Primary cultivation of most medically relevant organisms and colonial morphologic interpretations are completed at:

Question

Quizplus · Accepted Answer

Colonial morphology should not be interpreted prior to a minimum of 18 hours of incubation and not longer than 24 hours.Too early may result in insufficient growth or inability to recognize biochemical changes in the media such as hemolysis or color change when pH indicators are present.Extended incubation periods result in the growth of organisms that may be dying and unable to utilize in rapid testing or result in changes in media that proceed past the end-point pH color change,resulting in erroneous results.

Primary Cultivation of Most Medically Relevant Organisms and Colonial Morphologic