"Hyperkalemia" by Carolyn M. Burger (Emergency, October 2004) incorrectly stated that sodium polystyrene sulfonate (Kayexalate and others) lowered serum potassium by prompting renal excretion of potassium. It actually exchanges a sodium ion for a potassium ion primarily in the large intestine and then binds the potassium ions to the resin, which is eliminated in the stool.

"Sudden Cardiac Death" and "When Female Veterans Return Home" by Fran Mennick were inadvertently published twice, once in Hospital Extra (FYI, November 2004) and again in Critical Care Extra (FYI, December 2004).

In "What's the Right Nurse-to-Patient Ratio?" in the January News, the report that a review of the literature on nurse staffing levels had shown that "lower nurse-to-patient ratios were associated with lower failure-to-rescue rates" should have read, "greater amounts of time spent by nurses with patients and lower patient loads were associated with lower failure-to-rescue rates."

"The Tragedy of Chronic Kidney Disease," the February Editorial by editor-in-chief Diana Mason, incorrectly referred to the U.S. Virgin Islands as a country. It is a territory of the United States.