WGU D027 OA REMEDIATION (MICHELLE'S
VERSION) EXAM STUDY SET WITH 100% VERIFIED
2026 UPDATE!!
WGU D027 OA Remediation (Michelle's Version) - Verified Study Questions
Autoimmune & Gastrointestinal Disorders
1. Celiac Disease primarily affects which part of the body?
a. Liver
b. Small intestine
c. Large intestine
d. Pancreas
Answer: b. Small intestine
Rationale: Celiac disease is an autoimmune disorder where gluten damages the
lining of the small intestine, impairing nutrient absorption. The lining of the small
intestine sees gluten as a foreign invader. Testing includes IgA-tTG and Total IgA .
2. Which laboratory test is most commonly used to screen for Celiac Disease?
a. Anti-CCP antibody
b. IgA tissue transglutaminase (tTG)
c. ANA (antinuclear antibody)
d. ESR (erythrocyte sedimentation rate)
Answer: b. IgA tissue transglutaminase (tTG)
Rationale: IgA-tTG is the most sensitive and specific screening test for celiac
disease .
,3. Sjogren's Syndrome is most often associated with which two chronic
autoimmune diseases?
a. Diabetes & Hashimoto's
b. Rheumatoid arthritis & Lupus
c. Psoriasis & Crohn's disease
d. Multiple sclerosis & Myasthenia gravis
Answer: b. Rheumatoid arthritis & Lupus
Rationale: Sjogren's often coexists with RA and lupus, presenting with dry eyes
and dry mouth. Testing includes SSA+ and SSB+ .
4. Sjogren's Syndrome - Clinical presentation:
a. Joint pain and swelling
b. Dry eyes and dry mouth
c. Skin rash and photosensitivity
d. Abdominal pain and diarrhea
Answer: b. Dry eyes and dry mouth
Rationale: This immune disorder typically affects older women or patients with RA
and Lupus, characterized by dryness of mucous membranes .
5. Crohn's Disease is characterized by:
a. Continuous mucosal inflammation starting at rectum
b. Skip lesions and small bowel cobblestoning
c. Inflammation limited to the mucosa
d. Rectal bleeding as primary symptom
Answer: b. Skip lesions and small bowel cobblestoning
Rationale: Crohn's disease involves inflammation and scarring in the intestine with
skip lesions and cobblestoning of the small bowel. It worsens after eating with
pain around the navel and right lower abdomen. Treatment includes
immunosuppressants .
6. Ulcerative Colitis - Pathophysiology:
a. Transmural inflammation with fistulas
b. Continuous inflammation starting at rectum with crypt abscesses
c. Skip lesions with granulomas
d. Inflammation of the entire GI tract
,Answer: b. Continuous inflammation starting at rectum with crypt abscesses
Rationale: Unlike Crohn's, ulcerative colitis involves continuous mucosal
inflammation beginning in the rectum and extending proximally .
Cardiology & Congenital Heart Disease
7. Hypoplastic Left Heart Syndrome (HLHS) is best described as:
a. A narrowing of the coronary arteries
b. A congenital underdevelopment of the left side of the heart
c. Aortic valve stenosis due to rheumatic fever
d. Excessive pulmonary artery pressure
Answer: b. A congenital underdevelopment of the left side of the heart
Rationale: HLHS involves an underdeveloped left ventricle, mitral/aortic valves,
and ascending aorta. Signs/symptoms include high HR, SOB, poor feeding,
cold/blue skin, and weak pulses .
8. Survival in HLHS during the first few days of life depends on the patency of
which fetal structures?
a. Ductus venosus & tricuspid valve
b. Ductus arteriosus & foramen ovale
c. Coronary sinus & pulmonary veins
d. Inferior vena cava & superior vena cava
Answer: b. Ductus arteriosus & foramen ovale
Rationale: These shunts allow blood flow to bypass the underdeveloped left heart.
The right side works to compensate for the left side during the first few days of
life .
9. Left sided heart failure affects:
a. Systemic venous circulation
b. Pulmonary vasculature with increased JVP, S3, rales
c. Hepatic congestion
d. Peripheral edema only
Answer: b. Pulmonary vasculature with increased JVP, S3, rales
Rationale: Left-sided heart failure causes pulmonary congestion with
characteristic findings .
, 10. Right sided heart failure manifestations include:
a. Pulmonary edema and crackles
b. Jugular Vein Distention, ascending dependent edema, weight gain,
hepatomegaly
c. Orthopnea and paroxysmal nocturnal dyspnea
d. Cough and hemoptysis
Answer: b. Jugular Vein Distention, ascending dependent edema, weight gain,
hepatomegaly
Rationale: Right heart failure causes systemic venous congestion .
11. Normal Ejection Fraction (EF) is:
a. 35-40%
b. 45-50%
c. 55-60%
d. 65-70%
Answer: c. 55-60%
*Rationale: Normal ejection fraction ranges from 55-60% .*
12. Best way to evaluate structure and function of the heart:
a. ECG
b. Chest X-ray
c. Echocardiogram
d. Cardiac MRI
Answer: c. Echocardiogram
Rationale: Echo is the best initial test for structural and functional cardiac
assessment .
Endocrine Disorders & Thyroid Function
13. Parathyroid glands function to:
a. Regulate thyroid hormone
b. Produce cortisol
c. Regulate calcium through PTH secretion
d. Secrete insulin
VERSION) EXAM STUDY SET WITH 100% VERIFIED
2026 UPDATE!!
WGU D027 OA Remediation (Michelle's Version) - Verified Study Questions
Autoimmune & Gastrointestinal Disorders
1. Celiac Disease primarily affects which part of the body?
a. Liver
b. Small intestine
c. Large intestine
d. Pancreas
Answer: b. Small intestine
Rationale: Celiac disease is an autoimmune disorder where gluten damages the
lining of the small intestine, impairing nutrient absorption. The lining of the small
intestine sees gluten as a foreign invader. Testing includes IgA-tTG and Total IgA .
2. Which laboratory test is most commonly used to screen for Celiac Disease?
a. Anti-CCP antibody
b. IgA tissue transglutaminase (tTG)
c. ANA (antinuclear antibody)
d. ESR (erythrocyte sedimentation rate)
Answer: b. IgA tissue transglutaminase (tTG)
Rationale: IgA-tTG is the most sensitive and specific screening test for celiac
disease .
,3. Sjogren's Syndrome is most often associated with which two chronic
autoimmune diseases?
a. Diabetes & Hashimoto's
b. Rheumatoid arthritis & Lupus
c. Psoriasis & Crohn's disease
d. Multiple sclerosis & Myasthenia gravis
Answer: b. Rheumatoid arthritis & Lupus
Rationale: Sjogren's often coexists with RA and lupus, presenting with dry eyes
and dry mouth. Testing includes SSA+ and SSB+ .
4. Sjogren's Syndrome - Clinical presentation:
a. Joint pain and swelling
b. Dry eyes and dry mouth
c. Skin rash and photosensitivity
d. Abdominal pain and diarrhea
Answer: b. Dry eyes and dry mouth
Rationale: This immune disorder typically affects older women or patients with RA
and Lupus, characterized by dryness of mucous membranes .
5. Crohn's Disease is characterized by:
a. Continuous mucosal inflammation starting at rectum
b. Skip lesions and small bowel cobblestoning
c. Inflammation limited to the mucosa
d. Rectal bleeding as primary symptom
Answer: b. Skip lesions and small bowel cobblestoning
Rationale: Crohn's disease involves inflammation and scarring in the intestine with
skip lesions and cobblestoning of the small bowel. It worsens after eating with
pain around the navel and right lower abdomen. Treatment includes
immunosuppressants .
6. Ulcerative Colitis - Pathophysiology:
a. Transmural inflammation with fistulas
b. Continuous inflammation starting at rectum with crypt abscesses
c. Skip lesions with granulomas
d. Inflammation of the entire GI tract
,Answer: b. Continuous inflammation starting at rectum with crypt abscesses
Rationale: Unlike Crohn's, ulcerative colitis involves continuous mucosal
inflammation beginning in the rectum and extending proximally .
Cardiology & Congenital Heart Disease
7. Hypoplastic Left Heart Syndrome (HLHS) is best described as:
a. A narrowing of the coronary arteries
b. A congenital underdevelopment of the left side of the heart
c. Aortic valve stenosis due to rheumatic fever
d. Excessive pulmonary artery pressure
Answer: b. A congenital underdevelopment of the left side of the heart
Rationale: HLHS involves an underdeveloped left ventricle, mitral/aortic valves,
and ascending aorta. Signs/symptoms include high HR, SOB, poor feeding,
cold/blue skin, and weak pulses .
8. Survival in HLHS during the first few days of life depends on the patency of
which fetal structures?
a. Ductus venosus & tricuspid valve
b. Ductus arteriosus & foramen ovale
c. Coronary sinus & pulmonary veins
d. Inferior vena cava & superior vena cava
Answer: b. Ductus arteriosus & foramen ovale
Rationale: These shunts allow blood flow to bypass the underdeveloped left heart.
The right side works to compensate for the left side during the first few days of
life .
9. Left sided heart failure affects:
a. Systemic venous circulation
b. Pulmonary vasculature with increased JVP, S3, rales
c. Hepatic congestion
d. Peripheral edema only
Answer: b. Pulmonary vasculature with increased JVP, S3, rales
Rationale: Left-sided heart failure causes pulmonary congestion with
characteristic findings .
, 10. Right sided heart failure manifestations include:
a. Pulmonary edema and crackles
b. Jugular Vein Distention, ascending dependent edema, weight gain,
hepatomegaly
c. Orthopnea and paroxysmal nocturnal dyspnea
d. Cough and hemoptysis
Answer: b. Jugular Vein Distention, ascending dependent edema, weight gain,
hepatomegaly
Rationale: Right heart failure causes systemic venous congestion .
11. Normal Ejection Fraction (EF) is:
a. 35-40%
b. 45-50%
c. 55-60%
d. 65-70%
Answer: c. 55-60%
*Rationale: Normal ejection fraction ranges from 55-60% .*
12. Best way to evaluate structure and function of the heart:
a. ECG
b. Chest X-ray
c. Echocardiogram
d. Cardiac MRI
Answer: c. Echocardiogram
Rationale: Echo is the best initial test for structural and functional cardiac
assessment .
Endocrine Disorders & Thyroid Function
13. Parathyroid glands function to:
a. Regulate thyroid hormone
b. Produce cortisol
c. Regulate calcium through PTH secretion
d. Secrete insulin
