module 3 Flashcards
(50 cards)
The rTPA exclusion criteria are the ff, except:
A Pretreatment SBP>185, DBP>110
-B Major surgery at least 6 days previously
C. age <18
D. Current oral anticoagulation PT INR>1.7
B
Management of ICP in acute stroke
Mannitol: 0.5 - 2 g/kg/dose
T or F: Patients who are potential candidates for rtPA therapy but who have persistent elevations in SBP >185 mmHg or DBP > 100 mmHg may be treated with large doses of IV anti-hypertensive medication (apresaline/beta blockers)
F
A stuporous and moderately hemiparetic px has a Hunt and Hess grade for subacute hemorrhage of
4
BP value in permissive hypertension in px w/ ischemic stroke
160/100
An ischemic penumbra will have the ff, except:
- Increase in K+ levels
- marginal perfusion
- Depleted ATP
- increase in creatinine phosphate
D
Reduction of cerebral blood flow (CBF) below 10-12 ml/100g per minute leads to
Cerebral infarction
T or F: If there is involvement of lingual gyrus or the visual cortex of both sides, will you still have an intact pupillary light reflex
T
This structure is involved when the eyes look towards the side of the weakness w/ the lesion on the other side; also the final nuclei for gaze
paramedian pontine reticular formation
T or F: Horner syndrome can be seen in both posterior and anterior circulation stroke
F
This midbrain stroke syndrome presents with CN III palsy ipsilaterally and hemiplegia contralaterally
Weber Syndrome
This clinical term describes the occurrence of transient monocular or binocular visual loss due to retinal artery ischemia
Amaurosis fugax
This condition is characterized by a cluster of neurological abnormalities arising from the partial or complete severing or lesioning of the corpus callosum, the bundle of nerves that connects the right and left hemispheres of the brain.
Split-brain syndrome (callosal disconnection syndrome)
T or F: Embolization before microsurgical resection is thought to increase the complication rates associated with surgical excision of AVMs in eloquent brain areas
F
Definitive study for assessment of intracranial vascular malformations
Cerebral angiography
The ff are risk factors of ischemic stroke in children
- RHF
- TOF
- child abuse
- meningitis
AOTA
These are factors associated with successful AVM radiosurgery except:
- Mean nidus diameter of 2 cm or less
- Patient 12 years old or older
- Nidus volume of 3.8 cm or less
- Maximum diameter of the nidus less than 3 cm
B
This is a type of CNS vascular formation without an apparent arterial component and consists of a myriad of small tapering veins arranged in a radial fashion in the deep white matter.
Venous angioma
Pedia px w/ unprovoked cerebral sinovenous thrombosis has a therapy duration of
6 – 12 months with a target INR of 2 – 3
Current recommendation for early aspirin therapy for most px w/ TIA
160 to 325 mg/day
W/c drugs are the cornerstone of pill therapy in the secondary prevention of stroke
Antihypertensives and statin
T or F: warfarin is indicated for embolic stroke px w/ valvular arrhythmia
T
IV of choice for IV repletion and maintenance fluid therapy
Isotonic saline without dextrose (NSS)
As part of acute stroke evaluation, px with suspected stroke should have the ff studies urgently except:
- CBC w/ platelet
- O2 sat
- non-constrast CT
- finger stick blood glucose
A