Pathophysiology
OA V2 EXAM
Actual Questions with Verified Answers
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➢70 OA Exam Questions w/ Answers
➢ (Megan/Shay’s Study Guides)
➢ Casey's WGU NY01 Patho Note
➢ Expert Rationales included.
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,Table of Contents
D236 OA – V2 Exam ............................................................... 2
D236 Patho - Megan/Shay’s Study Guides.................... 37
Casey's WGU NY01 Patho Notes ....................................... 99
D236 OA – V2 Exam
1. A patient presents with sudden onset of limb pain, pallor, and absent distal
pulses after prolonged immobilization following hip surgery. Which
cardiovascular condition involves a blood clot blocking circulation in blood
vessels?
A. Thrombosis
B. Embolism
C. Aneurysm
D. Stenosis
Correct Answer: B
Expert Rationale:
An embolism occurs when a detached thrombus or other foreign material
(embolus) travels through the bloodstream and occludes a vessel, causing acute
ischemia. Thrombosis refers to clot formation at the site, whereas an embolism
specifically involves migration and obstruction. Aneurysm is a localized vessel
dilation, and stenosis is narrowing without complete occlusion.
, 2. A 28-year-old construction worker slips on a wet log and lands on a sharp
stick, puncturing his thigh. Two hours later, the wound site demonstrates
erythema, warmth, and purulent drainage. Which type of cell phagocytoses
bacteria and damaged cells as part of the innate immune response?
A. Basophil
B. Lymphocyte
C. Neutrophil
D. Eosinophil
Correct Answer: C
Expert Rationale:
Neutrophils are the first responders in acute inflammation and are highly
phagocytic, engulfing bacteria and cellular debris. Basophils mediate allergic
responses via histamine release. Lymphocytes are central to adaptive immunity.
Eosinophils primarily target parasitic infections and modulate allergic reactions.
3. A 17-year-old male is evaluated for infertility. Physical examination reveals
gynecomastia, small firm testes, sparse body hair, a high-pitched voice, tall
stature, and moderate intellectual disability. Which chromosomal condition does
this person most likely have?
A. Turner syndrome
B. Klinefelter syndrome
C. Down syndrome
D. Fragile X syndrome
Correct Answer: B
Expert Rationale:
Klinefelter syndrome (47,XXY) is the most common sex chromosome disorder in