Lectus

A 42-year-old man presents to the emergency department for dizziness and headache that started after a stressful event at work. He reports that his face often becomes swollen, and he occasionally has difficulty breathing when this happens. His family history is significant for his father, who died of a stroke, and his mother, who has had similar facial swelling several times. The patient’s blood pressure is 170/80 mm Hg. On physical examination, he appears well, and his exam is unremarkable. Based on his most likely diagnosis, which of the following medications is contraindicated?Deselect Answer

A group of public health experts wanted to explore the relationships between the quantity of SARS-COV-2 virus and various pharmaceutical drugs by sampling the influent of a wastewater treatment facility. The Pearson correlation coefficient between the quantity of virus and the concentration of one targeted drug was calculated as -0.11, with a p-value of 0.006 and a 95% confidence interval = [-0.198, -0.0225]. Which of the following statements is the best interpretation of these findings?Deselect Answer

A 12-year-old boy who was admitted to the intensive care unit one day ago for severe pneumonia suddenly develops hypotension. He was started on empiric antibiotics, and his blood culture reports are pending. According to the nurse, the patient was doing fine until his blood pressure suddenly dropped. His blood pressure is 88/58 mm Hg, temperature is 39.4°C (103.0°F), pulse is 120/min, and respirations are 24/min. His limbs feel warm. The resident physician decides to start him on intravenous vasopressors, as the blood pressure is not responding to intravenous fluids. The on-call intensivist suspects shock due to a bacterial toxin. What is the mechanism of action of the toxin most likely involved in the pathogenesis of this patient’s condition?Deselect Answer

A 45-year-old farmer in Colorado presents to the emergency department in late summer with a 3-day history of high fever, severe headache, and altered mental status. His wife reports that he has been working long hours in the fields and frequently sleeps in a barn near irrigated pastures. He appears disoriented, and physical examination is significant for nuchal rigidity. Lumbar puncture shows pleocytosis with lymphocytic predominance. The working diagnosis is Western equine encephalitis. Which of the following best describes the typical transmission cycle of this pathogen?Deselect Answer