Colorado CNA Practice Exam

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All of the following are examples of urine specimens EXCEPT:

Catheter specimen
Random specimen
24-hour specimen
Micro specimen

The correct answer is: Micro specimen

The correct reasoning for choosing Micro specimen as the exception lies in the definition and common use of urine specimens. In medical settings, urine specimens are typically classified based on the method of collection and the specific diagnostic purpose they serve. A catheter specimen involves collecting urine directly from the bladder via a catheter, ensuring that the sample is free from contamination by bacteria present in the urethra. A random specimen is any urine sample collected at any time, which can be useful for general analysis. A 24-hour specimen is collected over a 24-hour period to measure substances in urine, providing valuable information for various medical assessments. On the other hand, a micro specimen is not typically recognized as a standard category of urine specimen collection. While "micro" may describe small samples or certain specific tests, it does not represent a distinct or widely accepted method of collecting urine like the other examples provided. This distinction highlights why Micro specimen does not fit within the recognized types of urine specimens commonly utilized in clinical practice.