General Aspects of Gram Stained Culture Smears

Microscopic Appearance of Control Slides

The microscopic appearance of control slides must also be checked. The Gram positive control, Staphylococcus aureus, should stain blue, and the Gram negative control, Escherichia coli, should stain pink.

Learn more about laboratory continuing education for individuals and lab safety and compliance courses for the whole lab.

Reading Gram Stained Smears From Cultures course details »

Learn more about laboratory continuing education for ASCP, AMT, NCA, and state renewal and recertification requirements »

Get information on laboratory safety and compliance courses for clinical and medical laboratories »