A 51-year-old woman is brought to the emergency department after not being able to urinate for the past 12 hours. She also complains of a headache that is sharp in nature, 9/10, without radiation, and associated with nausea and vomiting. She neither smokes cigarettes nor drinks alcohol. She complains that her fingers have become numb and very painful on exposure to cold weather during the last few months. She has also noticed her fingers change color from blue to pale to red on cold exposure. Her face looks shiny with thickened, wrinkle-free skin. She has had joint pain and stiffness for the last 20 years. She takes over-the-counter omeprazole for heartburn, which she says improves her symptoms. She has unintentionally lost 9 kg (20 lb) in the last 6 months. She has no previous history of diabetes, hypertension, chest pain, orthopnea, or paroxysmal nocturnal dyspnea. Her mother has rheumatoid arthritis for which she takes methotrexate, and her father takes medications for hypertension and hypercholesterolemia. Her temperature is 37°C (98.6°F), blood pressure is 210/120 mm Hg, pulse is 102/min, respiratory rate is 18/min, and BMI is 22 kg/m2. Laboratory test Complete blood count: Hemoglobin 9.5 g/dL Leukocytes 15,500/mm3 Platelets 90,000/mm3 Serum haptoglobin 20 mg/dL (30–200 mg/dL) Serum creatinine 2.3 mg/dL Blood urea nitrogen 83.5 mg/dL The peripheral blood film of the patient shows the following. Which of the following would be the most appropriate treatment for this patient?
ANitroprusside
BRenal transplantation
CRamipril
DDialysis
ELabetalol
A 60-year-old African American woman presents to her family physician with shortness of breath on exertion. She also describes shortness of breath when she lies down to go to bed at night, as well as recent swelling in her ankles. Past medical history is significant for long-standing hypertension, for which she takes amlodipine and lisinopril. Her temperature is 36.8°C (98.2°F), the heart rate is 90/min, the respiratory rate is 15/min, and the blood pressure is 135/80 mm Hg. The physical exam is significant for JVD, lower extremity pitting edema, laterally displaced PMI, left ventricular heave, bilateral pulmonary crackles, and an S4 heart sound. Chest X-ray demonstrates pulmonary vascular congestion, Kerley B lines, and cardiomegaly. Echocardiogram demonstrates a preserved ejection fraction. Kidney biopsy would likely demonstrate which of the following?
AThinning of the intima and media
BOnion-skinning
CNodular sclerosis
DIntimal thickening and medial hypertrophy
EFibrinoid necrosis
A 47-year-old woman comes to the physician because of a 1-month history of progressive weakness. She has had increased difficulty climbing stairs and standing from a seated position. She takes no medications. Neurologic examination shows weakness of the proximal muscles. Skin examination shows diffuse erythema of the upper back, posterior neck, and shoulders. A photograph of the patient's eye is shown. Antibodies against which of the following are most likely to be present in this patient?
AHistones
BMi-2 protein
CCentromeres
DLa protein
EScl-70 protein
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