In the New York Times today, Laurie Tarkan reports on a new study published in the Annals of Emergency Medicine. Here’s an excerpt:

A vast majority of emergency room patients are discharged without understanding the treatment they received or how to care for themselves once they get home, researchers say. And that can lead to medication errors and serious complications that can send them right back to the hospital.

In a new study, researchers followed 140 English-speaking patients discharged from emergency departments in two Michigan hospitals and measured their understanding in four areas — their diagnosis, their E.R. treatment, instructions for their at-home care and warning signs of when to return to the hospital.

The study, published online in July by the Annals of Emergency Medicine, found that 78 percent of patients did not understand at least one area and about half did not understand two or more areas. The greatest confusion surrounded home care — instructions about things like medications, rest, wound care and when to have a follow-up visit with a doctor.

You can read the complete article here. You can find the original research article, “Patient Comprehension of Emergency Department Care and Instructions: Are Patients Aware of When They Do Not Understand?” in the Annals of Emergency Medicine.