MicrobiologyInfectious Disease

Urethral Pus for Culture and Sensitivity

Normal Range
No Growth
Sample Type
Urethral Swab
Fasting
No
Unit
N/A

Function

The Urethral Pus Culture and Sensitivity test is a diagnostic procedure used to identify the specific microorganism (bacteria or fungi) causing an infection in the urethra. Beyond identification, the 'sensitivity' portion determines which antibiotics are most effective at killing the specific pathogen found.

Why it is Ordered

This test is primarily ordered when a patient presents with symptoms of urethritis, such as discharge (pus) from the penis or vagina, painful urination (dysuria), or urethral itching. It is a gold-standard test for diagnosing Sexually Transmitted Infections (STIs) and complicated Urinary Tract Infections (UTIs).

Associated Conditions

  • Gonorrhea: Caused by Neisseria gonorrhoeae.
  • Non-Gonococcal Urethritis (NGU): Often caused by Chlamydia trachomatis or Mycoplasma genitalium.
  • Bacterial Prostatitis: In men, urethral pathogens can sometimes migrate to the prostate.
  • Antibiotic Resistance: The sensitivity report is crucial for managing 'superbugs' that do not respond to standard treatments.

Why Context Matters

False negatives are common if the patient has already started antibiotics before the swab was taken. Additionally, the timing of the sample matters; the highest yield is often obtained several hours after the last urination. Contamination with normal skin flora can also lead to false-positive results for non-pathogenic bacteria.

Lab ranges are statistical averages, not biological laws. "Normal" for a 20-year-old male isn't normal for a 60-year-old female.

Clinical References

Source-of-truth databases and clinical guidelines for Urethral Pus for Culture and Sensitivity:

Research & Guidelines

Related Indicators

Albert's Stain

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Spore Stain

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AFB Culture (Radiometric)

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DR

Medically Reviewed by Dr. Binoy Babu, MBBS

Board Certified Doctor • 10+ Years Clinical Experience

Dr. Babu is a practicing physician dedicated to empowering patients with clear, actionable medical information. He founded 2opi to bridge the gap between complex lab reports and patient understanding, ensuring everyone has access to a reliable second opinion.

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