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NR 507 Final Exam Study Guide | Advanced Pathophysiology Practice Questions & Rationales 2026

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This NR 507 Final Exam Study Guide is fully updated for 2026 and designed to help advanced nursing students master complex disease processes. It includes concept-based practice questions with detailed rationales to enhance critical thinking, clinical reasoning, and exam confidence. Ideal for students preparing ethically and effectively for WGU NR 507 assessments.

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NR 507 FINAL EXAM (NEW UPDATED VERSION) LATEST ACTUAL EXAM
QUESTIONS AND CORRECT ANSWERS (VERIFIED QUESTIONS AND ANSWERS) |
GUARANTEED PASS A+ UPDATED THIS YEAR




Dermatomes - CORRECT ANSWER area of the skin that is mainly supplied by
branches of a single spinal sensory nerve root. These spinal sensory nerves enter the
nerve root at the spinal cord, and their branches reach to the periphery of the body.



QUESTION :Substance release at the synapse - CORRECT ANSWER
Acetylcholine- Excitatory or inhibitory- alzheimers



Norepi- Excitatory or inhibitory- sleep/wake cycle, SYNS transmission



Dopa- Excitatory (h1 and h2 receptors) and inhibitory (H3 receptors). parkinson disease



QUESTION :Spondylolysis - CORRECT ANSWER structural defect
(degeneration, fracture, or developmental defect) in the pars interarticularis of the
vertebral arch (the joining of the vertebral body to the posterior structures). The lumbar
spine at L5 is affected most often.

-Heredity

-Other congenital spinal defects




2026 2027 GRADED A+

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QUESTION :motor and sensory areas of the brain - CORRECT ANSWER Parietal
lobe- major area for somatic sensory input, located along the postcentral gyrus. which is
adjacent to the primary motor area in the precentral gyrus.



Primary motor area (Brodmann area 4)- located along the precentral gyrus forming the
primary voluntary motor area (homunculus) (little man).



Association fibers provide communication between sensory and motor



QUESTION :Ischemic penumbra - CORRECT ANSWER ischemic but not
infarcted (salvageable) tissue. Peri-infarct tissue.

-no structural damage



QUESTION :Cerebral infarction - CORRECT ANSWER ischemic- white infarct
(affected area is pale and soft 6-12 hours after). necrosis appears by 48 to 72 hours.



Infiltration of macrophages and phagocytosis of necrotic tissue. necrosis resolves
around the 2nd week. glial scarring.



QUESTION :excitotoxins - CORRECT ANSWER Toxins (usually amino acids) that
overstimulate glutamate release and cause neuron suicide.



QUESTION :Agnosia - CORRECT ANSWER the inability to recognize familiar
objects.



-tactile/spatial-parietal lobe




2026 2027 GRADED A+

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-Gerstmann syndrome (loss of spatial orientation of fingers, body, sides and #s)- L
angular gyrus (Parieral)

-Object- Temporo-occipital area

-Associated with CVAs



QUESTION :Subarachnoid hemorrhage - CORRECT ANSWER Bleeding into the
subarachnoid space, where the cerebrospinal fluid circulates.

-ruptured intracranial aneurysm/trauma

-IICP/irritates meningeal tissues/produces inflammation, blood coats nerve roots,
impairs CSF circulation

-compensatory increase in SBP



QUESTION :Meningitis - CORRECT ANSWER Bacterial- Meningococcus and S.
pneumococcus bacteria are most common



Viral- Specific pathogen cannot be found in CSF



QUESTION :Prostate cancer prevention - CORRECT ANSWER -Eat a low fat diet

- Slow growing cancer so DRE and PSA testing prevents



QUESTION :BPH and the urinary system - CORRECT ANSWER - Chronic
inflammation

-Bladder outflow obstruction

-Urge to pee often

-delay in starting stream




2026 2027 GRADED A+

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- Decreased force of stream

-Urinary retention/ overflow incontinence (late sign)

Complications: Hematuria, infections, bladder calculi, retention, hydronephrosis, renal
insufficiency



QUESTION :Cause of respiratory Alkalosis - CORRECT ANSWER - fever

-anemia,

-anxiety, panic

-thyrotoxicosis

-hyperventilation



QUESTION :buffer molecules - CORRECT ANSWER -Plasma- Bicarbonate-
carbonic acid and HGB.

-Intracellular- Phosphate and protein

Renal- Ammonia and Phosphate



QUESTION :Cushing's disease - CORRECT ANSWER - Excess endogenous
secretion of ACTH (Corticotropin).

-from a pituitary adenoma or by an ectopic secreting non pituitary tumor such as small
cell carcinoma of the lung.or adrenal tumor (rare)



- HYPERnatremia, HYPERtension, INCREASED blood volume, HYPOkalemia,
HYPERglycemia, weight gain, thin hair, moon face, easy bruising, buffalo hump, protein
wasting




2026 2027 GRADED A+

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