APEA 3P COMPREHENSIVE EXAM PRACTICE QUESTIONS ADVANCED PATHOPHYSIOLOGY, ADVANCED PHARMACOLOGY, ADVANCED PHYSICAL ASSESSMENT, DIFFERENTIAL DIAGNOSIS, CLINICAL DECISION-MAKING, DIAGNOSTIC REASONING, PATIENT ASSESSMENT, EVIDENCE-BASED PRACTICE

APEA 3P COMPREHENSIVE EXAM PRACTICE QUESTIONS ADVANCED PATHOPHYSIOLOGY, ADVANCED PHARMACOLOGY, ADVANCED PHYSICAL ASSESSMENT, DIFFERENTIAL DIAGNOSIS, CLINICAL DECISION-MAKING, DIAGNOSTIC REASONING, PATIENT ASSESSMENT, EVIDENCE-BASED PRACTICE Question 1: A 65-year-old male with a 40-pack-year smoking history presents with a 2-month history of hoarseness and a persistent sore throat. He reports occasional blood-tinged sputum. On examination, a left-sided vocal cord paralysis is noted. Which of the following is the most likely underlying diagnosis? A. Laryngitis B. Vocal cord nodule C. Laryngeal carcinoma D. Gastroesophageal reflux disease CORRECT ANSWER: C. Laryngeal carcinoma Rationale: Hoarseness lasting 3 weeks in a smoker with vocal cord paralysis suggests laryngeal carcinoma until proven otherwise. The recurrent laryngeal nerve involvement causes vocal cord paralysis. Laryngitis and GERD typically do not cause paralysis. Vocal cord nodules are benign and associated with voice overuse. ________________________________________ Question 2: A 32-year-old pregnant woman at 28 weeks gestation presents with sudden onset of severe, generalized abdominal pain and vaginal bleeding. On examination, the uterus is firm and tender. Fetal heart tones are difficult to obtain. What is the most likely diagnosis? A. Placenta previa B. Abruptio placentae C. Uterine rupture D. Preterm labor CORRECT ANSWER: B. Abruptio placentae Rationale: Abruptio placentae presents with sudden abdominal pain, uterine tenderness, and a firm, tense uterus. Vaginal bleeding may be present but can be concealed. This is a medical emergency. Placenta previa typically presents with painless bleeding. Uterine rupture is less common and usually associated with previous uterine surgery. ________________________________________ Question 3: A 58-year-old female with type 2 diabetes presents with a 3-day history of right lower quadrant abdominal pain, fever, and nausea. On examination, she has rebound tenderness and guarding. Laboratory tests show WBC 18,000/mm³. Which of the following is the most appropriate next step? A. Outpatient oral antibiotics B. CT scan of the abdomen and pelvis with contrast C. Ultrasound of the abdomen D. Laparoscopic appendectomy without imaging CORRECT ANSWER: B. CT scan of the abdomen and pelvis with contrast Rationale: In adults with suspected appendicitis, CT with contrast is the most sensitive and specific imaging modality, especially in patients with atypical presentations or confounding factors like diabetes. Ultrasound is preferred in children and pregnant women. ________________________________________ Question 4: A 70-year-old male presents with progressive memory loss, difficulty finding words, and personality changes over the past 18 months. His wife reports he has become apathetic and occasionally has visual hallucinations. Mini-Mental State Examination score is 18/30. What is the most likely diagnosis? A. Alzheimer's disease B. Vascular dementia C. Dementia with Lewy bodies D. Frontotemporal dementia CORRECT ANSWER: C. Dementia with Lewy bodies Rationale: Dementia with Lewy bodies is characterized by progressive cognitive decline, visual hallucinations, fluctuating cognition, and Parkinsonian features. Alzheimer's typically does not have early visual hallucinations. Vascular dementia has a stepwise progression. Frontotemporal dementia presents with personality and behavioral changes before memory loss. ________________________________________ Question 5: A 45-year-old male with a history of alcohol use disorder presents with acute onset of severe epigastric pain radiating to his back. He is leaning forward in the fetal position. Serum amylase is 850 U/L and lipase is 1200 U/L. What is the most appropriate initial treatment? A. NPO status and IV fluids B. Oral pancreatic enzyme supplements C. ERCP D. Octreotide therapy CORRECT ANSWER: A. NPO status and IV fluids Rationale: Acute pancreatitis is treated conservatively with NPO status to rest the pancreas, aggressive IV fluid resuscitation, and pain management. ERCP is indicated for biliary pancreatitis with obstruction. Octreotide is used for specific situations like pancreatic fistulas. Enzyme supplements are for chronic pancreatitis. ________________________________________ Question 6: A 22-year-old female presents with a sudden onset of severe, unilateral headache accompanied by ipsilateral lacrimation, nasal congestion, and ptosis. The headache lasts approximately 30 minutes and occurs at the same time each night. What is the most likely diagnosis? A. Migraine with aura B. Tension-type headache C. Cluster headache D. Sinus headache CORRECT ANSWER: C. Cluster headache Rationale: Cluster headaches are characterized by severe, unilateral periorbital pain with autonomic symptoms (lacrimation, nasal congestion, ptosis). They have a circadian pattern and occur in clusters. Migraines have a pulsatile quality with nausea and photophobia. Tension headaches are bilateral and band-like. ________________________________________ Question 7: A 67-year-old female presents with a 3-month history of progressive shortness of breath, dry cough, and clubbing of her fingers. Chest X-ray shows bilateral interstitial infiltrates. She has a history of asbestos exposure 30 years ago. What is the most likely diagnosis? A. Asbestosis B. Mesothelioma C. Silicosis D. Coal worker's pneumoconiosis CORRECT ANSWER: A. Asbestosis Rationale: Asbestosis presents with progressive dyspnea, dry cough, and clubbing after remote asbestos exposure. The latency period is typically 20-40 years. Mesothelioma presents with pleural effusion and chest pain. Silicosis is associated with sandblasting and mining. Coal worker's pneumoconiosis is associated with coal dust exposure. ________________________________________ Question 8: A 55-year-old male with hypertension and hyperlipidemia presents with sudden onset of severe chest pain that is sharp and tearing in quality, radiating to his back between the shoulder blades. Blood pressure is 160/95 mmHg in the right arm and 110/70 mmHg in the left arm. What is the most likely diagnosis? A. Acute myocardial infarction B. Pulmonary embolism C. Aortic dissection D. Pericarditis