COVER STORIES

New Heparin Standards 
Will the Change Make a Discernable Difference In Coagulation Monitoring?
By Genna Rollins

Updated standards for unfractionated heparin are expected to reduce the drug’s potency, but experts question what practical impact the changes will have.

Interpretive Comments on Test Results
How Far Should Labs Go?
By Bill Malone

While recent reports suggest that interpretations on lab reports help prevent misdiagnoses, labs experimenting with interpretive comments say they tread a fine line between helping physicians assimilate information from the lab without contributing to information overload.

SERIES ARTICLE

Vitamin D Testing
How Will We Get It Right?
By Rosemary L. Schleicher, PhD, and Christine M. Pfeiffer, PhD

The demand for vitamin D testing has dramatically increased in recent years, leading clinicians to grapple with new analytical methods and differences in standard reference materials.

NEWS BRIEF

INSIDE

H1N1 Spreads Across the United States
Tips on Handling the Spike in Demand for Testing

An interview with Ron Wince, president and CEO of Guidon Performance Solutions, on how labs can improve efficiency in order to handle an increased demand for flu testing.

PROFILES

Regulatory Profiles