COMSAE Phase 2 Form 110 Exam
Practice Questions And Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A | Instant Download Pdf
1. A 67-year-old man presents with chest pain radiating to the left arm
and diaphoresis. ECG shows ST elevation in leads II, III, and aVF. Which
coronary artery is most likely occluded?
A. Left anterior descending artery
B. Right coronary artery
C. Left circumflex artery
D. Posterior descending artery
B. Right coronary artery
Inferior wall myocardial infarction is most commonly caused by
occlusion of the right coronary artery, which supplies leads II, III, and
aVF.
2. A 25-year-old woman presents with tremor, weight loss, and heat
intolerance. Labs show low TSH and high T3/T4. What is the most
likely diagnosis?
, A. Hashimoto thyroiditis
B. Subacute thyroiditis
C. Graves disease
D. Toxic multinodular goiter
C. Graves disease
Graves disease is an autoimmune condition causing hyperthyroidism
with suppressed TSH and elevated thyroid hormones.
3. A child presents with a “slapped cheek” rash and mild fever. What is
the causative agent?
A. Epstein-Barr virus
B. Parvovirus B19
C. Rubella virus
D. Coxsackievirus
B. Parvovirus B19
Erythema infectiosum is caused by Parvovirus B19 and presents with
a characteristic facial rash.
4. A 60-year-old man with COPD presents with worsening dyspnea. ABG
shows pH 7.32, PaCO₂ 60 mmHg, HCO₃⁻ 32 mEq/L. What is the acid-
base disorder?
A. Acute respiratory acidosis
B. Chronic respiratory acidosis
C. Metabolic alkalosis
D. Respiratory alkalosis
, B. Chronic respiratory acidosis
Elevated CO₂ with compensatory elevated bicarbonate indicates
chronic respiratory acidosis due to COPD.
5. A 30-year-old woman presents with flank pain and hematuria. CT
shows calcium oxalate stones. What is the most likely predisposing
factor?
A. Hypercalcemia
B. Hyperuricosuria
C. Hyperoxaluria
D. Hypocitraturia
C. Hyperoxaluria
Calcium oxalate stones are commonly associated with increased
oxalate excretion in urine.
6. A newborn has failure to pass meconium and abdominal distension.
What is the most likely diagnosis?
A. Pyloric stenosis
B. Hirschsprung disease
C. Meckel diverticulum
D. Intussusception
B. Hirschsprung disease
Absence of ganglion cells in the colon leads to functional obstruction
and failure to pass meconium.
, 7. A patient has macrocytic anemia and glossitis. Which vitamin
deficiency is most likely?
A. Vitamin B6
B. Vitamin B12
C. Iron
D. Folate
B. Vitamin B12
Vitamin B12 deficiency causes megaloblastic anemia and
neurological symptoms.
8. A 45-year-old man has painless jaundice and a mass in the head of the
pancreas. What is the most likely diagnosis?
A. Chronic pancreatitis
B. Pancreatic adenocarcinoma
C. Hepatocellular carcinoma
D. Cholangiocarcinoma
B. Pancreatic adenocarcinoma
Tumors in the pancreatic head often cause obstructive jaundice
without pain early on.
9. A patient presents with tetany and positive Chvostek sign. Which
electrolyte abnormality is present?
A. Hypercalcemia
B. Hypocalcemia
C. Hyperkalemia
Practice Questions And Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A | Instant Download Pdf
1. A 67-year-old man presents with chest pain radiating to the left arm
and diaphoresis. ECG shows ST elevation in leads II, III, and aVF. Which
coronary artery is most likely occluded?
A. Left anterior descending artery
B. Right coronary artery
C. Left circumflex artery
D. Posterior descending artery
B. Right coronary artery
Inferior wall myocardial infarction is most commonly caused by
occlusion of the right coronary artery, which supplies leads II, III, and
aVF.
2. A 25-year-old woman presents with tremor, weight loss, and heat
intolerance. Labs show low TSH and high T3/T4. What is the most
likely diagnosis?
, A. Hashimoto thyroiditis
B. Subacute thyroiditis
C. Graves disease
D. Toxic multinodular goiter
C. Graves disease
Graves disease is an autoimmune condition causing hyperthyroidism
with suppressed TSH and elevated thyroid hormones.
3. A child presents with a “slapped cheek” rash and mild fever. What is
the causative agent?
A. Epstein-Barr virus
B. Parvovirus B19
C. Rubella virus
D. Coxsackievirus
B. Parvovirus B19
Erythema infectiosum is caused by Parvovirus B19 and presents with
a characteristic facial rash.
4. A 60-year-old man with COPD presents with worsening dyspnea. ABG
shows pH 7.32, PaCO₂ 60 mmHg, HCO₃⁻ 32 mEq/L. What is the acid-
base disorder?
A. Acute respiratory acidosis
B. Chronic respiratory acidosis
C. Metabolic alkalosis
D. Respiratory alkalosis
, B. Chronic respiratory acidosis
Elevated CO₂ with compensatory elevated bicarbonate indicates
chronic respiratory acidosis due to COPD.
5. A 30-year-old woman presents with flank pain and hematuria. CT
shows calcium oxalate stones. What is the most likely predisposing
factor?
A. Hypercalcemia
B. Hyperuricosuria
C. Hyperoxaluria
D. Hypocitraturia
C. Hyperoxaluria
Calcium oxalate stones are commonly associated with increased
oxalate excretion in urine.
6. A newborn has failure to pass meconium and abdominal distension.
What is the most likely diagnosis?
A. Pyloric stenosis
B. Hirschsprung disease
C. Meckel diverticulum
D. Intussusception
B. Hirschsprung disease
Absence of ganglion cells in the colon leads to functional obstruction
and failure to pass meconium.
, 7. A patient has macrocytic anemia and glossitis. Which vitamin
deficiency is most likely?
A. Vitamin B6
B. Vitamin B12
C. Iron
D. Folate
B. Vitamin B12
Vitamin B12 deficiency causes megaloblastic anemia and
neurological symptoms.
8. A 45-year-old man has painless jaundice and a mass in the head of the
pancreas. What is the most likely diagnosis?
A. Chronic pancreatitis
B. Pancreatic adenocarcinoma
C. Hepatocellular carcinoma
D. Cholangiocarcinoma
B. Pancreatic adenocarcinoma
Tumors in the pancreatic head often cause obstructive jaundice
without pain early on.
9. A patient presents with tetany and positive Chvostek sign. Which
electrolyte abnormality is present?
A. Hypercalcemia
B. Hypocalcemia
C. Hyperkalemia
