Comparison of Gram stain with DNA probe for detection of Neisseria gonorrhoeae in urethras of symptomatic males.

The comparison of Gram-stained urethral smears with Gen-Probe for the detection of Neisseria Gonorrhoeae in the urethras of males with symptomatic urethritis revealed a 99.6% correlation between the two methods. A simple Gram stain would appear to be the method of choice for the detection of gonorrhea in symptomatic males, because it is much less expensive and much more rapid than the Gen-Probe method.