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An unpreserved urine specimen left at room temperature overnight will have decreased:

Control data are evaluated:

When a critical value is obtained in the laboratory:

Testing of unknown specimens from an outside agency that provides validation of the quality patient results is:

Urea is a product of:

Obtaining the same result after testing the same specimen three times is called test:

When encountering a person experiencing an electrical shock, the first thing to do is:

Semiautomated analyzers for the chemical analysis of urine use the test principle of:

BONUS QUESTION: The most sterile specimen collected is a:

BONUS QUESTION: Which of the following is a good indicator of a contaminated urine?