Multiple choice questions for medical students and foreign medical graduates who are studying for USMLE Step 1.
Sunday, June 11, 2017
Repeated USMLE Questions Step 1- 157
A 73 year-old man with a history of senile enlarged prostate presents to the emergency room complaining of repeated falls. His wife admits that during the past 3 weeks he has had unsteady gait, urinary incontinence and memory disturbances. His medical, surgical and family histories are unremarkable. He has never smoked or taken any recreational drugs. He drinks alcohol socially. His laboratory tests are all normal. A CT scan of the head shows slightly enlarged ventricles and slightly compressed gyri.
What is the most likely diagnosis of this patient's condition?
A- Normal pressure hydrocephalus
B- Alzheimer's disease
C- Middle cerebral artery stroke
D- Anterior pituitary adenoma
E- Trauma to the head due to elderly abuse
This is a typical presentation of normal pressure hydrocephalus. It is characterized by unsteady gait, urinary incontinence and dementia.