9.9.2013(syncope)

Question 1

define syncope

Answer 1

transient,self limited loss of consciousness due to global cerebral ischemia

Question 2

course of syncope

Answer 2

rapid onset
brief duration
spontaneous and complete recovery

Question 3

presyncope

Answer 3

dizziness
lightheadedness
fatigue
auditory or visual disturbance

Question 4

three broad etiological catagories of syncope

Answer 4

reflex or neurally mediated syncope
orthostatic syncope
cardiac syncope

Question 5

most common type of syncope

Answer 5

reflex

Question 6

Standing results in pooling of _________ ml of blood in lower limbs and splanchnic circulation

Answer 6

500-1000ml

Question 7

type of headache in orthostatic hypotension

Answer 7

coat hanger headache

Question 8

heart rates above which ventricular tachyarrythmias cause syncope

Answer 8

200

Question 9

stoke adams attack

Answer 9

syncope due to asystole or bradycardia

Question 10

cause of syncope in tachycardia bradycardia syndrome

Answer 10

prolonged pause following tachycardia

Question 11

Indications for carotid sinus massage

Answer 11

recurrent syncope of unknown etiology in pts over 50 yrs

Question 12

contraindications due to carotid sinus massage

Answer 12

bruit,plaque,stenosis

Question 13

blood pressure during asystole

Answer 13

10-20mm Hg

Question 14

Diff btw syncope due to ventricular tachycardia and stoke adams attack

Answer 14

LOC occurs later(20-120s) in ventricular tachycardias

Question 15

first sign of an impending vasovagal faint

Answer 15

facial pallor

Question 16

cerebral ischemic anoxia reserve time

Answer 16

7s

Question 17

Most consistent ocular motor sign accompanying syncope

Answer 17

Upward turning of eyes which may be preceded by downbeat nystagmus

Question 18

post ictal flushing after syncope indicates

Answer 18

sudden onset of syncope followed by rapid overshoot of pressure

Question 19

Cause of persistence of pallor and oliguria after a vasovagal attack

Answer 19

vasopressin release

Question 20

retrograde amnesia after vasovagal faint is common in

Answer 20

elderly

Question 21

diff btw epileptic and psychogenic seizures

Answer 21

eyes are open during epileptic seizures

Question 22

condition where syncope is caused by epilepsy

Answer 22

temporal lobe seizures causing arrythmias