Preventing infection in the perioperative setting is a critical element of patient and health care worker safety. This article reviews the recommendations in the AORN "Recommended practices for prevention of transmissible infections in the perioperative practice setting." The recommended practices are intended to help perioperative nurses implement standard and transmission-based precautions (i...

A unique 'second' niche for follicular B cells has been described in the extravascular compartment of the bone marrow surrounding vascular sinusoids. The occupancy of this niche by B cells presumably evolved to facilitate humoral immune responses to blood-borne pathogens. B cells appear to be sustained in this niche by bone marrow dendritic cells and are lost from this compartment in certain mu...

E ase of administration, accuracy, and convenience are among the hallmark characteristics of insulin pens. These devices, which have gained popularity over the past 10 years, are designed to be used multiple times for a single person, using a new needle for each injection. Unfortunately, reports of themisuse of insulin pens also have been growing. Backflow of blood and other biologic material i...