Microbiology Reporting Terminology

The following terminology is used when two or more of the organisms listed in a specific category appear in a specimen.

 

Mixed aerobic and anaerobic flora

More than 4 different aerobic, facultative aerobic and anaerobic bacteria, no predominant species.

 



Mixed anaerobic flora

More than 2 different anaerobic bacteria, no predominant species.



 

Mixed cervical-vaginal flora

Anaerobes* (if anaerobe culture was performed)

Corynebacterium sp.

Staphylococcus sp., coagulase-negative

Streptococcus sp. (except beta hemolytic streptococci)

Lactobacillus sp.

Enterobacteriaceae and other gram-negative rods*

Yeast*

 

Mixed cutaneous flora

Corynebacterium sp.

Bacillus sp.

Staphylococcus sp., coagulase-negative

Streptococcus sp. (except beta hemolytic Streptococci)

Yeast*

 

Mixed flora

Corynebacterium sp.

Staphylococcus sp., coagulase-negative

Streptococcus sp. (except beta hemolytic streptococci)

Lactobacillus sp.

Enterobacteriaceae*

Yeast*

 

Mixed gram-negative flora

2 or more different organisms, no predominant species

 

Mixed intestinal flora

Enterobacteriaceae

Pseudomonas sp.*

Streptococcus sp.

Staphylococcus sp., coagulase-negative

Yeast*

 

Mixed oropharyngeal flora

Corynebacterium sp. (except C. diphtheriae-requires special request)

Neisseria sp., (N. meningitidis and N. gonorrhoeae-requires

special request)

Staphylococcus sp., coagulase-negative

Streptococcus sp. (except beta hemolytic streptococci and S. pneumoniae)

Yeast*

Haemophilus sp.*, Eikenella sp.*, Capnocytophaga sp.*

 

*In small numbers only

 

Frequently Used Terms

From broth only: no growth on primary plates, organisms seen by gram stain or subculture from enrichment broth only; no quantitation possible.



Hemadsorbing virus: screening test for viruses growing in tissue culture, suggest virus of influenza-, parainfluenza- or mumps-group.



Culture in Progress: culture is being examined and will be updated as more information becomes avaiable.



Insufficient growth: culture needs further incubation but is still in progress.