A 35-year-old woman is evaluated for seizure disorder, mental obtundation, and personality change. Physical examination is normal. Fasting serum glucose is 44 mg/dL. Other serum values are normal. Subsequent investigations should include which of the following?
A. Oral glucose tolerance test
B. Determination of fasting insulin/glucose ratios
C. Assay of serum C-peptide levels
D. Determination of serum prolactin levels
Answer:B
A 35-year-old woman is evaluated for seizure disorder, mental obtundation, and personality change. Physical examination is normal. Fasting serum glucose is 44 mg/dL. Other serum values are normal. Subsequent investigations should include which of the following?
A. Oral glucose tolerance test B. Determination of fasting insulin/glucose ratios C. Assay of serum C-peptide levels D. Determination of serum prolactin levels