on a slide after sufficient dying

What are the parameters measured in Stain AFB (ZN Stain), Urine?

In Stain AFB (ZN Stain), Urine testing, the number of mycobacteria measured:

  • Positive:1+ & above
  • Negative: 0

Preparation before performing Stain AFB (ZN Stain), Urine

The following preparatory measures should be kept in mind for Stain AFB (ZN Stain), Urine testing:

  • For Stain AFB (ZN Stain), the Urine sample should be given early in the morning.
  • The patient should consume adequate amounts of water on days when the sample is needed.

Post-care after Stain AFB (ZN Stain), Urine

It’s a simple urine test that requires no post-care.

Sample types in Stain AFB (ZN Stain), Urine

Stain AFB (ZN Stain), Urine testing requires taking a urine sample that is provided by the patient in leak-proof containers to prevent loss of sample or contamination by other microbes.

Side effects/ risks of Stain AFB (ZN Stain), Urine

Stain AFB (ZN Stain), Urine is done outside the body and there are no side effects or risks of Stain AFB (ZN Stain), Urine testing.

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