NSG530 / NSG 530 EXAM 3 | ADVANCED PATHOPHYSIOLOGY REVIEW GUIDE -
NSG530 / NSG 530 EXAM 3 (LATEST ):
ADVANCED PATHOPHYSIOLOGY
REVIEW GUIDE WITH QUESTIONS AND VERIFIED ANSWERS | 100%
CORRECT - WILKES
Wilkes University | Department of Graduate Nursing | Master of Science in Nursing
Aligned with the Wilkes University NSG 530 Course Syllabus, the AACN Essentials of Master's Education in Nursing, and
Advanced Pathophysiology Competencies ( Edition)
100 Multiple-Choice Questions | 7 Content Sections | Answers and Rationales Included
Section 1: Neurological Pathophysiology Questions 1 - 20
Q1: A 68-year-old right-handed man presents with sudden onset of right facial droop, right arm
weakness, and expressive (Broca) aphasia that began 90 minutes ago. Non-contrast CT is
negative for hemorrhage. Which pathophysiologic process best explains this presentation?
A. Occlusion of the left middle cerebral artery, producing focal ischemia, cytotoxic edema,
and dysfunction of the dominant language hemisphere [CORRECT]
B. Occlusion of the right middle cerebral artery with contralateral neglect and left
hemiparesis
C. Intraparenchymal hemorrhage into the left basal ganglia from rupture of lenticulostriate
vessels
D. Transient ischemic attack involving the left posterior cerebral artery territory
Correct Answer: A
Rationale: Right-sided face and arm weakness with expressive aphasia localizes to the left middle cerebral
artery (MCA) territory, which supplies the dominant frontal motor cortex and Broca area; arterial occlusion
produces ischemia, failure of the Na+/K+ ATPase pump, and cytotoxic edema, consistent with NSG 530
stroke pathophysiology. Option B is wrong because the deficits are right-sided and neglect localizes to the
nondominant (right) hemisphere. Option C is excluded by the negative CT for hemorrhage and absence of
headache or depressed consciousness. Option D is wrong because a TIA would have fully resolved and the
posterior circulation affects the occipital lobe, cerebellum, and brainstem rather than language and arm motor
areas.
Wilkes University | Department of Graduate Nursing | Advanced Pathophysiology (NSG 530) 1
,NSG530 / NSG 530 EXAM 3 | ADVANCED PATHOPHYSIOLOGY REVIEW GUIDE -
Q2: A 72-year-old woman presents 3 hours after onset of left-sided weakness. Her non-contrast
head CT is normal. Which diagnostic study is MOST sensitive for detecting early cerebral
ischemia at this stage?
A. Repeat non-contrast CT in 6 hours, because infarct edema requires at least 12 hours to
appear
B. Diffusion-weighted MRI (DWI), which detects restricted water diffusion from cytotoxic
edema within minutes of arterial occlusion [CORRECT]
C. Lumbar puncture with CSF analysis for elevated protein and red blood cells
D. Electroencephalography to identify focal slowing in the ischemic hemisphere
Correct Answer: B
Rationale: DWI detects restricted diffusion caused by cytotoxic edema (cell swelling from ATP failure)
within minutes of ischemic onset and is the gold standard for early infarct detection, a key diagnostic
correlation in NSG 530. Non-contrast CT is insensitive in the first several hours and is used mainly to exclude
hemorrhage before thrombolysis, making option A incorrect. Lumbar puncture (C) is not used to diagnose
acute ischemia and risks herniation with mass lesions. EEG (D) shows changes in seizures and
encephalopathies but lacks sensitivity or specificity for acute infarction.
Q3: Which statement MOST accurately describes the pathophysiology of a transient ischemic
attack (TIA)?
A. A permanent infarct smaller than 1 cm that produces symptoms lasting less than 24
hours
B. A hemorrhagic event confined to the subarachnoid space that resolves spontaneously
C. A transient episode of focal neurologic dysfunction caused by focal brain ischemia
without acute infarction of tissue [CORRECT]
D. A hypoperfusion state caused by systemic hypotension that produces global rather than
focal symptoms
Correct Answer: C
Rationale: The modern tissue-based definition endorsed in NSG 530 characterizes TIA as transient focal
ischemia WITHOUT infarction; symptoms typically resolve within 1 hour and always within 24 hours, with
no permanent injury on imaging. Option A is incorrect because any tissue infarction, regardless of size,
reclassifies the event as a stroke. Option B describes subarachnoid hemorrhage, not TIA. Option D describes
global hypoperfusion from systemic hypotension (as in syncope), which is not a focal ischemic event.
Wilkes University | Department of Graduate Nursing | Advanced Pathophysiology (NSG 530) 2
,NSG530 / NSG 530 EXAM 3 | ADVANCED PATHOPHYSIOLOGY REVIEW GUIDE -
Q4: A 78-year-old man with poorly controlled hypertension suddenly develops a severe
headache, right hemiparesis, and lethargy. Imaging shows an acute hemorrhage in the left basal
ganglia. Which mechanism MOST likely explains this hemorrhagic stroke?
A. Rupture of a saccular (berry) aneurysm at the circle of Willis
B. Embolic occlusion of a penetrating artery followed by hemorrhagic transformation
C. Rupture of an arteriovenous malformation in the deep basal ganglia
D. Rupture of Charcot-Bouchard microaneurysms in small penetrating lenticulostriate
arteries damaged by chronic hypertension [CORRECT]
Correct Answer: D
Rationale: Chronic hypertension causes lipohyalinosis and Charcot-Bouchard microaneurysm formation in
deep penetrating vessels, most commonly the lenticulostriate arteries supplying the basal ganglia, thalamus,
pons, and cerebellum, which is the classic mechanism emphasized in NSG 530 hypertensive intracerebral
hemorrhage. Option A produces subarachnoid hemorrhage with thunderclap headache, not an
intraparenchymal basal ganglia clot. Option B is illogical because the initial event here was hemorrhage, not
infarction. Option C, an AVM rupture, is a congenital vascular anomaly typically seen in younger patients.
Q5: A nurse is explaining why intracranial pressure rises rapidly after traumatic brain injury.
Which statement BEST reflects the Monro-Kellie doctrine?
A. Because the skull is a rigid, closed compartment, an increase in any component (brain
tissue, blood, or CSF) must be offset by a reciprocal decrease in another component, or
intracranial pressure will rise [CORRECT]
B. Cerebrospinal fluid production ceases when intracranial pressure exceeds 20 mm Hg,
allowing the ventricles to decompress
C. Brain tissue can be compressed to one-third of its normal volume before intracranial
pressure begins to rise
D. Intracranial pressure remains constant until the dura mater is physically disrupted by
fracture
Correct Answer: A
Rationale: The Monro-Kellie doctrine states that the total volume of brain (approximately 80 percent), blood
(10 percent), and CSF (10 percent) within the rigid skull is constant; compensation occurs by displacing CSF
into the spinal canal and shunting venous blood out, after which ICP rises exponentially, a foundational
concept in NSG 530. Option B is false because CSF production continues while absorption is impaired.
Option C reverses the physiology: intracranial compliance is exhausted after only about 100 mL of added
volume. Option D is false because ICP rises with any expanding intracranial volume, whether or not a fracture
exists.
Wilkes University | Department of Graduate Nursing | Advanced Pathophysiology (NSG 530) 3
, NSG530 / NSG 530 EXAM 3 | ADVANCED PATHOPHYSIOLOGY REVIEW GUIDE -
Q6: Which definition of status epilepticus is used in current evidence-based practice?
A. Any seizure that occurs while the patient is taking two or more antiepileptic drugs
B. A seizure lasting 5 or more minutes, or two or more seizures without full return to
baseline consciousness between them [CORRECT]
C. Three consecutive tonic-clonic seizures occurring within a single 24-hour period
D. A seizure accompanied by postictal psychosis lasting longer than 30 minutes
Correct Answer: B
Rationale: Status epilepticus is operationally defined as a single seizure of 5 minutes or longer, or recurrent
seizures without recovery between episodes; this 5-minute operational threshold reflects the point at which
GABA receptor internalization and pharmacoresistance begin, a mechanism discussed in NSG 530. Option A
describes drug-refractory epilepsy, not status epilepticus. Option C reflects the older definition of some
seizure disorders but not status epilepticus. Option D describes a psychiatric postictal phenomenon and does
not define the emergency.
Q7: Which mechanism BEST explains the neuronal hypersynchrony that underlies seizure
activity?
A. Excess inhibitory input through glutamate-activated NMDA receptors in the cerebral
cortex
B. Hyperpolarization of postsynaptic neurons secondary to unregulated chloride influx
C. An imbalance in which excitatory glutamatergic activity overwhelms inhibitory
GABAergic control, producing synchronized, self-sustaining neuronal discharge
[CORRECT]
D. Decreased extracellular potassium that stabilizes neuronal membranes below firing
threshold
Correct Answer: C
Rationale: Seizures arise when excitatory glutamate-mediated signaling (NMDA and AMPA receptors)
exceeds inhibitory GABA-mediated control, producing paroxysmal depolarization shifts and
hypersynchronous discharge across neuronal networks, the core excitatory-inhibitory imbalance taught in
NSG 530. Option A is wrong because glutamate is excitatory, not inhibitory. Option B describes enhanced
inhibition, the opposite of seizures. Option D is wrong because rising, not falling, extracellular potassium
depolarizes neurons and lowers the seizure threshold.
Wilkes University | Department of Graduate Nursing | Advanced Pathophysiology (NSG 530) 4
NSG530 / NSG 530 EXAM 3 (LATEST ):
ADVANCED PATHOPHYSIOLOGY
REVIEW GUIDE WITH QUESTIONS AND VERIFIED ANSWERS | 100%
CORRECT - WILKES
Wilkes University | Department of Graduate Nursing | Master of Science in Nursing
Aligned with the Wilkes University NSG 530 Course Syllabus, the AACN Essentials of Master's Education in Nursing, and
Advanced Pathophysiology Competencies ( Edition)
100 Multiple-Choice Questions | 7 Content Sections | Answers and Rationales Included
Section 1: Neurological Pathophysiology Questions 1 - 20
Q1: A 68-year-old right-handed man presents with sudden onset of right facial droop, right arm
weakness, and expressive (Broca) aphasia that began 90 minutes ago. Non-contrast CT is
negative for hemorrhage. Which pathophysiologic process best explains this presentation?
A. Occlusion of the left middle cerebral artery, producing focal ischemia, cytotoxic edema,
and dysfunction of the dominant language hemisphere [CORRECT]
B. Occlusion of the right middle cerebral artery with contralateral neglect and left
hemiparesis
C. Intraparenchymal hemorrhage into the left basal ganglia from rupture of lenticulostriate
vessels
D. Transient ischemic attack involving the left posterior cerebral artery territory
Correct Answer: A
Rationale: Right-sided face and arm weakness with expressive aphasia localizes to the left middle cerebral
artery (MCA) territory, which supplies the dominant frontal motor cortex and Broca area; arterial occlusion
produces ischemia, failure of the Na+/K+ ATPase pump, and cytotoxic edema, consistent with NSG 530
stroke pathophysiology. Option B is wrong because the deficits are right-sided and neglect localizes to the
nondominant (right) hemisphere. Option C is excluded by the negative CT for hemorrhage and absence of
headache or depressed consciousness. Option D is wrong because a TIA would have fully resolved and the
posterior circulation affects the occipital lobe, cerebellum, and brainstem rather than language and arm motor
areas.
Wilkes University | Department of Graduate Nursing | Advanced Pathophysiology (NSG 530) 1
,NSG530 / NSG 530 EXAM 3 | ADVANCED PATHOPHYSIOLOGY REVIEW GUIDE -
Q2: A 72-year-old woman presents 3 hours after onset of left-sided weakness. Her non-contrast
head CT is normal. Which diagnostic study is MOST sensitive for detecting early cerebral
ischemia at this stage?
A. Repeat non-contrast CT in 6 hours, because infarct edema requires at least 12 hours to
appear
B. Diffusion-weighted MRI (DWI), which detects restricted water diffusion from cytotoxic
edema within minutes of arterial occlusion [CORRECT]
C. Lumbar puncture with CSF analysis for elevated protein and red blood cells
D. Electroencephalography to identify focal slowing in the ischemic hemisphere
Correct Answer: B
Rationale: DWI detects restricted diffusion caused by cytotoxic edema (cell swelling from ATP failure)
within minutes of ischemic onset and is the gold standard for early infarct detection, a key diagnostic
correlation in NSG 530. Non-contrast CT is insensitive in the first several hours and is used mainly to exclude
hemorrhage before thrombolysis, making option A incorrect. Lumbar puncture (C) is not used to diagnose
acute ischemia and risks herniation with mass lesions. EEG (D) shows changes in seizures and
encephalopathies but lacks sensitivity or specificity for acute infarction.
Q3: Which statement MOST accurately describes the pathophysiology of a transient ischemic
attack (TIA)?
A. A permanent infarct smaller than 1 cm that produces symptoms lasting less than 24
hours
B. A hemorrhagic event confined to the subarachnoid space that resolves spontaneously
C. A transient episode of focal neurologic dysfunction caused by focal brain ischemia
without acute infarction of tissue [CORRECT]
D. A hypoperfusion state caused by systemic hypotension that produces global rather than
focal symptoms
Correct Answer: C
Rationale: The modern tissue-based definition endorsed in NSG 530 characterizes TIA as transient focal
ischemia WITHOUT infarction; symptoms typically resolve within 1 hour and always within 24 hours, with
no permanent injury on imaging. Option A is incorrect because any tissue infarction, regardless of size,
reclassifies the event as a stroke. Option B describes subarachnoid hemorrhage, not TIA. Option D describes
global hypoperfusion from systemic hypotension (as in syncope), which is not a focal ischemic event.
Wilkes University | Department of Graduate Nursing | Advanced Pathophysiology (NSG 530) 2
,NSG530 / NSG 530 EXAM 3 | ADVANCED PATHOPHYSIOLOGY REVIEW GUIDE -
Q4: A 78-year-old man with poorly controlled hypertension suddenly develops a severe
headache, right hemiparesis, and lethargy. Imaging shows an acute hemorrhage in the left basal
ganglia. Which mechanism MOST likely explains this hemorrhagic stroke?
A. Rupture of a saccular (berry) aneurysm at the circle of Willis
B. Embolic occlusion of a penetrating artery followed by hemorrhagic transformation
C. Rupture of an arteriovenous malformation in the deep basal ganglia
D. Rupture of Charcot-Bouchard microaneurysms in small penetrating lenticulostriate
arteries damaged by chronic hypertension [CORRECT]
Correct Answer: D
Rationale: Chronic hypertension causes lipohyalinosis and Charcot-Bouchard microaneurysm formation in
deep penetrating vessels, most commonly the lenticulostriate arteries supplying the basal ganglia, thalamus,
pons, and cerebellum, which is the classic mechanism emphasized in NSG 530 hypertensive intracerebral
hemorrhage. Option A produces subarachnoid hemorrhage with thunderclap headache, not an
intraparenchymal basal ganglia clot. Option B is illogical because the initial event here was hemorrhage, not
infarction. Option C, an AVM rupture, is a congenital vascular anomaly typically seen in younger patients.
Q5: A nurse is explaining why intracranial pressure rises rapidly after traumatic brain injury.
Which statement BEST reflects the Monro-Kellie doctrine?
A. Because the skull is a rigid, closed compartment, an increase in any component (brain
tissue, blood, or CSF) must be offset by a reciprocal decrease in another component, or
intracranial pressure will rise [CORRECT]
B. Cerebrospinal fluid production ceases when intracranial pressure exceeds 20 mm Hg,
allowing the ventricles to decompress
C. Brain tissue can be compressed to one-third of its normal volume before intracranial
pressure begins to rise
D. Intracranial pressure remains constant until the dura mater is physically disrupted by
fracture
Correct Answer: A
Rationale: The Monro-Kellie doctrine states that the total volume of brain (approximately 80 percent), blood
(10 percent), and CSF (10 percent) within the rigid skull is constant; compensation occurs by displacing CSF
into the spinal canal and shunting venous blood out, after which ICP rises exponentially, a foundational
concept in NSG 530. Option B is false because CSF production continues while absorption is impaired.
Option C reverses the physiology: intracranial compliance is exhausted after only about 100 mL of added
volume. Option D is false because ICP rises with any expanding intracranial volume, whether or not a fracture
exists.
Wilkes University | Department of Graduate Nursing | Advanced Pathophysiology (NSG 530) 3
, NSG530 / NSG 530 EXAM 3 | ADVANCED PATHOPHYSIOLOGY REVIEW GUIDE -
Q6: Which definition of status epilepticus is used in current evidence-based practice?
A. Any seizure that occurs while the patient is taking two or more antiepileptic drugs
B. A seizure lasting 5 or more minutes, or two or more seizures without full return to
baseline consciousness between them [CORRECT]
C. Three consecutive tonic-clonic seizures occurring within a single 24-hour period
D. A seizure accompanied by postictal psychosis lasting longer than 30 minutes
Correct Answer: B
Rationale: Status epilepticus is operationally defined as a single seizure of 5 minutes or longer, or recurrent
seizures without recovery between episodes; this 5-minute operational threshold reflects the point at which
GABA receptor internalization and pharmacoresistance begin, a mechanism discussed in NSG 530. Option A
describes drug-refractory epilepsy, not status epilepticus. Option C reflects the older definition of some
seizure disorders but not status epilepticus. Option D describes a psychiatric postictal phenomenon and does
not define the emergency.
Q7: Which mechanism BEST explains the neuronal hypersynchrony that underlies seizure
activity?
A. Excess inhibitory input through glutamate-activated NMDA receptors in the cerebral
cortex
B. Hyperpolarization of postsynaptic neurons secondary to unregulated chloride influx
C. An imbalance in which excitatory glutamatergic activity overwhelms inhibitory
GABAergic control, producing synchronized, self-sustaining neuronal discharge
[CORRECT]
D. Decreased extracellular potassium that stabilizes neuronal membranes below firing
threshold
Correct Answer: C
Rationale: Seizures arise when excitatory glutamate-mediated signaling (NMDA and AMPA receptors)
exceeds inhibitory GABA-mediated control, producing paroxysmal depolarization shifts and
hypersynchronous discharge across neuronal networks, the core excitatory-inhibitory imbalance taught in
NSG 530. Option A is wrong because glutamate is excitatory, not inhibitory. Option B describes enhanced
inhibition, the opposite of seizures. Option D is wrong because rising, not falling, extracellular potassium
depolarizes neurons and lowers the seizure threshold.
Wilkes University | Department of Graduate Nursing | Advanced Pathophysiology (NSG 530) 4
