Fifty percent dextrose (D50) is indicated in all of the following situations, EXCEPT:

A. a semiconscious patient with a blood glucose of 50 mg/dL.
B. an unresponsive patient with no obtainable medical history.
C. an asymptomatic patient with a blood glucose of 60 mg/dL.

Answer: C. an asymptomatic patient with a blood glucose of 60 mg/dL.