rAtioNAles ACtuAl exAm 2026/2027 – ComPlete exAm-
style QuestioNs with DetAileD rAtioNAles | PAss
guArANteeD – A+ grADeD
Section 1: Assessment & Diagnosis (Questions 1-50)
**Q1.** A 52-year-old male presents with crushing substernal chest pain
radiating to his left arm. He is diaphoretic and nauseous. What is the most
appropriate initial diagnostic test?
A. Exercise stress test
B. Chest X-ray
C. Computed Tomography (CT) Angiography of the chest
D. Electrocardiogram (ECG)
Correct Answer: D
Rationale: The patient's presentation is classic for Acute Coronary Syndrome
(ACS). The ECG is the immediate first-line diagnostic test to identify ST-elevation
myocardial infarction (STEMI), which dictates immediate reperfusion therapy
(PCI). Exercise stress testing is contraindicated in an acute setting; CT
Angiography is used for low-risk patients with negative enzymes and ECGs to
rule out pulmonary embolism or aortic dissection. Chest X-ray will not diagnose
ischemia.
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**Q2.** A 65-year-old female patient reports difficulty sleeping, low energy, and
a loss of interest in her hobbies for the past two months. She has lost 10 pounds
,unintentionally. She denies suicidal ideation. Which screening tool is most
appropriate to administer?
A. CAGE questionnaire
B. PHQ-9 (Patient Health Questionnaire-9)
C. Mini-Mental State Examination (MMSE)
D. Geriatric Depression Scale (GDS)
Correct Answer: B
Rationale: The PHQ-9 is a validated screening tool for depression that assesses
symptoms based on DSM-5 criteria over the past two weeks. The CAGE (A)
screens for alcohol use disorder. The MMSE (C) screens for cognitive
impairment. The GDS (D) is also used for depression in older adults but the PHQ-
9 is more commonly used across all adult ages. Both B and D could be correct
for an older adult, but PHQ-9 is the standard for depression screening in primary
care.
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**Q3.** A 45-year-old female presents with fatigue, weight gain, constipation,
and cold intolerance. On examination, she has dry skin, bradycardia, and a
delayed relaxation phase of deep tendon reflexes. Which laboratory test is most
specific for the suspected diagnosis?
A. Free T4
B. TSH (Thyroid Stimulating Hormone)
C. Thyroid peroxidase antibodies
D. Serum cholesterol
Correct Answer: B
,Rationale: The patient's symptoms are consistent with hypothyroidism. TSH is
the most sensitive and specific initial test for thyroid dysfunction. An elevated
TSH indicates primary hypothyroidism. Free T4 (A) confirms the diagnosis but
TSH is more sensitive. Antibodies (C) are used to diagnose autoimmune
(Hashimoto's) thyroiditis but are not the initial specific test. Cholesterol (D) may
be elevated but is non-specific.
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**Q4.** A 70-year-old male presents with a several-month history of urinary
hesitancy, weak stream, and nocturia. Digital rectal exam reveals a
symmetrically enlarged, smooth, non-tender prostate. Prostate-specific antigen
(PSA) is 2.5 ng/mL. What is the most likely diagnosis?
A. Prostate cancer
B. Benign prostatic hyperplasia (BPH)
C. Prostatitis
D. Urethral stricture
Correct Answer: B
Rationale: BPH presents with lower urinary tract symptoms (hesitancy, weak
stream, nocturia) and a symmetrically enlarged, smooth, non-tender prostate on
DRE. Prostate cancer (A) typically presents with an irregular, hard, nodular
prostate. Prostatitis (C) presents with tender prostate and often fever/dysuria.
Urethral stricture (D) may cause similar symptoms but DRE is normal.
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**Q5.** A 28-year-old female presents with dysuria, urinary frequency, and
suprapubic discomfort. Urinalysis shows positive leukocyte esterase and
nitrites. What is the most appropriate initial management?
, A. Urine culture and sensitivity before antibiotics
B. Empiric antibiotics and urine culture
C. Renal ultrasound
D. Cystoscopy
Correct Answer: B
Rationale: The patient has uncomplicated cystitis. Empiric antibiotics (e.g.,
nitrofurantoin, trimethoprim-sulfamethoxazole) should be started based on
symptoms and urinalysis. Urine culture (A) may be sent but treatment should not
be delayed. Renal ultrasound (C) and cystoscopy (D) are not indicated for
uncomplicated UTI.
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**Q6.** A 55-year-old male with a 30-pack-year smoking history presents with a
new cough, hemoptysis, and unintentional weight loss. Which initial imaging
study is most appropriate?
A. Chest X-ray
B. CT chest with contrast
C. PET scan
D. MRI chest
Correct Answer: A
Rationale: Chest X-ray is the initial imaging study for a patient with respiratory
symptoms and risk factors for lung cancer. If abnormal, CT chest (B) would be
the next step. PET scan (C) is used for staging after diagnosis. MRI (D) is not
used for initial lung cancer evaluation.