COMSAE Phase 3 Form CSA 122 Advanced
Clinical Synthesis Exam Practice Questions &
[Verified Answers], Plus Explained
Rationales|2026 Latest Update| Instant
Download PDF
1. A 68-year-old man with hypertension presents with sudden
severe chest pain radiating to his back. Blood pressure is 88/54
mmHg in the right arm and 120/70 mmHg in the left arm. Chest X-
ray shows widened mediastinum. What is the most likely
diagnosis?
A. Acute myocardial infarction
B. Pulmonary embolism
C. Aortic dissection
D. Pericarditis
Answer: C. Aortic dissection
Rationale: The combination of abrupt tearing chest pain, pulse/BP
differential between arms, and widened mediastinum strongly
suggests aortic dissection. Immediate management involves
stabilization and urgent imaging/surgical consultation.
2. A 55-year-old woman with type 2 diabetes presents with fever,
flank pain, and dysuria. Urinalysis shows nitrites and leukocyte
esterase. CT demonstrates dilation of the renal pelvis. Which
diagnosis is most likely?
,A. Acute cystitis
B. Pyelonephritis with obstruction
C. Nephrotic syndrome
D. Renal cell carcinoma
Answer: B. Pyelonephritis with obstruction
Rationale: Fever, flank pain, and urinary findings indicate upper
urinary tract infection. Hydronephrosis suggests obstruction, which
requires urgent decompression in addition to antibiotics.
3. A 42-year-old man develops progressive difficulty swallowing
solids and liquids. Endoscopy shows a dilated esophagus without
mechanical obstruction. What is the most likely diagnosis?
A. Esophageal carcinoma
B. Achalasia
C. GERD
D. Esophageal stricture
Answer: B. Achalasia
Rationale: Achalasia results from failure of lower esophageal
sphincter relaxation and loss of peristalsis, causing dysphagia to both
solids and liquids.
4. A patient taking warfarin presents with an INR of 9.5 and active
gastrointestinal bleeding. What is the best next step?
A. Stop warfarin only
B. Give vitamin K and prothrombin complex concentrate
C. Administer aspirin
D. Increase dietary vitamin K
,Answer: B. Give vitamin K and prothrombin complex concentrate
Rationale: Severe warfarin-associated bleeding requires rapid
reversal. PCC provides immediate clotting factor replacement while
vitamin K restores endogenous production.
5. A 23-year-old woman presents with fatigue, weight gain,
constipation, and cold intolerance. Laboratory studies show
elevated TSH and decreased free T4. What is the diagnosis?
A. Hyperthyroidism
B. Primary hypothyroidism
C. Secondary adrenal insufficiency
D. Cushing syndrome
Answer: B. Primary hypothyroidism
Rationale: Elevated TSH with low free T4 indicates thyroid gland
failure, most commonly due to autoimmune thyroiditis.
6. A 70-year-old man with COPD presents with worsening dyspnea
and increased sputum production. Which treatment is most
appropriate?
A. Long-term antibiotics only
B. Bronchodilators, corticosteroids, and antibiotics when indicated
C. Immediate intubation
D. Diuretics
Answer: B. Bronchodilators, corticosteroids, and antibiotics when
indicated
, Rationale: Acute COPD exacerbations are treated with short-acting
bronchodilators, systemic steroids, and antibiotics if bacterial
infection signs are present.
7. A 30-year-old woman presents with amenorrhea and
galactorrhea. Pregnancy test is negative. What is the next best
diagnostic test?
A. Pelvic ultrasound
B. Serum prolactin level
C. Endometrial biopsy
D. FSH level
Answer: B. Serum prolactin level
Rationale: Galactorrhea with amenorrhea suggests
hyperprolactinemia. Prolactin measurement is the next appropriate
evaluation.
8. A 64-year-old smoker has painless gross hematuria. What is the
most likely diagnosis?
A. Kidney stone
B. Bladder cancer
C. Pyelonephritis
D. Benign prostatic hyperplasia
Answer: B. Bladder cancer
Rationale: Painless hematuria in an older smoker is classic for
urothelial carcinoma until proven otherwise.
Clinical Synthesis Exam Practice Questions &
[Verified Answers], Plus Explained
Rationales|2026 Latest Update| Instant
Download PDF
1. A 68-year-old man with hypertension presents with sudden
severe chest pain radiating to his back. Blood pressure is 88/54
mmHg in the right arm and 120/70 mmHg in the left arm. Chest X-
ray shows widened mediastinum. What is the most likely
diagnosis?
A. Acute myocardial infarction
B. Pulmonary embolism
C. Aortic dissection
D. Pericarditis
Answer: C. Aortic dissection
Rationale: The combination of abrupt tearing chest pain, pulse/BP
differential between arms, and widened mediastinum strongly
suggests aortic dissection. Immediate management involves
stabilization and urgent imaging/surgical consultation.
2. A 55-year-old woman with type 2 diabetes presents with fever,
flank pain, and dysuria. Urinalysis shows nitrites and leukocyte
esterase. CT demonstrates dilation of the renal pelvis. Which
diagnosis is most likely?
,A. Acute cystitis
B. Pyelonephritis with obstruction
C. Nephrotic syndrome
D. Renal cell carcinoma
Answer: B. Pyelonephritis with obstruction
Rationale: Fever, flank pain, and urinary findings indicate upper
urinary tract infection. Hydronephrosis suggests obstruction, which
requires urgent decompression in addition to antibiotics.
3. A 42-year-old man develops progressive difficulty swallowing
solids and liquids. Endoscopy shows a dilated esophagus without
mechanical obstruction. What is the most likely diagnosis?
A. Esophageal carcinoma
B. Achalasia
C. GERD
D. Esophageal stricture
Answer: B. Achalasia
Rationale: Achalasia results from failure of lower esophageal
sphincter relaxation and loss of peristalsis, causing dysphagia to both
solids and liquids.
4. A patient taking warfarin presents with an INR of 9.5 and active
gastrointestinal bleeding. What is the best next step?
A. Stop warfarin only
B. Give vitamin K and prothrombin complex concentrate
C. Administer aspirin
D. Increase dietary vitamin K
,Answer: B. Give vitamin K and prothrombin complex concentrate
Rationale: Severe warfarin-associated bleeding requires rapid
reversal. PCC provides immediate clotting factor replacement while
vitamin K restores endogenous production.
5. A 23-year-old woman presents with fatigue, weight gain,
constipation, and cold intolerance. Laboratory studies show
elevated TSH and decreased free T4. What is the diagnosis?
A. Hyperthyroidism
B. Primary hypothyroidism
C. Secondary adrenal insufficiency
D. Cushing syndrome
Answer: B. Primary hypothyroidism
Rationale: Elevated TSH with low free T4 indicates thyroid gland
failure, most commonly due to autoimmune thyroiditis.
6. A 70-year-old man with COPD presents with worsening dyspnea
and increased sputum production. Which treatment is most
appropriate?
A. Long-term antibiotics only
B. Bronchodilators, corticosteroids, and antibiotics when indicated
C. Immediate intubation
D. Diuretics
Answer: B. Bronchodilators, corticosteroids, and antibiotics when
indicated
, Rationale: Acute COPD exacerbations are treated with short-acting
bronchodilators, systemic steroids, and antibiotics if bacterial
infection signs are present.
7. A 30-year-old woman presents with amenorrhea and
galactorrhea. Pregnancy test is negative. What is the next best
diagnostic test?
A. Pelvic ultrasound
B. Serum prolactin level
C. Endometrial biopsy
D. FSH level
Answer: B. Serum prolactin level
Rationale: Galactorrhea with amenorrhea suggests
hyperprolactinemia. Prolactin measurement is the next appropriate
evaluation.
8. A 64-year-old smoker has painless gross hematuria. What is the
most likely diagnosis?
A. Kidney stone
B. Bladder cancer
C. Pyelonephritis
D. Benign prostatic hyperplasia
Answer: B. Bladder cancer
Rationale: Painless hematuria in an older smoker is classic for
urothelial carcinoma until proven otherwise.
