Gram stain shows multiple gram-negative diplococci within polymorphonuclear leukocytes as well as in the extracellular areas of a smear from urethral discharge   References: http://www.fpnotebook.com http://wwnorton.com  

Pseudomonas aeruginosa, an increasingly prevalent opportunistic human pathogen, is the most common Gram-negative bacterium found in nosocomial, or hospital-acquired infections. This ...