colony count


Also found in: Medical.

colony count

[′käl·ə·nē ‚kau̇nt]
(microbiology)
The number of colonies of bacteria growing on the surface of a solid medium.
References in periodicals archive ?
Limitations of the study include the fact that the clinical relevance of the end point of bacterial colony counts "may be in question," Dr.
In the microbial growth study, all HuBA types did not show significant differences in the morphology and size of colonies as well as in colony count in comparison to SBA.
The colony count decreases after immersion in to household denture cleanser solutions like baking soda, Sodium hypochlorite, alcohol, vinegar, household bleach, and were clinically significant.
Unpreserved specimens exceeding the two-hour limit that have not been refrigerated should not be accepted for analysis due to potential bacterial overgrowth and invalidation of bacterial colony counts.
Considering that colony counts of less than 100,000 per milliliter are often considered clinically significant, the author decided that the cutoff should be less than 100,000; 50,000 CFU/mL was arbitrarily chosen as the cutoff for significant bacteriuria.
The colony count that has traditionally been accepted as indicating a urinary tract infection 100,000/mL of urine.
The special OTs which did not possess any extra methods for air purification like UV rays, HEPA filters etc obviously had no significant difference in bacterial colony count with general OT s.
A Urine colony counts should always be done per isolate and not as a total colony count of all organisms.
RESULTS: Mean viable colony count for each test organisms was determined against each time interval for different dilutions of disinfectants and statistically analyzed.
Also, when reporting culture results, the hospital lab will report a colony count and specific definition of each colony type, (e.
7) It was reported that a positive LE and nitrite had a sensitivity of 84 percent and specificity of 98 percent when the colony count was greater than [10.
001 mL loop to do the streaking, the colony count is calculated as: 50 (colonies) x 1,000 (the dilution factor) = 50,000 CFU/mL.