6/13/13 Flashcards
In general, what is the best initial test for dysphagia?
barium swallow
If a pt presents w. dysphagia to solids an/or other clear signs of esophageal obstruction, what is the best initial test?
endoscopy
What congenital malformation of the brainstem is associated with myelomeningocele?
Chiari type II
What is the Chiari type II malformation?
elongation of the 4th ventricle, displacement of the cerebellar vermis, pons, and medulla into the cervical canal, and obstructive hydrocephalus
Congential malformation in which the 4th ventricle extends innto the posterior fossa, and , usu., the posterior cerebellar vermis is missing?
Dandy-Walker malformation
Presence of cysts in the brain at birth.
porencephaly
Numerous patchy, non-enhancing hypodensities on CT scan of the brain of an AIDS pt w/ various different focal neuor signs indicates what?
progressive multifocal leukoencephalopathy (JC virus)
What causes psychomotore retardation, depression, and dementia in HIV pts w/ a confluent, symmetric appearrance on head CT?
HIV encephalopathy (direct infection of neurons w/ HIV)
_______ is a somatoform disorder in which symptoms are produced by pts in order to assume the “sick” role.
Factitious disorder
_______ is the experience of one or more neurologic Sx(or Sx of another general medical condition) in response to a psychologic stressor.
Conversion disorder
What is the most sensitive test for subarachnoid hemorrhage?
lumbar puncture (w/ spectophotometry)
Which 2 tendons are inflamed in de Quervain’s tenosynovitis?
abductor pollicis longus and extensor pollicis brevis
What causes a prominent U wave on EKG?
hypokalemia
A moderately dehydrated infant has a serum Na+ of 161 mEq. How much fluid should she be given?
7 L (161-140=21 --> 21/3 = 7)
What type of IV fluid should be given to a dehydrated, hyponatremic infant?
D5W
