NURS 6501: Final Exam: Please contact Assignment Samurai for help with NURS 6501: Final Exam or any other assignment. Email: assignmentsamurai@gmail.com   A young adult male patient presents with painful urination and a purulent discharge from the urethra. A Gram-stain of the discharge shows Gram-negative, intracellular diplococci. What is the most likely causative organism? Group of answer choices

• Chlamydia trachomatis
• Ureaplasma urealyticum
• Mycoplasma genitalium
• Neisseria gonorrhoeae

The correct answer is: Neisseria gonorrhoeae   Explanation: The patient's symptoms (dysuria and purulent urethral discharge) along with the Gram-negative intracellular diplococci on microscopy are classic for gonococcal urethritis caused by:

• Neisseria gonorrhoeae – A Gram-negative diplococcus that is intracellular (often seen inside neutrophils).

Why Not the Others?

• Chlamydia trachomatis: Causes non-gonococcal urethritis (NGU) with mucoid/purulent discharge, but no organisms are seen on Gram stain (obligate intracellular, requires PCR/NAAT).
• Ureaplasma urealyticum & Mycoplasma genitalium: Also cause NGU but are too small to visualize on Gram stain (no cell wall).

Key Diagnostic Clue: Gram-negative intracellular diplococci are pathognomonic for gonorrhea in this clinical context. Thus, Neisseria gonorrhoeae is the definitive diagnosis