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March 2010 - Posts

David Plaut: Off the Cuff

Notes and Musings on Vitamin D Deficiency
March 24, 2010 10:29 AM by David Plaut
A friend of mine in Illinois sent me a note recently saying that orders for Vitamin D 25,hyrdoxy levels had increased 75% in the past year. She wondered why and asked one of the clinicians. He stated that there was a mini-epidemic of Vitamin D deficiency, Read More...
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Inter-instrument Variance
March 16, 2010 9:20 AM by David Plaut
Periodically, the question of pooling data from two instruments of the same model and manufacturer for the same analyte to establish a single mean and range arises. This question applies to chemistry, hematology, coagulation/hemostasis, immunochemistry, Read More...
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Monitoring A1c Changes
March 1, 2010 11:33 AM by David Plaut
Recently, I have found myself thinking more about the reported data that a lowering of one's A1C, especially if the initial value is about 7, will reduce the risk of a cardiac event (e.g., an AMI) by some 10%. Thus, a change of 8% A1c to 7% would lower Read More...
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