COMSAE PHASE 2 FORM 119 EXAM PRACTICE
QUESTIONS AND VERIFIED ANSWERS (PLUS
RATIONALES) 2026-2027 BUNDLE PDF
This premium study guide delivers a comprehensive bank of
high-yield, verified practice questions and answers designed
specifically for the 2026 COMSAE Phase 2 Level 2 Form 119
exam. Every question is paired with a direct answer and an
expertly detailed, bold-italic rationale to guarantee absolute
conceptual mastery across all tested medical specialties. Perfect
for medical students seeking an instant-download PDF to
efficiently secure a high passing score on their upcoming
osteopathic board assessments.
Question 1
A 62-year-old male presents to the emergency department with
severe, sudden-onset, "tearing" chest pain that radiates to his
back between his scapulae. His blood pressure is 180/100 mmHg
in the right arm and 155/85 mmHg in the left arm. A chest X-ray
reveals a widened mediastinum. Which of the following is the
most likely underlying pathophysiology of this condition?
A. Intimal tear creating a false lumen
B. Atherosclerotic plaque rupture with thrombosis
C. Transmural inflammation of the coronary arteries
D. Fluid accumulation within the pericardial sac
,Correct Answer: A. Intimal tear creating a false lumen
Rationale: This patient presents with classic signs of an
acute aortic dissection, characterized by sudden-onset,
tearing chest pain radiating to the back and an asymmetric
blood pressure differential between the upper extremities
(>20 mmHg). The underlying pathophysiology is a tear in the
tunica intima, allowing blood to surge into and split the
tunica media, creating a false lumen. Hypertension is the
most significant risk factor. Plaque rupture (B) causes
myocardial infarction. Coronary artery inflammation (C)
describes vasculitis, and fluid in the pericardial sac (D)
describes cardiac tamponade.
Question 2
A 28-year-old female presents with a 3-month history of
palpitations, heat intolerance, weight loss despite an increased
appetite, and generalized anxiety. On physical examination, she
has a diffuse, non-tender enlargement of the thyroid gland, a fine
tremor of her outstretched hands, and mild exophthalmos. Labs
reveal a suppressed TSH and elevated free T4. Which of the
following antibodies is the most specific diagnostic marker for this
condition?
A. Anti-thyroid peroxidase (anti-TPO) antibodies
B. TSH-receptor antibodies (TRAb)
C. Anti-thyroglobulin (anti-Tg) antibodies
D. Anti-smooth muscle antibodies (ASMA)
Correct Answer: B. TSH-receptor antibodies (TRAb)
,Rationale: The patient exhibits classic clinical signs and
laboratory findings of Graves' disease (hyperthyroidism).
TSH-receptor antibodies (TRAb), also known as thyroid-
stimulating immunoglobulins (TSI), mimic TSH by binding to
and activating the TSH receptor, causing diffuse thyroid
hyperplasia and excessive thyroid hormone production. Anti-
TPO (A) and anti-Tg (C) are highly associated with
Hashimoto's thyroiditis (hypothyroidism). ASMA (D) is a
marker for autoimmune hepatitis.
Question 3
A 54-year-old male with a severe history of chronic alcohol use
disorder is brought to the emergency department by emergency
medical services. He is disoriented and uncooperative. On
physical examination, you note horizontal nystagmus, restricted
lateral gaze bilaterally, and a wide-based, ataxic gait. Which of the
following is the most critical next step in managing this patient?
A. Administer a rapid bolus of intravenous 50% dextrose
B. Administer intravenous thiamine followed by intravenous
dextrose
C. Obtain an emergent CT scan of the head without contrast
D. Administer a high-dose intravenous infusion of haloperidol
Correct Answer: B. Administer intravenous thiamine followed
by intravenous dextrose
Rationale: This patient presents with the classic triad of
Wernicke encephalopathy: encephalopathy (confusion),
oculomotor dysfunction (nystagmus, ophthalmoplegia), and
gait ataxia. This condition is caused by a severe deficiency of
, thiamine (vitamin B1), frequently seen in chronic alcohol use.
Administering glucose/dextrose before thiamine (A) can
rapidly deplete remaining thiamine stores and precipitate or
worsen irreversible Korsakoff syndrome. Imaging (C) may be
needed later, but standard stabilization must occur first.
Haloperidol (D) is contraindicated as it lowers the seizure
threshold in alcohol withdrawal.
Question 4
A 68-year-old male presents with a 4-month history of progressive
difficulty swallowing. He notes that initially, he had trouble
swallowing solid foods like meat and bread, but now he is also
having difficulty swallowing liquids. He has lost 25 pounds during
this period. He has a 40 pack-year smoking history and a long-
standing history of untreated gastroesophageal reflux disease
(GERD). An upper endoscopy reveals a mass in the distal third of
the esophagus. What is the most likely diagnosis?
A. Esophageal squamous cell carcinoma
B. Esophageal adenocarcinoma
C. Achalasia
D. Zenker's diverticulum
Correct Answer: B. Esophageal adenocarcinoma
Rationale: Progressive dysphagia first to solids then to
liquids, combined with significant weight loss, strongly
indicates an esophageal malignancy. In the Western world,
the most common type is esophageal adenocarcinoma,
which typically arises in the distal third of the esophagus as
a consequence of chronic GERD leading to Barrett’s
QUESTIONS AND VERIFIED ANSWERS (PLUS
RATIONALES) 2026-2027 BUNDLE PDF
This premium study guide delivers a comprehensive bank of
high-yield, verified practice questions and answers designed
specifically for the 2026 COMSAE Phase 2 Level 2 Form 119
exam. Every question is paired with a direct answer and an
expertly detailed, bold-italic rationale to guarantee absolute
conceptual mastery across all tested medical specialties. Perfect
for medical students seeking an instant-download PDF to
efficiently secure a high passing score on their upcoming
osteopathic board assessments.
Question 1
A 62-year-old male presents to the emergency department with
severe, sudden-onset, "tearing" chest pain that radiates to his
back between his scapulae. His blood pressure is 180/100 mmHg
in the right arm and 155/85 mmHg in the left arm. A chest X-ray
reveals a widened mediastinum. Which of the following is the
most likely underlying pathophysiology of this condition?
A. Intimal tear creating a false lumen
B. Atherosclerotic plaque rupture with thrombosis
C. Transmural inflammation of the coronary arteries
D. Fluid accumulation within the pericardial sac
,Correct Answer: A. Intimal tear creating a false lumen
Rationale: This patient presents with classic signs of an
acute aortic dissection, characterized by sudden-onset,
tearing chest pain radiating to the back and an asymmetric
blood pressure differential between the upper extremities
(>20 mmHg). The underlying pathophysiology is a tear in the
tunica intima, allowing blood to surge into and split the
tunica media, creating a false lumen. Hypertension is the
most significant risk factor. Plaque rupture (B) causes
myocardial infarction. Coronary artery inflammation (C)
describes vasculitis, and fluid in the pericardial sac (D)
describes cardiac tamponade.
Question 2
A 28-year-old female presents with a 3-month history of
palpitations, heat intolerance, weight loss despite an increased
appetite, and generalized anxiety. On physical examination, she
has a diffuse, non-tender enlargement of the thyroid gland, a fine
tremor of her outstretched hands, and mild exophthalmos. Labs
reveal a suppressed TSH and elevated free T4. Which of the
following antibodies is the most specific diagnostic marker for this
condition?
A. Anti-thyroid peroxidase (anti-TPO) antibodies
B. TSH-receptor antibodies (TRAb)
C. Anti-thyroglobulin (anti-Tg) antibodies
D. Anti-smooth muscle antibodies (ASMA)
Correct Answer: B. TSH-receptor antibodies (TRAb)
,Rationale: The patient exhibits classic clinical signs and
laboratory findings of Graves' disease (hyperthyroidism).
TSH-receptor antibodies (TRAb), also known as thyroid-
stimulating immunoglobulins (TSI), mimic TSH by binding to
and activating the TSH receptor, causing diffuse thyroid
hyperplasia and excessive thyroid hormone production. Anti-
TPO (A) and anti-Tg (C) are highly associated with
Hashimoto's thyroiditis (hypothyroidism). ASMA (D) is a
marker for autoimmune hepatitis.
Question 3
A 54-year-old male with a severe history of chronic alcohol use
disorder is brought to the emergency department by emergency
medical services. He is disoriented and uncooperative. On
physical examination, you note horizontal nystagmus, restricted
lateral gaze bilaterally, and a wide-based, ataxic gait. Which of the
following is the most critical next step in managing this patient?
A. Administer a rapid bolus of intravenous 50% dextrose
B. Administer intravenous thiamine followed by intravenous
dextrose
C. Obtain an emergent CT scan of the head without contrast
D. Administer a high-dose intravenous infusion of haloperidol
Correct Answer: B. Administer intravenous thiamine followed
by intravenous dextrose
Rationale: This patient presents with the classic triad of
Wernicke encephalopathy: encephalopathy (confusion),
oculomotor dysfunction (nystagmus, ophthalmoplegia), and
gait ataxia. This condition is caused by a severe deficiency of
, thiamine (vitamin B1), frequently seen in chronic alcohol use.
Administering glucose/dextrose before thiamine (A) can
rapidly deplete remaining thiamine stores and precipitate or
worsen irreversible Korsakoff syndrome. Imaging (C) may be
needed later, but standard stabilization must occur first.
Haloperidol (D) is contraindicated as it lowers the seizure
threshold in alcohol withdrawal.
Question 4
A 68-year-old male presents with a 4-month history of progressive
difficulty swallowing. He notes that initially, he had trouble
swallowing solid foods like meat and bread, but now he is also
having difficulty swallowing liquids. He has lost 25 pounds during
this period. He has a 40 pack-year smoking history and a long-
standing history of untreated gastroesophageal reflux disease
(GERD). An upper endoscopy reveals a mass in the distal third of
the esophagus. What is the most likely diagnosis?
A. Esophageal squamous cell carcinoma
B. Esophageal adenocarcinoma
C. Achalasia
D. Zenker's diverticulum
Correct Answer: B. Esophageal adenocarcinoma
Rationale: Progressive dysphagia first to solids then to
liquids, combined with significant weight loss, strongly
indicates an esophageal malignancy. In the Western world,
the most common type is esophageal adenocarcinoma,
which typically arises in the distal third of the esophagus as
a consequence of chronic GERD leading to Barrett’s
