A 68-year-old man with past medical history of atrial fibrillation on warfarin presents to the ED after motor vehicle crash — Brain Teaser. Do you know the answer?

Test your knowledge and see how much you know about treating and managing blunt cardiac injury…

15-year-old girl presents with irregular periods — Brain Teaser. Do you know the answer?

Test your knowledge and see how much you know about treating and managing adolescent gynecologic emergencies.…

A 25 weeks? pregnant patient presents with a blood pressure of 180/120 mm Hg. — Brain Teaser. Do you know the answer?

Test your knowledge and see how much you know about treating and managing life-threatening headaches in…

Secondary hypothermia in patients with sepsis and trauma — Brain Teaser. Do you know the answer?

Test your knowledge and see how much you know about treating and managing hypothermia and peripheral…

Using anti-D immune globulin in first trimest of pregnancy — Brain Teaser. Do you know the answer?

Test your knowledge and see how much you know about treating and managing first trimester pregnancies…

A 12-year-old boy presents to the ED with a flulike illness — Brain Teaser. Do you know the answer?

Test your knowledge and see how much you know about treating and managing suspected bioterrorism in…

Using chemoprophylaxis in a child aged 1 year — Brain Teaser. Do you know the answer?

Test your knowledge and see how much you know about treating and managing influenza in the…

Diagnostic sensitivity of ED clinical assessment — Brain Teaser. Do you know the answer?

Test your knowledge and see how much you know about treating and managing pediatric bacterial meningitis.…

24-year-old subdued with taser — Brain Teaser. Do you know the answer?

Test your knowledge and see how much you know about treating and managing electrical injuries in…