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CERTIFIED-STROKE-REHABILITATION-SPECIALIST-
CSRS-2026 EXAM COMPLETE (149) CURRENT
TESTING QUESTIONS AND CORRECT ANSWERS
WITH DETAILED RATIONALES.
CSRS
Prepare for the Certified Stroke Rehabilitation Specialist (CSRS) Exam with practice
questions covering stroke recovery, neurological assessment, rehabilitation
strategies, patient mobility, cognitive and communication impairments,
interdisciplinary care, and evidence-based treatment approaches. This study guide
helps reinforce essential stroke rehabilitation concepts and supports effective
certification exam preparation. Designed to improve clinical decision-making skills
and boost confidence in providing comprehensive stroke recovery care. Suitable for
rehabilitation professionals, nurses, therapists, and healthcare providers involved in
stroke care.
MULTIPLE CHOICE.
Section 1: Stroke Pathophysiology and Risk Factors (Questions 1-15)
1 Which of the following best describes the primary mechanism by which atrial fibrillation increases the risk of
ischemic stroke?
A) Increased shear stress on the vessel wall leading to endothelial disruption
B) Formation of platelet-rich thrombi in the left atrial appendage due to stasis
C) Embolization of fibrin-rich clots from the left atrium to the cerebral circulation
D) Paradoxical embolism through a patent foramen ovale
Answer: C
Rationale: Atrial fibrillation causes loss of coordinated atrial contraction, leading to blood stasis in the left atrium,
particularly the appendage, promoting formation of fibrin-rich red thrombi (not platelet-rich white thrombi). These
embolize to the brain, causing cardioembolic stroke. Option B describes platelet-rich thrombi typical of arterial
high-shear environments, not the low-flow stasis of AF.
2 A patient with a history of transient ischemic attack (TIA) is found to have a 70% stenosis of the internal carotid
artery on the ipsilateral side. Which pathophysiological mechanism most likely contributes to the TIA?
A) Hemodynamic insufficiency distal to the stenosis
B) Artery-to-artery embolism from the stenotic plaque
C) In situ thrombosis of the stenotic segment
D) Vasospasm of the post-stenotic segment
Answer: B
Rationale: In symptomatic carotid stenosis, the most common mechanism for TIA/stroke is artery -to-artery
embolism of platelet aggregates or cholesterol debris from the unstable plaque. Hemodynamic insufficiency (A) is
less common and usually associated with severe stenosis >90% or impaired collateral flow. In situ thrombosis (C)
typically causes complete occlusion rather than transient symptoms.
3 Which of the following genetic polymorphisms is most strongly associated with an increased risk of
intracerebral hemorrhage in the setting of hypertension?
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A ) A P O E µ 4 a l l e l e
B) MTHFR C677T variant
C) Factor V Leiden mutation
D) Prothrombin G20210A mutation
Answer: A
Rationale: T h e A P O E µ 4 a l l e l e i s a s s o c i a t e d
intracerebral hemorrhage, especially in hypertensive patients. MTHFR C677T (B) is linked to
hyperhomocysteinemia and ischemic stroke but not ICH. Factor V Leiden (C) and prothrombin mutation (D) are
thrombophilic and increase risk of venous thrombosis, not hemorrhage.
4 A researcher is studying the role of oxidative stress in ischemic stroke penumbra. Which molecular event is
most directly responsible for neuronal death in the penumbra during the first few hours after onset?
A) Excitotoxicity due to excessive glutamate release
, Page 3 of 45
B) Apoptosis triggered by caspase-3 activation
C) Necrosis from ATP depletion
D) Autophagy induced by mTOR inhibition
Answer: A
Rationale: In the ischemic penumbra, reduced blood flow leads to energy failure, impairing glutamate reuptake,
causing excessive extracellular glutamate. This overstimulates NMDA receptors, leading to calcium influx and
excitotoxic neuronal death within minutes to hours. Apoptosis (B) occurs later (hours to days) in the penumbra.
Necrosis (C) is predominant in the core. Autophagy (D) is a survival mechanism, not primary death pathway early
on.
5 Which of the following risk factors is most strongly associated with lacunar stroke, as opposed to other ischemic
stroke subtypes?
A) Atrial fibrillation
B) Carotid artery stenosis
C) Chronic hypertension
D) Patent foramen ovale
Answer: C
Rationale: Lacunar strokes are small subcortical infarcts caused by intrinsic disease of small penetrating arteries,
most commonly lipohyalinosis or microatheroma due to chronic hypertension. Atrial fibrillation (A) and carotid
stenosis (B) cause large artery or cardioembolic strokes. PFO (D) is associated with cryptogenic stroke, not lacunar.
6 A 55-year-old patient with no prior medical history presents with sudden severe headache and loss of
consciousness. CT shows subarachnoid hemorrhage. Which of the following is the most likely underlying
vascular abnormality?
A) Arteriovenous malformation
B) Saccular aneurysm at the circle of Willis
C) Cavernous malformation
D) Dural arteriovenous fistula
Answer: B
Rationale: Non-traumatic subarachnoid hemorrhage is most commonly (85%) due to rupture of a saccular (berry)
aneurysm at the circle of Willis. AVMs (A) more often cause intraparenchymal hemorrhage. Cavernous
malformations (C) typically cause seizures or focal deficits, not SAH. Dural AVFs (D) are less common and usually
present with pulsatile tinnitus or hemorrhage but not typical SAH.
7 Which of the following statements about the role of inflammatory markers in stroke pathophysiology is most
accurate?
A) C-reactive protein is a specific predictor of stroke subtype
B) Elevated interleukin-6 levels are associated with worse functional outcome after ischemic stroke
C) Tumor necrosis factor-alpha promotes neuroprotection in the acute phase
D) Matrix metalloproteinase-9 levels are inversely correlated with hemorrhagic transformation risk
Answer: B
Rationale: IL-6, a pro-inflammatory cytokine, is consistently associated with larger infarct size, neurological
deterioration, and poor functional outcome after ischemic stroke. CRP (A) is a non-specific marker and does not
predict subtype. TNF-alpha (C) is generally pro-inflammatory and detrimental. MMP-9 (D) is directly correlated
with hemorrhagic transformation risk, not inversely.
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8 In the context of primary stroke prevention, which of the following interventions has been shown to reduce the
risk of first ischemic stroke in patients with asymptomatic carotid stenosis >70%?
A) Carotid endarterectomy with perioperative risk <3%
B) Aggressive medical management alone
C) Carotid artery stenting with embolic protection
D) Warfarin therapy to INR 2-3
Answer: A
Rationale: For asymptomatic carotid stenosis >70%, CEA reduces stroke risk when perioperative
morbidity/mortality is <3%, per ACAS and ACST trials. Aggressive medical therapy (B) is now considered
first-line for most asymptomatic patients, but CEA is still an option in selected patients with high-risk plaque
features. Stenting (C) is not superior and has higher peri-procedural risk. Warfarin (D) is not indicated for
asymptomatic carotid disease.
9 Which of the following best describes the role of the blood-brain barrier (BBB) in the pathophysiology of
cerebral edema after large hemispheric infarction?
A) Early BBB disruption leads to cytotoxic edema within the first 6 hours
B) Vasogenic edema results from tight junction breakdown and protein extravasation
C) Aquaporin-4 upregulation reduces edema by facilitating water efflux
D) BBB integrity is maintained for the first 24 hours after stroke onset
Answer: B
Rationale: Vasogenic edema occurs due to BBB breakdown, allowing serum proteins and water to enter the
extracellular space. Cytotoxic edema (A) is intracellular swelling from energy failure, not primarily due to BBB
disruption. Aquaporin-4 (C) actually facilitates water influx into astrocytes, worsening edema. BBB breakdown
typically begins within hours, not 24 hours (D).
10 A patient with a history of cryptogenic stroke is found to have a patent foramen ovale (PFO) with a large shunt
and an atrial septal aneurysm. Which of the following mechanisms best explains the increased stroke risk in
this setting?
A) In situ thrombosis within the PFO tunnel
B) Paradoxical embolism from a deep vein thrombosis
C) Arrhythmogenic potential of the atrial septal aneurysm
D) Hypercoagulable state induced by the PFO
Answer: B
Rationale: PFO allows paradoxical embolism: a venous thrombus crosses from the right to left atrium, bypassing the
pulmonary circulation, and embolizes to the brain. In situ thrombosis (A) is rare. Atrial septal aneurysm (C) may
increase risk by promoting thrombus formation or shunt, but the primary mechanism is paradoxical embolism. PFO
itself does not induce a hypercoagulable state (D).
11 A patient with a history of atrial fibrillation develops acute neurological deficits. Diffusion -weighted MRI
reveals multiple small hyperintense lesions in both hemispheres and the cerebellum. Which pathophysiological
mechanism most likely explains the distribution of these infarcts?
A) Cardioembolism from left atrial thrombus
B) Hemodynamic watershed infarction due to hypotension
C) Artery-to-artery embolism from carotid plaque
D) Cerebral small vessel disease with lacunar infarcts
Answer: A
CERTIFIED-STROKE-REHABILITATION-SPECIALIST-
CSRS-2026 EXAM COMPLETE (149) CURRENT
TESTING QUESTIONS AND CORRECT ANSWERS
WITH DETAILED RATIONALES.
CSRS
Prepare for the Certified Stroke Rehabilitation Specialist (CSRS) Exam with practice
questions covering stroke recovery, neurological assessment, rehabilitation
strategies, patient mobility, cognitive and communication impairments,
interdisciplinary care, and evidence-based treatment approaches. This study guide
helps reinforce essential stroke rehabilitation concepts and supports effective
certification exam preparation. Designed to improve clinical decision-making skills
and boost confidence in providing comprehensive stroke recovery care. Suitable for
rehabilitation professionals, nurses, therapists, and healthcare providers involved in
stroke care.
MULTIPLE CHOICE.
Section 1: Stroke Pathophysiology and Risk Factors (Questions 1-15)
1 Which of the following best describes the primary mechanism by which atrial fibrillation increases the risk of
ischemic stroke?
A) Increased shear stress on the vessel wall leading to endothelial disruption
B) Formation of platelet-rich thrombi in the left atrial appendage due to stasis
C) Embolization of fibrin-rich clots from the left atrium to the cerebral circulation
D) Paradoxical embolism through a patent foramen ovale
Answer: C
Rationale: Atrial fibrillation causes loss of coordinated atrial contraction, leading to blood stasis in the left atrium,
particularly the appendage, promoting formation of fibrin-rich red thrombi (not platelet-rich white thrombi). These
embolize to the brain, causing cardioembolic stroke. Option B describes platelet-rich thrombi typical of arterial
high-shear environments, not the low-flow stasis of AF.
2 A patient with a history of transient ischemic attack (TIA) is found to have a 70% stenosis of the internal carotid
artery on the ipsilateral side. Which pathophysiological mechanism most likely contributes to the TIA?
A) Hemodynamic insufficiency distal to the stenosis
B) Artery-to-artery embolism from the stenotic plaque
C) In situ thrombosis of the stenotic segment
D) Vasospasm of the post-stenotic segment
Answer: B
Rationale: In symptomatic carotid stenosis, the most common mechanism for TIA/stroke is artery -to-artery
embolism of platelet aggregates or cholesterol debris from the unstable plaque. Hemodynamic insufficiency (A) is
less common and usually associated with severe stenosis >90% or impaired collateral flow. In situ thrombosis (C)
typically causes complete occlusion rather than transient symptoms.
3 Which of the following genetic polymorphisms is most strongly associated with an increased risk of
intracerebral hemorrhage in the setting of hypertension?
, Page 2 of 45
A ) A P O E µ 4 a l l e l e
B) MTHFR C677T variant
C) Factor V Leiden mutation
D) Prothrombin G20210A mutation
Answer: A
Rationale: T h e A P O E µ 4 a l l e l e i s a s s o c i a t e d
intracerebral hemorrhage, especially in hypertensive patients. MTHFR C677T (B) is linked to
hyperhomocysteinemia and ischemic stroke but not ICH. Factor V Leiden (C) and prothrombin mutation (D) are
thrombophilic and increase risk of venous thrombosis, not hemorrhage.
4 A researcher is studying the role of oxidative stress in ischemic stroke penumbra. Which molecular event is
most directly responsible for neuronal death in the penumbra during the first few hours after onset?
A) Excitotoxicity due to excessive glutamate release
, Page 3 of 45
B) Apoptosis triggered by caspase-3 activation
C) Necrosis from ATP depletion
D) Autophagy induced by mTOR inhibition
Answer: A
Rationale: In the ischemic penumbra, reduced blood flow leads to energy failure, impairing glutamate reuptake,
causing excessive extracellular glutamate. This overstimulates NMDA receptors, leading to calcium influx and
excitotoxic neuronal death within minutes to hours. Apoptosis (B) occurs later (hours to days) in the penumbra.
Necrosis (C) is predominant in the core. Autophagy (D) is a survival mechanism, not primary death pathway early
on.
5 Which of the following risk factors is most strongly associated with lacunar stroke, as opposed to other ischemic
stroke subtypes?
A) Atrial fibrillation
B) Carotid artery stenosis
C) Chronic hypertension
D) Patent foramen ovale
Answer: C
Rationale: Lacunar strokes are small subcortical infarcts caused by intrinsic disease of small penetrating arteries,
most commonly lipohyalinosis or microatheroma due to chronic hypertension. Atrial fibrillation (A) and carotid
stenosis (B) cause large artery or cardioembolic strokes. PFO (D) is associated with cryptogenic stroke, not lacunar.
6 A 55-year-old patient with no prior medical history presents with sudden severe headache and loss of
consciousness. CT shows subarachnoid hemorrhage. Which of the following is the most likely underlying
vascular abnormality?
A) Arteriovenous malformation
B) Saccular aneurysm at the circle of Willis
C) Cavernous malformation
D) Dural arteriovenous fistula
Answer: B
Rationale: Non-traumatic subarachnoid hemorrhage is most commonly (85%) due to rupture of a saccular (berry)
aneurysm at the circle of Willis. AVMs (A) more often cause intraparenchymal hemorrhage. Cavernous
malformations (C) typically cause seizures or focal deficits, not SAH. Dural AVFs (D) are less common and usually
present with pulsatile tinnitus or hemorrhage but not typical SAH.
7 Which of the following statements about the role of inflammatory markers in stroke pathophysiology is most
accurate?
A) C-reactive protein is a specific predictor of stroke subtype
B) Elevated interleukin-6 levels are associated with worse functional outcome after ischemic stroke
C) Tumor necrosis factor-alpha promotes neuroprotection in the acute phase
D) Matrix metalloproteinase-9 levels are inversely correlated with hemorrhagic transformation risk
Answer: B
Rationale: IL-6, a pro-inflammatory cytokine, is consistently associated with larger infarct size, neurological
deterioration, and poor functional outcome after ischemic stroke. CRP (A) is a non-specific marker and does not
predict subtype. TNF-alpha (C) is generally pro-inflammatory and detrimental. MMP-9 (D) is directly correlated
with hemorrhagic transformation risk, not inversely.
, Page 4 of 45
8 In the context of primary stroke prevention, which of the following interventions has been shown to reduce the
risk of first ischemic stroke in patients with asymptomatic carotid stenosis >70%?
A) Carotid endarterectomy with perioperative risk <3%
B) Aggressive medical management alone
C) Carotid artery stenting with embolic protection
D) Warfarin therapy to INR 2-3
Answer: A
Rationale: For asymptomatic carotid stenosis >70%, CEA reduces stroke risk when perioperative
morbidity/mortality is <3%, per ACAS and ACST trials. Aggressive medical therapy (B) is now considered
first-line for most asymptomatic patients, but CEA is still an option in selected patients with high-risk plaque
features. Stenting (C) is not superior and has higher peri-procedural risk. Warfarin (D) is not indicated for
asymptomatic carotid disease.
9 Which of the following best describes the role of the blood-brain barrier (BBB) in the pathophysiology of
cerebral edema after large hemispheric infarction?
A) Early BBB disruption leads to cytotoxic edema within the first 6 hours
B) Vasogenic edema results from tight junction breakdown and protein extravasation
C) Aquaporin-4 upregulation reduces edema by facilitating water efflux
D) BBB integrity is maintained for the first 24 hours after stroke onset
Answer: B
Rationale: Vasogenic edema occurs due to BBB breakdown, allowing serum proteins and water to enter the
extracellular space. Cytotoxic edema (A) is intracellular swelling from energy failure, not primarily due to BBB
disruption. Aquaporin-4 (C) actually facilitates water influx into astrocytes, worsening edema. BBB breakdown
typically begins within hours, not 24 hours (D).
10 A patient with a history of cryptogenic stroke is found to have a patent foramen ovale (PFO) with a large shunt
and an atrial septal aneurysm. Which of the following mechanisms best explains the increased stroke risk in
this setting?
A) In situ thrombosis within the PFO tunnel
B) Paradoxical embolism from a deep vein thrombosis
C) Arrhythmogenic potential of the atrial septal aneurysm
D) Hypercoagulable state induced by the PFO
Answer: B
Rationale: PFO allows paradoxical embolism: a venous thrombus crosses from the right to left atrium, bypassing the
pulmonary circulation, and embolizes to the brain. In situ thrombosis (A) is rare. Atrial septal aneurysm (C) may
increase risk by promoting thrombus formation or shunt, but the primary mechanism is paradoxical embolism. PFO
itself does not induce a hypercoagulable state (D).
11 A patient with a history of atrial fibrillation develops acute neurological deficits. Diffusion -weighted MRI
reveals multiple small hyperintense lesions in both hemispheres and the cerebellum. Which pathophysiological
mechanism most likely explains the distribution of these infarcts?
A) Cardioembolism from left atrial thrombus
B) Hemodynamic watershed infarction due to hypotension
C) Artery-to-artery embolism from carotid plaque
D) Cerebral small vessel disease with lacunar infarcts
Answer: A
