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What is a critical lab value? it depends, Hopkins researchers find
Date:10/28/2007

When it comes to lab tests, interpreting the clinical importance of an out-of-range result depends on how much experience a physician has, suggests research from the Johns Hopkins Childrens Center. Investigators are presenting their findings at the American Academy of Pediatrics Conference Oct. 26 through Oct. 30 in San Francisco.

In the study involving 31 residents, six fellows and 10 senior attending physicians in the neonatal intensive care unit (NICU) at Hopkins Childrens, senior, more experienced doctors (attending physicians) were less likely to want certain abnormal results reported to them immediately. By contrast, the less experienced doctors (residents) were most likely to want all out-of-range values right away, while those in the middle of the experience curve (fellows) fell in between.

Theoretically, there should be no difference in which abnormal values doctors consider critical to get by instant pager, so we were quite surprised to see how their views of critical varied, says lead investigator Theodora Stavroudis, M.D., a neonatologist at Hopkins Childrens.

The differences could mean that younger, less experienced doctors are simply more anxious and prefer to err on the side of caution, researchers speculate.

With increased experience, you tend to learn which alerts you can ignore safely and which ones you cant, says senior investigator Christoph Lehmann, M.D. Unfortunately, this isnt something you can teach in medical school, but it is something that comes with experience.

Researchers asked doctors to define which out-of-range lab values they considered critical enough to require the lab to page them. Under the current system, a lab technician reports the lab results to a nurse, who then reports them to a doctor, which means that up to 20 minutes can pass before a doctor finds out about a patients abnormal labs. In an effort to cut lab-to-doctor time, streamline communication and improve patient safety
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Contact: Katerina Pesheva
Epeshev1@jhmi.edu
410-926-6780
Johns Hopkins Medical Institutions
Source:Eurekalert

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