I just took the NEJM Knowledge+ Question of the Week. Test yourself:
See more from Giuseppe Biondi-Zoccai
NEJM Knowledge+ Question of the Week on a 41-year-old woman who needs intravenous radiocontrast for a CT study and has a history of a shellfish allergy https://t.co/bODH2DmBuE @nejmkplus https://t.co/bODH2DmBuE - view on twitter