The patient's BUN is within normal range (5-20 mg/dL) while the creatinine is about five times the upper normal range (0.6-1.2 mg/dL). Gross elevations in creatinine are almost always accompanied by elevations in BUN when there is kidney impairment. Either the BUN or creatinine value in this case is incorrect. Both tests should be repeated.
A patient's BUN value is 15 mg/dl and his creatinine is 5 mg/dl. If this patient is not undergoing dialysis, what conclusion would you draw from these results?

A laboratory scientist is preparing a chemical reagent for testing and accidentally spills the chemical on the counter. How is this contamination taken care of?

Convert the following temperature from Celsius to Fahrenheit
-4 degrees C

Which specimen should be collected last?
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This is the total magnification of the high dry objective lens.