What is the best test to confirm gonorrhea in a female?

• A. Culture of the endocervix
• B. Culture of vaginal discharge
• C. Gram stain of cervical discharge
• D. Presence of yellow discharge

Answer: (A)

The key idea is that confirming gonorrhea in a female hinges on isolating the organism from its likely site of infection and being able to test its antibiotic susceptibility. Culturing an endocervical specimen does exactly that: it allows direct growth and identification of Neisseria gonorrhoeae from the endocervix, and it enables susceptibility testing, which is crucial given evolving resistance patterns. In women, the organism is often concentrated in the endocervical canal, and culture provides a definitive result with high specificity. Gram stain of cervical discharge can be helpful in men with urethral symptoms, but in women its sensitivity is limited because infections can be paucibacillary or involve mixed flora, making it less reliable for confirmation. Culturing vaginal discharge is even less ideal due to the surrounding vaginal flora confounding results. Simply noting yellow discharge is a clinical sign, not a diagnostic test. While nucleic acid amplification tests are now widely used for screening due to high sensitivity, culture of the endocervical specimen remains the best method for definitive confirmation and for guiding treatment when resistance testing is needed.