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A 68-year-old male with a history of hypertension, Type 2 diabetes, and rheumatoid arthritis presents with progressive fatigue, diffuse muscle weakness, and a persistent, non-productive cough for 3 months. Initial labs show mild normocytic anemia, elevated inflammatory markers (ESR, CRP), and slightly impaired renal function. Chest X-ray is normal, but a subsequent HRCT chest reveals bilateral ground-glass opacities and interlobular septal thickening. His blood pressure is 150/90 mmHg, and he is on lisinopril, metformin, and methotrexate. What is the most crucial next diagnostic step?
A) Increase methotrexate dose for presumed worsening rheumatoid arthritis.
B) Perform a bronchoscopy with bronchoalveolar lavage (BAL) and biopsy.
C) Initiate empiric broad-spectrum antibiotics for atypical pneumonia.
D) Adjust his antihypertensive medication due to elevated blood pressure.
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A 35-year-old female presents to the ER with sudden onset severe headache, photophobia, and neck stiffness. She has a known history of Ehlers-Danlos Syndrome and polycystic kidney disease. On examination, she is alert but visibly distressed. CT head without contrast shows no acute intracranial hemorrhage. Lumbar puncture reveals xanthochromia, elevated protein, and 500 red blood cells/$\mu L$. Which condition is most strongly suggested, given her history and findings?
A) Migraine with aura.
B) Bacterial meningitis.
C) Subarachnoid hemorrhage from a ruptured aneurysm.
D) Ischemic stroke.
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A 72-year-old female with a history of advanced Alzheimer's disease, heart failure with preserved ejection fraction (HFpEF), and chronic kidney disease stage 4, is admitted with worsening dyspnea and lower extremity edema. She is non-verbal and her daughter holds durable power of attorney for healthcare. The daughter insists on aggressive measures, including intubation if necessary, despite a clear 'Do Not Resuscitate' order in her mother's advanced directive from 5 years ago, prior to severe cognitive decline. What is the most appropriate initial action for the medical team?
A) Immediately follow the daughter's wishes as she is the designated POA.
B) Intubate the patient to stabilize her condition, then discuss further.
C) Initiate a palliative care consult and facilitate a family meeting to discuss the advanced directive and current prognosis.
D) Revoke the daughter's POA due to conflict with the patient's stated wishes.
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A 50-year-old male with a 20-year history of Crohn's disease, currently on infliximab, presents with fever, right lower quadrant pain, and bloody diarrhea. Physical examination reveals tenderness in the right lower quadrant with guarding. Labs show leukocytosis and elevated CRP. CT abdomen/pelvis shows thickening of the terminal ileum, skip lesions, and a new pericecal abscess. What is the most appropriate immediate management strategy?
A) Increase the dose of infliximab.
B) Administer high-dose oral corticosteroids.
C) Initiate broad-spectrum intravenous antibiotics and surgical consultation for drainage.
D) Perform an urgent colonoscopy to assess disease activity.
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A 28-year-old pregnant woman (G1P0, 32 weeks gestation) with poorly controlled gestational diabetes and new-onset preeclampsia (BP 160/110 mmHg, proteinuria) develops sudden, severe epigastric pain radiating to her back. Labs show elevated liver enzymes (AST 300 U/L, ALT 250 U/L), low platelets (80,000/$\mu L$), and elevated lipase (1500 U/L). Fetal monitoring shows reassuring fetal heart tones. What is the most critical next step?
A) Administer IV narcotics for pain control.
B) Initiate magnesium sulfate for seizure prophylaxis and prepare for delivery.
C) Order an abdominal ultrasound to evaluate for gallstones.
D) Administer insulin to control blood glucose levels.
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A 60-year-old male, a heavy smoker with a 40-pack-year history, presents with progressive dyspnea, unintentional weight loss, and new-onset clubbing of the fingers. Pulmonary function tests show a restrictive pattern with severely reduced diffusion capacity (DLCO). A chest CT reveals diffuse interstitial fibrosis with honeycombing, predominantly in the lung bases. He denies any occupational exposures or family history of lung disease. What is the most likely diagnosis?
A) Chronic Obstructive Pulmonary Disease (COPD).
B) Sarcoidosis.
C) Idiopathic Pulmonary Fibrosis (IPF).
D) Hypersensitivity Pneumonitis.
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A 45-year-old woman with a history of systemic lupus erythematosus (SLE) and antiphospholipid syndrome (APS), on chronic anticoagulation with warfarin, presents with acute left-sided weakness and aphasia. Her INR is therapeutic at 2.5. CT perfusion scan shows a large area of cerebral ischemia in the left middle cerebral artery territory with a significant penumbra. She arrives within the therapeutic window for thrombolysis. What is the most appropriate management?
A) Proceed with intravenous thrombolysis (alteplase).
B) Reverse warfarin with Vitamin K and PCC, then consider mechanical thrombectomy.
C) Withhold all acute stroke therapies due to increased bleeding risk from warfarin.
D) Administer aspirin and clopidogrel immediately.
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1. B) Perform a bronchoscopy with bronchoalveolar lavage (BAL) and biopsy. This patient's symptoms, imaging, and elevated inflammatory markers, especially while on methotrexate, strongly suggest methotrexate-induced pneumonitis, an interstitial lung disease. BAL and biopsy are crucial for definitive diagnosis and ruling out other interstitial lung diseases or infections.
2. C) Subarachnoid hemorrhage from a ruptured aneurysm. Ehlers-Danlos Syndrome and polycystic kidney disease are both associated with an increased risk of intracranial aneurysms. The acute headache, neck stiffness, photophobia, and especially the xanthochromia and red blood cells in the CSF, are classic signs of subarachnoid hemorrhage, even with a negative initial CT.
3. C) Initiate a palliative care consult and facilitate a family meeting to discuss the advanced directive and current prognosis. In situations where a patient's advance directive conflicts with a proxy's wishes, the healthcare team's primary responsibility is to honor the patient's documented wishes while engaging the family in a sensitive discussion, clarifying the patient's condition, prognosis, and the implications of the directive. Palliative care can facilitate these difficult conversations.
4. C) Initiate broad-spectrum intravenous antibiotics and surgical consultation for drainage. The presence of an abscess in a Crohn's patient with acute symptoms, fever, and leukocytosis indicates a complicated infection requiring urgent management. Antibiotics are essential, and surgical consultation for drainage is often necessary for pericecal abscesses, which are common complications of Crohn's disease.
5. B) Initiate magnesium sulfate for seizure prophylaxis and prepare for delivery. This patient has HELLP syndrome (Hemolysis, Elevated Liver enzymes, Low Platelets), a severe form of preeclampsia, indicated by the elevated liver enzymes and low platelets, along with her hypertensive state. The epigastric pain is a common symptom of HELLP. Delivery is the definitive treatment, and magnesium sulfate is critical for seizure prophylaxis before and during delivery.
6. C) Idiopathic Pulmonary Fibrosis (IPF). The combination of progressive dyspnea, weight loss, clubbing, restrictive PFTs with low DLCO, and characteristic CT findings (diffuse interstitial fibrosis with honeycombing, predominantly at the bases) in a chronic smoker, without other clear causes, strongly points to IPF. The other options are less likely given the specific findings.
7. B) Reverse warfarin with Vitamin K and PCC, then consider mechanical thrombectomy. While the patient is on warfarin and her INR is therapeutic, standard intravenous thrombolysis (alteplase) is contraindicated due to increased bleeding risk with active anticoagulation. Given the large vessel occlusion (implied by significant penumbra) and potential for good outcome with reperfusion, emergent reversal of anticoagulation followed by mechanical thrombectomy is the most appropriate strategy in this advanced scenario.