6/13/13 Flashcards Preview

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Flashcards in 6/13/13 Deck (20):
1

In general, what is the best initial test for dysphagia?

barium swallow

2

If a pt presents w. dysphagia to solids an/or other clear signs of esophageal obstruction, what is the best initial test?

endoscopy

3

What congenital malformation of the brainstem is associated with myelomeningocele?

Chiari type II

4

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

5

Congential malformation in which the 4th ventricle extends innto the posterior fossa, and , usu., the posterior cerebellar vermis is missing?

Dandy-Walker malformation

6

Presence of cysts in the brain at birth.

porencephaly

7

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)

8

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)

9

_______ is a somatoform disorder in which symptoms are produced by pts in order to assume the "sick" role.

Factitious disorder

10

_______ is the experience of one or more neurologic Sx(or Sx of another general medical condition) in response to a psychologic stressor.

Conversion disorder

11

What is the most sensitive test for subarachnoid hemorrhage?

lumbar puncture (w/ spectophotometry)

12

Which 2 tendons are inflamed in de Quervain's tenosynovitis?

abductor pollicis longus and extensor pollicis brevis

13

What causes a prominent U wave on EKG?

hypokalemia

14

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)

15

What type of IV fluid should be given to a dehydrated, hyponatremic infant?

D5W

16

How should IV rehydration be administered to a severely dehydrated infant?

Bolus of 20 mL/kg of isotonic saline or Ringer's lactate

17

What is the use of amitryptaline in migraine?

prophylaxis

18

What is the use of propranolol in migraine?

prophylaxis

19

What metabolizes sildenafil?

CYP-450

20

What precaution should be taken when a pt is taking both sildenafil and an alpha-blocker?

take at least 4 hrs apart