WGU D236
Pathophysiology
OA V2 EXAM
(3 Full Exams Set)
Actual Questions with Verified Answers
Pass the Exam with Confidence
What You Will Get:
➢220 OA Exam Questions w/ Answers
➢ (Megan/Shay’s Study Guides)
➢ Casey's WGU NY01 Patho Note
➢ Expert Rationales included.
Take and pass the OA :)
, DIGITAL PDF PREVIEW
Preview Pages Below
Get the Complete PDF
After Purchase
If you require further clarification or in need of any study resources,
feel free to Message me.
Preview selections begin on the following pages
,Table of Contents
D236 OA – V2 Exam 1 ......................................................................... 2
D236 OA – V2 Exam 2 ....................................................................... 30
D236 OA – V2 Exam 3 ....................................................................... 68
D236 Patho - Megan/Shay’s Study Guides .................................... 102
Casey's WGU NY01 Patho Notes ................................................... 163
D236 OA – V2 Exam 1
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 males.
Clinical manifestations include hypogonadism, gynecomastia, tall stature, reduced body
hair, and varying degrees of cognitive impairment. Turner syndrome (45,X) affects
females. Down syndrome (trisomy 21) presents with distinct craniofacial features and
intellectual disability but not hypogonadism. Fragile X syndrome is associated with
macroorchidism and autism spectrum features.
,4. A newborn with Down syndrome undergoes cardiac evaluation prior to
discharge. Which congenital anomaly most commonly contributes to the reduced
survival rate observed in this population?
A. Ventricular septal defect
B. Atrial septal defect
C. Congenital heart defects (general)
D. Coarctation of the aorta
Correct Answer: C
Expert Rationale:
Approximately 40–50% of infants with Down syndrome have congenital heart defects,
including atrioventricular septal defects, VSDs, and patent ductus arteriosus. These
structural anomalies significantly increase morbidity and mortality, particularly in early
infancy, necessitating echocardiographic screening at birth.
5. During embryonic development, the posterior neuropore fails to close by the
fourth week of gestation. Which disorder is associated with this neural tube
defect?
A. Anencephaly
B. Spina bifida
C. Encephalocele
D. Hydrocephalus
Correct Answer: B
Expert Rationale:
Spina bifida results from incomplete closure of the posterior neural tube, leading to
vertebral arch defects and potential herniation of meninges or spinal cord. Anencephaly
arises from failure of the anterior neuropore to close. Encephalocele involves herniation
of brain tissue through a skull defect. Hydrocephalus is often a secondary complication
rather than a primary neural tube defect.
6. A 35-year-old basketball player jumps for a rebound and feels a sudden pop in
his calf, followed by intense pain and inability to plantarflex his foot against
resistance. Which type of injury has he sustained?
,A. Sprain
B. Strain
C. Fracture
D. Dislocation
Correct Answer: B
Expert Rationale:
A strain involves stretching or tearing of muscle fibers or tendons, commonly affecting
the gastrocnemius-soleus complex during explosive acceleration or jumping. A sprain
involves ligamentous injury. Fracture denotes bone disruption, and dislocation involves
joint malalignment. The mechanism and loss of plantarflexion strength are classic for a
calf strain.
7. A 22-year-old male sustains a comminuted tibial fracture in a motorcycle
accident. Six hours post-injury, he develops severe pain disproportionate to the
injury, pain with passive stretch of the toes, and paresthesia in the foot. Which
condition is most likely?
A. Deep vein thrombosis
B. Acute compartment syndrome
C. Fat embolism syndrome
D. Complex regional pain syndrome
Correct Answer: B
Expert Rationale:
Acute compartment syndrome is a surgical emergency characterized by increased
pressure within a fascial compartment, compromising perfusion and neuromuscular
function. The "6 Ps"—pain out of proportion, pallor, pulselessness, paresthesia,
paralysis, and poikilothermia—guide diagnosis. Fractures and penetrating trauma to the
forearm, lower leg, or abdomen are primary causes. Immediate fasciotomy is required
to prevent irreversible ischemic damage.
8. A 35-year-old male is brought to the ED after a house fire. He has full-thickness
burns covering 40% of his total body surface area. Vital signs reveal tachycardia
and hypotension. Labs demonstrate metabolic acidosis and hemoconcentration.
Which condition explains these systemic findings?
, D236 OA – V2 Exam 2
1. A patient has severe itching on the face. The physical exam reveals dry skin
and small lesions. The patient has a family history of allergic rhinitis. The
physician prescribes topical anti-itch cream and instructs daily skin care. Which
condition is described?
A. Psoriasis
B. Eczema
C. Contact dermatitis
D. Urticaria
Correct Answer: B
Expert Rationale:
Eczema (atopic dermatitis) is a chronic inflammatory skin condition characterized by
pruritus (itching), dry skin, and erythematous papules or vesicles. It is strongly
associated with a personal or family history of atopy (allergic rhinitis, asthma).
Treatment includes emollients, topical corticosteroids, and trigger avoidance. Psoriasis
(A) presents with well-demarcated plaques with silvery scale. Contact dermatitis (C)
requires an identifiable irritant/allergen exposure. Urticaria (D) presents as wheals.
2. A patient's record indicates a skin condition in which depigmentation appears
on different parts of the body that are often exposed to sunlight. A skin biopsy
reveals a lack of melanocytes. Which condition does this describe?
A. Albinism
B. Vitiligo
C. Melasma
D. Tinea versicolor
Correct Answer: B
Expert Rationale:
Vitiligo is an autoimmune disorder characterized by the destruction of melanocytes,
resulting in depigmented macules or patches commonly on sun-exposed areas (face,
,hands, arms). Histology confirms the absence of melanocytes. Albinism (A) is a
congenital reduction in melanin synthesis. Melasma (C) presents with
hyperpigmentation. Tinea versicolor (D) is a fungal infection causing hypopigmented or
hyperpigmented patches.
3. Medical records show that a patient presented with a skin condition
characterized by blackheads. The patient has scarring from this ongoing problem
and was prescribed antibacterial solution. Which condition is described?
A. Rosacea
B. Acne vulgaris
C. Seborrheic dermatitis
D. Folliculitis
Correct Answer: B
Expert Rationale:
Acne vulgaris is a disorder of the pilosebaceous unit characterized by comedones
(blackheads and whiteheads), papules, pustules, and potential scarring. Treatment
includes topical antibacterial agents (benzoyl peroxide, clindamycin), retinoids, and
systemic therapies for severe cases. Rosacea (A) presents with erythema and
telangiectasias without comedones. Folliculitis (D) involves hair follicle inflammation.
4. A 19-year-old patient reports persistent itching and peeling dry skin between
the first and second toes. The patient also has a burning sensation. An internal
medicine practitioner prescribes antifungal ointment and wash for the next four
weeks. Which condition does this patient have?
A. Contact dermatitis
B. Tinea pedis
C. Psoriasis
D. Eczema
Correct Answer: B
Expert Rationale:
Tinea pedis (athlete's foot) is a dermatophyte fungal infection commonly affecting the
interdigital spaces of the feet. It presents with pruritus, scaling, maceration, and burning.
, The classic interdigital presentation between the toes, combined with the response to
antifungal therapy, confirms the diagnosis. Contact dermatitis (A) would improve with
removal of the irritant. Psoriasis (C) and eczema (D) would not respond to antifungals.
5. A patient who is confined to a wheelchair has a lesion on his buttock. The
lesion is painful and emits a foul-smelling odor. Upon examination, the provider
notes the area of the lesion contains dead skin and subcutaneous tissue. Which
condition is described?
A. Diabetic ulcer
B. Decubitus ulcer
C. Venous stasis ulcer
D. Arterial ulcer
Correct Answer: B
Expert Rationale:
A decubitus ulcer (pressure injury) develops over bony prominences (sacrum, buttocks,
heels) due to prolonged pressure, particularly in immobilized patients. It progresses
through stages from non-blanchable erythema to full-thickness tissue loss with necrosis.
The buttock location, wheelchair confinement, and presence of necrotic tissue are
hallmark features. Venous stasis ulcers (C) occur at the medial malleolus.
6. A patient has tremors, bradykinesia, and abnormal gait. The patient is taking
anticholinergics; however, the symptoms are aggravated. A neurologist treats the
patient with deep brain stimulation. Which condition is being described?
A. Multiple sclerosis
B. Parkinson disease
C. Essential tremor
D. Huntington disease
Correct Answer: B
Expert Rationale:
Parkinson disease is a neurodegenerative disorder characterized by the classic triad of
resting tremor, bradykinesia, and postural instability/gait abnormalities. It results from
dopaminergic neuron degeneration in the substantia nigra. Treatment includes
Pathophysiology
OA V2 EXAM
(3 Full Exams Set)
Actual Questions with Verified Answers
Pass the Exam with Confidence
What You Will Get:
➢220 OA Exam Questions w/ Answers
➢ (Megan/Shay’s Study Guides)
➢ Casey's WGU NY01 Patho Note
➢ Expert Rationales included.
Take and pass the OA :)
, DIGITAL PDF PREVIEW
Preview Pages Below
Get the Complete PDF
After Purchase
If you require further clarification or in need of any study resources,
feel free to Message me.
Preview selections begin on the following pages
,Table of Contents
D236 OA – V2 Exam 1 ......................................................................... 2
D236 OA – V2 Exam 2 ....................................................................... 30
D236 OA – V2 Exam 3 ....................................................................... 68
D236 Patho - Megan/Shay’s Study Guides .................................... 102
Casey's WGU NY01 Patho Notes ................................................... 163
D236 OA – V2 Exam 1
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 males.
Clinical manifestations include hypogonadism, gynecomastia, tall stature, reduced body
hair, and varying degrees of cognitive impairment. Turner syndrome (45,X) affects
females. Down syndrome (trisomy 21) presents with distinct craniofacial features and
intellectual disability but not hypogonadism. Fragile X syndrome is associated with
macroorchidism and autism spectrum features.
,4. A newborn with Down syndrome undergoes cardiac evaluation prior to
discharge. Which congenital anomaly most commonly contributes to the reduced
survival rate observed in this population?
A. Ventricular septal defect
B. Atrial septal defect
C. Congenital heart defects (general)
D. Coarctation of the aorta
Correct Answer: C
Expert Rationale:
Approximately 40–50% of infants with Down syndrome have congenital heart defects,
including atrioventricular septal defects, VSDs, and patent ductus arteriosus. These
structural anomalies significantly increase morbidity and mortality, particularly in early
infancy, necessitating echocardiographic screening at birth.
5. During embryonic development, the posterior neuropore fails to close by the
fourth week of gestation. Which disorder is associated with this neural tube
defect?
A. Anencephaly
B. Spina bifida
C. Encephalocele
D. Hydrocephalus
Correct Answer: B
Expert Rationale:
Spina bifida results from incomplete closure of the posterior neural tube, leading to
vertebral arch defects and potential herniation of meninges or spinal cord. Anencephaly
arises from failure of the anterior neuropore to close. Encephalocele involves herniation
of brain tissue through a skull defect. Hydrocephalus is often a secondary complication
rather than a primary neural tube defect.
6. A 35-year-old basketball player jumps for a rebound and feels a sudden pop in
his calf, followed by intense pain and inability to plantarflex his foot against
resistance. Which type of injury has he sustained?
,A. Sprain
B. Strain
C. Fracture
D. Dislocation
Correct Answer: B
Expert Rationale:
A strain involves stretching or tearing of muscle fibers or tendons, commonly affecting
the gastrocnemius-soleus complex during explosive acceleration or jumping. A sprain
involves ligamentous injury. Fracture denotes bone disruption, and dislocation involves
joint malalignment. The mechanism and loss of plantarflexion strength are classic for a
calf strain.
7. A 22-year-old male sustains a comminuted tibial fracture in a motorcycle
accident. Six hours post-injury, he develops severe pain disproportionate to the
injury, pain with passive stretch of the toes, and paresthesia in the foot. Which
condition is most likely?
A. Deep vein thrombosis
B. Acute compartment syndrome
C. Fat embolism syndrome
D. Complex regional pain syndrome
Correct Answer: B
Expert Rationale:
Acute compartment syndrome is a surgical emergency characterized by increased
pressure within a fascial compartment, compromising perfusion and neuromuscular
function. The "6 Ps"—pain out of proportion, pallor, pulselessness, paresthesia,
paralysis, and poikilothermia—guide diagnosis. Fractures and penetrating trauma to the
forearm, lower leg, or abdomen are primary causes. Immediate fasciotomy is required
to prevent irreversible ischemic damage.
8. A 35-year-old male is brought to the ED after a house fire. He has full-thickness
burns covering 40% of his total body surface area. Vital signs reveal tachycardia
and hypotension. Labs demonstrate metabolic acidosis and hemoconcentration.
Which condition explains these systemic findings?
, D236 OA – V2 Exam 2
1. A patient has severe itching on the face. The physical exam reveals dry skin
and small lesions. The patient has a family history of allergic rhinitis. The
physician prescribes topical anti-itch cream and instructs daily skin care. Which
condition is described?
A. Psoriasis
B. Eczema
C. Contact dermatitis
D. Urticaria
Correct Answer: B
Expert Rationale:
Eczema (atopic dermatitis) is a chronic inflammatory skin condition characterized by
pruritus (itching), dry skin, and erythematous papules or vesicles. It is strongly
associated with a personal or family history of atopy (allergic rhinitis, asthma).
Treatment includes emollients, topical corticosteroids, and trigger avoidance. Psoriasis
(A) presents with well-demarcated plaques with silvery scale. Contact dermatitis (C)
requires an identifiable irritant/allergen exposure. Urticaria (D) presents as wheals.
2. A patient's record indicates a skin condition in which depigmentation appears
on different parts of the body that are often exposed to sunlight. A skin biopsy
reveals a lack of melanocytes. Which condition does this describe?
A. Albinism
B. Vitiligo
C. Melasma
D. Tinea versicolor
Correct Answer: B
Expert Rationale:
Vitiligo is an autoimmune disorder characterized by the destruction of melanocytes,
resulting in depigmented macules or patches commonly on sun-exposed areas (face,
,hands, arms). Histology confirms the absence of melanocytes. Albinism (A) is a
congenital reduction in melanin synthesis. Melasma (C) presents with
hyperpigmentation. Tinea versicolor (D) is a fungal infection causing hypopigmented or
hyperpigmented patches.
3. Medical records show that a patient presented with a skin condition
characterized by blackheads. The patient has scarring from this ongoing problem
and was prescribed antibacterial solution. Which condition is described?
A. Rosacea
B. Acne vulgaris
C. Seborrheic dermatitis
D. Folliculitis
Correct Answer: B
Expert Rationale:
Acne vulgaris is a disorder of the pilosebaceous unit characterized by comedones
(blackheads and whiteheads), papules, pustules, and potential scarring. Treatment
includes topical antibacterial agents (benzoyl peroxide, clindamycin), retinoids, and
systemic therapies for severe cases. Rosacea (A) presents with erythema and
telangiectasias without comedones. Folliculitis (D) involves hair follicle inflammation.
4. A 19-year-old patient reports persistent itching and peeling dry skin between
the first and second toes. The patient also has a burning sensation. An internal
medicine practitioner prescribes antifungal ointment and wash for the next four
weeks. Which condition does this patient have?
A. Contact dermatitis
B. Tinea pedis
C. Psoriasis
D. Eczema
Correct Answer: B
Expert Rationale:
Tinea pedis (athlete's foot) is a dermatophyte fungal infection commonly affecting the
interdigital spaces of the feet. It presents with pruritus, scaling, maceration, and burning.
, The classic interdigital presentation between the toes, combined with the response to
antifungal therapy, confirms the diagnosis. Contact dermatitis (A) would improve with
removal of the irritant. Psoriasis (C) and eczema (D) would not respond to antifungals.
5. A patient who is confined to a wheelchair has a lesion on his buttock. The
lesion is painful and emits a foul-smelling odor. Upon examination, the provider
notes the area of the lesion contains dead skin and subcutaneous tissue. Which
condition is described?
A. Diabetic ulcer
B. Decubitus ulcer
C. Venous stasis ulcer
D. Arterial ulcer
Correct Answer: B
Expert Rationale:
A decubitus ulcer (pressure injury) develops over bony prominences (sacrum, buttocks,
heels) due to prolonged pressure, particularly in immobilized patients. It progresses
through stages from non-blanchable erythema to full-thickness tissue loss with necrosis.
The buttock location, wheelchair confinement, and presence of necrotic tissue are
hallmark features. Venous stasis ulcers (C) occur at the medial malleolus.
6. A patient has tremors, bradykinesia, and abnormal gait. The patient is taking
anticholinergics; however, the symptoms are aggravated. A neurologist treats the
patient with deep brain stimulation. Which condition is being described?
A. Multiple sclerosis
B. Parkinson disease
C. Essential tremor
D. Huntington disease
Correct Answer: B
Expert Rationale:
Parkinson disease is a neurodegenerative disorder characterized by the classic triad of
resting tremor, bradykinesia, and postural instability/gait abnormalities. It results from
dopaminergic neuron degeneration in the substantia nigra. Treatment includes
