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Articles tagged with: Blood/coagulation/hematology –

Hemostasis testing guide now out in new edition

June 2016—The older we get, the faster time seems to pass. That’s why 2008 might not feel like all that long ago—until you consider that Obama had yet to take office, Donald Trump’s television appearances were limited largely to The Apprentice, and there was no “like” button on Facebook.

Nothing peripheral about assessing the ‘other’ cytopenias

April 2015—Think age is important only if you’re a Hollywood actress (unless you’re lucky enough to be Meryl Streep)? Think again. Specifically, Joan Etzell, MD, wants pathologists to think about age-adjusted reference ranges for thrombocytopenia and neutropenia. They’re intrinsic to the basic definitions of these diseases, she pointed out in a course on peripheral cytopenias at last year’s AACC meeting.

Pressing questions in POC glucose testing

April 2015—Sometimes major changes to a health care organization’s point-of-care testing system come from powerful regulatory agencies in Washington, DC. Or they may arise when a child with diabetes objects to frequent venipuncture. In either kind of case, experts say, pathologists and laboratory professionals must form strong relationships with clinicians and build structural foundations to help them meet these and other demands.

Study, strategy lift up POC critical value practices

February 2015—Too many point-of-care glucose test results in the critical high and low ranges may be nonreproducible and therefore should be repeated. That was the finding of a study published last year that said POC glucose results in the critical ranges should be considered to have a relatively high probability of signaling a potential preanalytic error.

Diagnostic perils of hematologic illness

February 2015—Like a modern-day Pericles, Tracy George, MD, had much to traverse in her overview of leukocytosis, thrombocytosis, and erythrocytosis during a course on diagnostic hematology at last year’s AACC meeting. Unlike Shakespeare’s Pericles, however, Dr. George navigated the many twists of her topic with the efficiency and near-encyclopedic knowledge of an experienced tour guide.

Coag quest: keying into the clot risk of cancer patients

January 2015—It’s a somewhat stark fact: When hospitalized cancer patients die from something other than cancer, the cause is most likely to be venous thromboembolism. But there is a degree of mystery about why some cancer patients are more prone than others to be afflicted with VTE.

Anemia: classification challenge and clinical questions

December 2014—Anemia is in the eye of the classifier. While that’s not as elegant as the “beauty-beholder” saying, it’s much more important. To be able to effectively treat and diagnose anemia, “You have to know what is causing the decrease in red cells,” said Sherrie Perkins, MD, PhD, speaking at an AACC workshop this year. There are plenty of definitions to choose from, said Dr. Perkins, of the University of Utah/ARUP Laboratories, Salt Lake City. At the most basic level, she noted, anemia is a pathologic condition marked by a reduced capacity of blood to transport and deliver adequate oxygen to tissues. In short, anemia is a manifestation of disease, not a disease itself.

Hematology lineup gets year-end look

December 2013—They say change is never easy, but Sysmex seems to be making a downright habit of it: “We have replaced almost 80 percent of our portfolio within the past year,” says Alan Burton, the company’s director of IVD product marketing. Coincidentally or not, Sysmex has seen much success in the last 12 months with its introduction of the XN-Series of automated hematology analyzers. “Already there have been well over 500 XN modules installed across North America,” Burton reports.

Quick on the draw—coagulation tube response

October 2002—As the sensitivity of coagulation testing has increased, the preanalytical phase has been getting more attention as a potential source of error. Variables that have long been known to affect the accuracy of activated partial thromboplastin times are the reagents and instruments used in testing and the delays between acquiring and processing a blood sample.

Ways to move quickly on bloodstream infection

October 2013—Since 1942, when penicillin was first used to treat infections caused by gram-positive bacteria, many improved and potent beta-lactam antimicrobials have been developed. Yet today, if a patient in an intensive care unit develops a bloodstream infection with Staphylococcus aureus, that person has a one in three chance of dying. High mortality rates apply to many other pathogens that cause bloodstream infections in ICU patients—from one in five for coagulase-negative staphylococci and Escherichia coli to almost 40 percent for Pseudomonas aeruginosa and Candida spp. Enterobacter spp and Enterococcus spp have intermediate mortality rates: one in four and one in three, respectively. Even among patients on a non-ICU ward, bloodstream infections are associated with mortality rates between 20 percent and 30 percent.

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