If a urine culture was planted using a 0.001-mL loop and 75 colonies were observed,what is the colony-forming units per millimeter of urine (CFU/mL)?

Name: If a urine culture was planted using a 0.001-mL loop and 75 colonies were observed,what is the colony-forming units per millimeter of urine (CFU/mL)?
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Quizplus · Accepted Answer

A 0.001-mL calibrated loop has a dilution factor of 1000.Therefore,the number of colonies observed is multiplied by 1000 to give the final CFU/mL.In this case,75× 1000 = 75,000 CFU/mL.

If a Urine Culture Was Planted Using a 0