Theresa Brown loves her work as a nurse, and loves to write about it.
She gives glimpses of the medical world in her New York Times column, and long, unblinking views in her books, including the new The Shift.
The title refers to a single day, one 12-hour shift in which Brown and her colleagues deal with life-and-death matters involving four separate patients.
It gives a plain and frank look at the situations and decisions faced by medical professionals, and the effects on patients.
Theresa Brown gives us an hour to wrap our minds around it all.