xujunzju

A town with 1000 citizens has a 10% prevalence of disease X. A screening test for disease …

A 12-year-old boy who recently emigrated from Nigeria presents with a six-month history of…

The oxygen-hemoglobin dissociation curve represents the percent saturation of hemoglo- bin…

A 65-year-old man with a 110-pack-year history of smoking presents to his primary care phy…

A 15-year-old boy with a history of severe asthma presents to the emergency department in …

A 9-month-old girl is found to be anemic. Her mother and several great aunts have a simila…

A previously healthy 25-year-old man presented to the general medicine clinic with a 3-mon…

A 41-year-old man visits his physician because of increasingly painful headaches. CT of th…

A patient is being treated with b-blockers for hypertension. Which of the following descri…

Researchers investigating the development of the idiopathic inflammatory myopathies (IIMs)…

Abstract Background: Haloperidol is frequently used to treat delirium in patients in the i…

A 5-year-old boy from China with a history of IgA vasculitis at 2 years of age presented w…

急性呼吸衰竭是入住重症监护病房的常见适应证。有创机械通气（特别是正压通气）自20世纪50年代以来一直是严重急性呼吸衰竭治疗的基石1。然而，虽然重症监护管理取得了重大进展，但与插管和…

A 35-year-old African-American woman presents to the clinic complaining of fatigue, dry co…

A 26-year-old man presents with left eye pain and intermittent double vision. When at rest…

A 53-year-old man who worked as a gardener presented to the emergency department with sudd…

一、概述 口腔颌面部间隙感染也称口腔颌面部蜂窝织炎，是指发 生在颌骨、肌肉、筋膜、皮肤之间疏松结缔组织的急性弥散性化脓性炎症。如感染局限则称为脓肿。 二、适用范围 适用于口腔颌面部…

A 29-year-old woman presents to the gynecologist complaining of a “fishy”-smelling vaginal…