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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Does Urine Test Showing Heavy Growth Of Mixed Skin Flora And Coliforms Mean?

I had a Urine test done for UTI and came back with reulsts of an infection and i used antibiotics for 2 weeks and now repeated the test and the results came back with Heavy growth of mixed skin flora and coliforms. I am 20 years old, 80kgs and 173cms tall.
Mon, 23 Jan 2017
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General & Family Physician,  's  Response
Hi & Welcome.

Incomplete data like any urinary symptoms, medical illness such as diabetes, or urinary catheter, etc??

It is suggestive of contaminated urine sample.

Typically, the presence of a single type of bacteria growing at high colony counts is considered a positive urine culture.

Urine cultures that contain more than one organism are usually considered contaminated. If the skin and genital area were not cleaned well prior to collecting the sample, the urine culture may grow three or more different types of bacteria and is assumed to be contaminated. It could also be due to contaminated bottle, contamination by lab technicians.

However, heavy growth often represents true mixed infection and should therefore be completely evaluated.

I advice you to collect the mid-stream clean catch urine sample for better analysis.

Hope this will help.
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What Does Urine Test Showing Heavy Growth Of Mixed Skin Flora And Coliforms Mean?

Hi & Welcome. Incomplete data like any urinary symptoms, medical illness such as diabetes, or urinary catheter, etc?? It is suggestive of contaminated urine sample. Typically, the presence of a single type of bacteria growing at high colony counts is considered a positive urine culture. Urine cultures that contain more than one organism are usually considered contaminated. If the skin and genital area were not cleaned well prior to collecting the sample, the urine culture may grow three or more different types of bacteria and is assumed to be contaminated. It could also be due to contaminated bottle, contamination by lab technicians. However, heavy growth often represents true mixed infection and should therefore be completely evaluated. I advice you to collect the mid-stream clean catch urine sample for better analysis. Hope this will help.