WGU D027
OBJECTIVE ASSESSMENT - EXAM
WGU D027 OA Exam Advanced
Pathopharmacological Foundations
Tested Questions (Latest 2026/2027)
and Verified Rationalized Answers
Advanced Pathopharmacological Foundations | 2026/2027 Edition
50 100% 2026/2027
QUESTIONS VERIFIED ANSWERS EDITION
TOPICS COVERED
Cellular Biology & Genetics Neoplasia & Cancer Pharmacology
Cardiovascular Pathopharmacology Respiratory Pharmacology
Endocrine & Metabolic Disorders GI, Renal & Hematologic Systems
COVER PAGE - 1
, SECTION 1 | Cellular Biology, Genetics, and Neoplasia | Q1-Q10 | WGU D027 2026/2027
Q1 Question 1 of 50
A 58-year-old patient with a 30 pack-year smoking history presents with a persistent cough,
hemoptysis, and an 8 kg weight loss over three months. Chest CT reveals a 3.2 cm spiculated mass in
the right upper lobe with mediastinal lymphadenopathy. The oncologist orders molecular testing to
guide targeted therapy selection. Which genetic alteration is most commonly associated with
adenocarcinoma of the lung and would indicate eligibility for epidermal growth factor receptor (EGFR)
tyrosine kinase inhibitor therapy?
A. KRAS G12C mutation
B. EGFR exon 19 deletion or L858R mutation
C. BRAF V600E mutation
D. ROS1 gene rearrangement
Correct Answer: B
Rationale:
Rationale:
EGFRexon
EGFR exon19
19deletions
deletionsand
andL858R
L858Rpoint
pointmutations
mutationsarearethe
themost
mostcommon
commonactivating
activatingEGFR
EGFRmutations
mutationsininlung
lung
adenocarcinoma,occurring
adenocarcinoma, occurringininapproximately
approximately10-15%
10-15%ofofNSCLC
NSCLCcases
casesininWestern
Westernpopulations
populationsandandupuptoto40-50%
40-50%
ininAsian
Asianpopulations.
populations.These
Thesemutations
mutationsconfer
confersensitivity
sensitivitytotoEGFR
EGFRtyrosine
tyrosinekinase
kinaseinhibitors
inhibitorssuch
suchasasosimertinib.
osimertinib.
KRASmutations
KRAS mutationsarearecommon
commonbut butdo
donot
notpredict
predictEGFR
EGFRTKI TKIresponse;
response;BRAF
BRAFandandROS1
ROS1alterations
alterationsare
areless
less
commonand
common andindicate
indicatedifferent
differenttargeted
targetedtherapies.
therapies.
Q2 Question 2 of 50
A 45-year-old woman with a family history of breast and ovarian cancer undergoes genetic counseling.
Her mother and maternal aunt both developed breast cancer before age 50. The geneticist explains
that BRCA1 and BRCA2 are tumor suppressor genes involved in DNA double-strand break repair.
Which inheritance pattern is characteristic of hereditary breast and ovarian cancer syndrome caused
by BRCA1/BRCA2 mutations?
A. Autosomal recessive
B. Autosomal dominant
C. X-linked dominant
D. Mitochondrial inheritance
Correct Answer: B
Rationale:
Rationale:
BRCA1and
BRCA1 andBRCA2
BRCA2mutations
mutationsfollow
followan
anautosomal
autosomaldominant
dominantinheritance
inheritancepattern,
pattern,meaning
meaningaasingle
singlemutated
mutatedallele
allele
isissufficient
sufficienttotoconfer
confersignificantly
significantlyincreased
increasedcancer
cancerrisk.
risk.Each
Eachoffspring
offspringofofan
anaffected
affectedparent
parenthas
hasaa50%
50%chance
chanceofof
inheritingthe
inheriting themutation.
mutation.X-linked
X-linkeddominant
dominantand
andmitochondrial
mitochondrialpatterns
patternsare
arenotnotassociated
associatedwith
withBRCA
BRCAmutations,
mutations,
andautosomal
and autosomalrecessive
recessiveinheritance
inheritancedoes
doesnot
notapply
applytotothese
thesetumor
tumorsuppressor
suppressorgenes.
genes.
WGU D027 -- 2026/2027 | Passing Score: 80% | Page 2 of 27
, Q3 Question 3 of 50
A 62-year-old man with chronic hepatitis C infection is diagnosed with hepatocellular carcinoma (HCC).
The tumor measures 4.5 cm with no vascular invasion and no extrahepatic spread. According to the
Barcelona Clinic Liver Cancer (BCLC) staging system, which treatment approach is most appropriate
for a patient with early-stage HCC and preserved liver function (Child-Pugh A)?
A. Transarterial chemoembolization (TACE)
B. Systemic chemotherapy with cisplatin and gemcitabine
C. Best supportive care only
D. Surgical resection or liver transplantation
Correct Answer: D
Rationale:
Rationale:
ForBCLC
For BCLCstage
stage0-A
0-AHCC
HCC(single
(singletumor
tumorororup uptotothree
threenodules
nodulesless
lessthan
than33cm,
cm,preserved
preservedliver
liverfunction,
function,no
noportal
portal
hypertension), curative treatments including surgical resection, liver transplantation, or percutaneous
hypertension), curative treatments including surgical resection, liver transplantation, or percutaneous ablation are ablation are
recommended.TACE
recommended. TACEisisindicated
indicatedfor
forintermediate-stage
intermediate-stage(BCLC
(BCLCB)B)disease
diseasewith
withmultifocal
multifocaltumors
tumorswithout
without
vascularinvasion
vascular invasionororextrahepatic
extrahepaticspread.
spread.Systemic
Systemicchemotherapy
chemotherapyisisreserved
reservedfor
foradvanced
advanceddisease.
disease.
Q4 Question 4 of 50
A neonate is born with ambiguous genitalia, webbed neck, short stature, and a broad chest with widely
spaced nipples. Karyotype analysis reveals 45,X. The pediatrician suspects Turner syndrome. Which
cardiac anomaly has the highest prevalence in this chromosomal disorder and requires lifelong
surveillance with echocardiography?
A. Tetralogy of Fallot
B. Coarctation of the aorta
C. Bicuspid aortic valve
D. Patent ductus arteriosus
Correct Answer: C
Rationale:
Rationale:
Bicuspidaortic
Bicuspid aorticvalve
valveisisthe
themost
mostcommon
commoncardiovascular
cardiovascularanomaly
anomalyininTurner
Turnersyndrome,
syndrome,occurring
occurringininapproximately
approximately
30%ofofaffected
30% affectedindividuals.
individuals.Coarctation
Coarctationofofthe
theaorta
aortaoccurs
occursinin10-20%.
10-20%.Both
Bothrequire
requireearly
earlyscreening
screeningandandlifelong
lifelong
cardiovascularsurveillance.
cardiovascular surveillance.Tetralogy
TetralogyofofFallot
Fallotisismore
morecharacteristic
characteristicofofDiGeorge
DiGeorgesyndrome
syndrome(22q11.2
(22q11.2deletion),
deletion),
andPDA,
and PDA,though
thoughseen
seenininTurner
Turnersyndrome,
syndrome,isisless
lesscommon
commonthanthanbicuspid
bicuspidvalve.
valve.
WGU D027 -- 2026/2027 | Passing Score: 80% | Page 3 of 27
OBJECTIVE ASSESSMENT - EXAM
WGU D027 OA Exam Advanced
Pathopharmacological Foundations
Tested Questions (Latest 2026/2027)
and Verified Rationalized Answers
Advanced Pathopharmacological Foundations | 2026/2027 Edition
50 100% 2026/2027
QUESTIONS VERIFIED ANSWERS EDITION
TOPICS COVERED
Cellular Biology & Genetics Neoplasia & Cancer Pharmacology
Cardiovascular Pathopharmacology Respiratory Pharmacology
Endocrine & Metabolic Disorders GI, Renal & Hematologic Systems
COVER PAGE - 1
, SECTION 1 | Cellular Biology, Genetics, and Neoplasia | Q1-Q10 | WGU D027 2026/2027
Q1 Question 1 of 50
A 58-year-old patient with a 30 pack-year smoking history presents with a persistent cough,
hemoptysis, and an 8 kg weight loss over three months. Chest CT reveals a 3.2 cm spiculated mass in
the right upper lobe with mediastinal lymphadenopathy. The oncologist orders molecular testing to
guide targeted therapy selection. Which genetic alteration is most commonly associated with
adenocarcinoma of the lung and would indicate eligibility for epidermal growth factor receptor (EGFR)
tyrosine kinase inhibitor therapy?
A. KRAS G12C mutation
B. EGFR exon 19 deletion or L858R mutation
C. BRAF V600E mutation
D. ROS1 gene rearrangement
Correct Answer: B
Rationale:
Rationale:
EGFRexon
EGFR exon19
19deletions
deletionsand
andL858R
L858Rpoint
pointmutations
mutationsarearethe
themost
mostcommon
commonactivating
activatingEGFR
EGFRmutations
mutationsininlung
lung
adenocarcinoma,occurring
adenocarcinoma, occurringininapproximately
approximately10-15%
10-15%ofofNSCLC
NSCLCcases
casesininWestern
Westernpopulations
populationsandandupuptoto40-50%
40-50%
ininAsian
Asianpopulations.
populations.These
Thesemutations
mutationsconfer
confersensitivity
sensitivitytotoEGFR
EGFRtyrosine
tyrosinekinase
kinaseinhibitors
inhibitorssuch
suchasasosimertinib.
osimertinib.
KRASmutations
KRAS mutationsarearecommon
commonbut butdo
donot
notpredict
predictEGFR
EGFRTKI TKIresponse;
response;BRAF
BRAFandandROS1
ROS1alterations
alterationsare
areless
less
commonand
common andindicate
indicatedifferent
differenttargeted
targetedtherapies.
therapies.
Q2 Question 2 of 50
A 45-year-old woman with a family history of breast and ovarian cancer undergoes genetic counseling.
Her mother and maternal aunt both developed breast cancer before age 50. The geneticist explains
that BRCA1 and BRCA2 are tumor suppressor genes involved in DNA double-strand break repair.
Which inheritance pattern is characteristic of hereditary breast and ovarian cancer syndrome caused
by BRCA1/BRCA2 mutations?
A. Autosomal recessive
B. Autosomal dominant
C. X-linked dominant
D. Mitochondrial inheritance
Correct Answer: B
Rationale:
Rationale:
BRCA1and
BRCA1 andBRCA2
BRCA2mutations
mutationsfollow
followan
anautosomal
autosomaldominant
dominantinheritance
inheritancepattern,
pattern,meaning
meaningaasingle
singlemutated
mutatedallele
allele
isissufficient
sufficienttotoconfer
confersignificantly
significantlyincreased
increasedcancer
cancerrisk.
risk.Each
Eachoffspring
offspringofofan
anaffected
affectedparent
parenthas
hasaa50%
50%chance
chanceofof
inheritingthe
inheriting themutation.
mutation.X-linked
X-linkeddominant
dominantand
andmitochondrial
mitochondrialpatterns
patternsare
arenotnotassociated
associatedwith
withBRCA
BRCAmutations,
mutations,
andautosomal
and autosomalrecessive
recessiveinheritance
inheritancedoes
doesnot
notapply
applytotothese
thesetumor
tumorsuppressor
suppressorgenes.
genes.
WGU D027 -- 2026/2027 | Passing Score: 80% | Page 2 of 27
, Q3 Question 3 of 50
A 62-year-old man with chronic hepatitis C infection is diagnosed with hepatocellular carcinoma (HCC).
The tumor measures 4.5 cm with no vascular invasion and no extrahepatic spread. According to the
Barcelona Clinic Liver Cancer (BCLC) staging system, which treatment approach is most appropriate
for a patient with early-stage HCC and preserved liver function (Child-Pugh A)?
A. Transarterial chemoembolization (TACE)
B. Systemic chemotherapy with cisplatin and gemcitabine
C. Best supportive care only
D. Surgical resection or liver transplantation
Correct Answer: D
Rationale:
Rationale:
ForBCLC
For BCLCstage
stage0-A
0-AHCC
HCC(single
(singletumor
tumorororup uptotothree
threenodules
nodulesless
lessthan
than33cm,
cm,preserved
preservedliver
liverfunction,
function,no
noportal
portal
hypertension), curative treatments including surgical resection, liver transplantation, or percutaneous
hypertension), curative treatments including surgical resection, liver transplantation, or percutaneous ablation are ablation are
recommended.TACE
recommended. TACEisisindicated
indicatedfor
forintermediate-stage
intermediate-stage(BCLC
(BCLCB)B)disease
diseasewith
withmultifocal
multifocaltumors
tumorswithout
without
vascularinvasion
vascular invasionororextrahepatic
extrahepaticspread.
spread.Systemic
Systemicchemotherapy
chemotherapyisisreserved
reservedfor
foradvanced
advanceddisease.
disease.
Q4 Question 4 of 50
A neonate is born with ambiguous genitalia, webbed neck, short stature, and a broad chest with widely
spaced nipples. Karyotype analysis reveals 45,X. The pediatrician suspects Turner syndrome. Which
cardiac anomaly has the highest prevalence in this chromosomal disorder and requires lifelong
surveillance with echocardiography?
A. Tetralogy of Fallot
B. Coarctation of the aorta
C. Bicuspid aortic valve
D. Patent ductus arteriosus
Correct Answer: C
Rationale:
Rationale:
Bicuspidaortic
Bicuspid aorticvalve
valveisisthe
themost
mostcommon
commoncardiovascular
cardiovascularanomaly
anomalyininTurner
Turnersyndrome,
syndrome,occurring
occurringininapproximately
approximately
30%ofofaffected
30% affectedindividuals.
individuals.Coarctation
Coarctationofofthe
theaorta
aortaoccurs
occursinin10-20%.
10-20%.Both
Bothrequire
requireearly
earlyscreening
screeningandandlifelong
lifelong
cardiovascularsurveillance.
cardiovascular surveillance.Tetralogy
TetralogyofofFallot
Fallotisismore
morecharacteristic
characteristicofofDiGeorge
DiGeorgesyndrome
syndrome(22q11.2
(22q11.2deletion),
deletion),
andPDA,
and PDA,though
thoughseen
seenininTurner
Turnersyndrome,
syndrome,isisless
lesscommon
commonthanthanbicuspid
bicuspidvalve.
valve.
WGU D027 -- 2026/2027 | Passing Score: 80% | Page 3 of 27
