A 47-year-old female presents with a history of recurrent
episodes of blurring of vision, confusion and drowsiness. These episodes come
on when the patient has been without food for several hours and they are
accompanied by feelings of anxiety hunger, sweating and palpitations.
She has started eating more frequently to try and prevent
these episodes occurring and she has gained a lot of weight.
In this patient which one of the following tests would
72 hour fast with measurement of glucose, insulin and C- peptide levels
Magnetic resonance imaging of the pancreas
tomogram of the pancreas
Endoscopic ultrasound of the pancreas
5 h oral glucose tolerance test