The correct procedure for testing for ketones using a reagent strip includes ________.

A. using a strip from a bottle that was opened 7 months ago
B. testing a urine sample immediately after removing it from the refrigerator
C. using a strip you found sitting out on the counter
D. testing urine immediately or covering and refrigerating it until you can test it
E. running a control sample once a year to check for proper operation

Answer: D

Health Professions

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