The Magic Number 7 (or maybe 4?), Forced Errors, Triage, and Color-Blindness

In its most pedantic definition, an ED tracking system is a system for tracking things in the ED. Tracking things that, well, things that we need to keep track of. People. Orders. Labs. Consults. Messages from docs. Many different bits of information that are needed to keep the ED running smoothly. One of the reasons […]

Interruptions, Memory and Situational Awareness

“Unless it produces action, information is overhead.” –Thomas Petzinger First, a caveat: vendors of HISs (hospital information systems) and EDISs (emergency department information systems) insist that a tracking system is just one component of an integrated system. They point out that there are interactions between a tracking system and CPOE (computer-based practitioner order entry) systems, […]

History, How Bad Design Kills, Posture and Metaphors

The following historical account is based on personal experience as a child being taken to ERs in the 1950s, as an observer in ERs in the 1960s, an EMT and then street medic training in ERs in the 1970s, and then as an emergency physician since the 1980s. Some names may have been changed or […]

Anticryptography

We all know what cryptography is: cryp·tog·ra·phy, n. 1.    the science or study of the techniques of secret writing, esp. code and cipher systems, methods, and the like. Cf. cryptanalysis (def. 2). 2.    the procedures, processes, methods, etc., of making and using secret writing, as codes or ciphers. 3.    anything written in a secret code, […]

Data Display

One feature of most tracking systems is data display for an individual patient in the Emergency Department. In most tracking systems, we can double-click on the patient’s name, and then we see a pop-up window, populated with things that the nurses have entered and that are found in the patient’s electronic medical record (EMR) entry: […]