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Simple disposable method for quantitative cultures of urine.
Applied Microbiology
|March 1, 1970
Summary
A disposable urine culture kit accurately detects significant bacteriuria, with less than 1% error in over 3,500 specimens. This reliable screening tool aids in monitoring patients post-treatment.
Area of Science:
- Clinical Microbiology
- Diagnostic Technology
Background:
- Urinary tract infections (UTIs) are common, necessitating accurate diagnostic methods.
- Quantitative urine culture is the gold standard for diagnosing significant bacteriuria.
Purpose of the Study:
- To evaluate the accuracy and reliability of a disposable kit for quantitative urine culture.
- To determine the utility of the kit in detecting significant bacteriuria.
Main Methods:
- A disposable dip-inoculum kit was used for quantitative urine culture.
- 3,563 urine specimens were tested by five investigators.
- Results were compared with calibrated loop and dilution pour plate methods.
Main Results:
- The kit demonstrated a total error rate of less than 1%.
- It effectively differentiated significant bacteriuria (>100,000 bacteria/ml) from uninfected urine.
- A 10% variation was observed in complex cases with mixed flora compared to standard methods.
- Delayed incubation did not impact the kit's reliability.
Conclusions:
- The disposable kit is a highly accurate method for quantitative urine culture.
- Its primary utility lies in screening for bacteriuria and monitoring patients after therapy.
- The kit offers a reliable alternative for detecting significant bacteriuria in clinical settings.