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Tag Archives: Blood banking/transfusion

The way forward for prehospital transfusion

December 2022—Ask Leonard Weiss, MD, what his favorite part of his schedule is, and he’s quick to answer that it’s the fieldwork: the helicopter and ambulance dispatches he accompanies once or twice a month as associate medical director of emergency medical services at the University of Pittsburgh Medical Center. Dr. Weiss, who is also assistant professor of emergency medicine and assistant medical director of Pittsburgh’s Stat Medevac service, says one of the UPMC emergency services he strongly supports is the prehospital transfusion of blood products. “Until recently, there wasn’t a lot of evidence to deploy its use on the ground as it is in the air, but thanks to extensive use by the military and scientific evidence of the value of prehospital transfusion,” he says, it is more likely to become part of some hospitals’ emergency medicine programs. The 911 ground-based transfusion program at UPMC and city of Pittsburgh EMS began in 2020. As Dr. Weiss and his UPMC colleagues acknowledge, however, myriad complexities come into play.

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U.S. blood supply steadier but still short

August 2022—Blood is a precious resource and shouldn’t be treated as a commodity. That’s the consensus in the blood banking community, in line with a longstanding conviction that volunteer donations should remain at the blood system’s core. But as the worst of the pandemic appears to have passed, discussion of blood shortages has increasingly drawn on the vocabulary of commerce, and the warnings about the blood supply have been rife with references to supply chain problems that go beyond the need for more donations. Crises in the blood supply are nothing new, and while the health care system strives to stay prepared, the pandemic threw novel commercial and logistical factors into the mix, in some ways jumbling the expected order of a crisis for blood services. Hospitals scrambled to cope with a surge of COVID-19 patients while the spread of infection caused thousands of blood drives to be canceled, so there was a steep drop in supply of blood products, says Pampee Young, MD, PhD, chief medical officer, biomedical services, American Red Cross.

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In SARS-CoV-2, small steps but big wins

December 2020—By its very nature, the global pandemic has forced laboratories to look far and wide, to bring binoculars, in essence, to their views of supply chains, testing platforms, personnel, and the like. As COVID-19 churns on, some labs are looking through a tinier lens as well. These labs aren’t trading their binoculars for a jeweler’s loupe, exactly, but they have found small and significant success stories closer to home. Like so many others, Erin Graf, PhD, D(ABMM), has confronted a spinning roulette wheel since the pandemic’s start. In a talk she gave in an AMP webinar in October, Dr. Graf posted a vibrantly colored wheel titled, “Which supply chain issue will impact us this week?” Each segment contained a phrase familiar to everyone in 2020, ranging from “swabs” and “sheep blood agar” to “pipette tips” and “chlamydia and gonorrhea tests.” As she surveys these continuous claims on her attention, Dr. Graf says, “I think none of us could have ever thought that COVID would have an impact on all these arms of the testing that we do.”

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Transfusion medicine checklist: Record and other requirements updated in new release

August 2018—One new requirement and several modified requirements in the CAP transfusion medicine checklist are part of the new edition of CAP accreditation program checklists released this month. In work led by the CAP Council on Accreditation, the checklists are examined anew and revised yearly, where needed. In transfusion medicine, the changes this year center on computer crossmatches, record retention, forward/reverse typing, and ABO group and Rh(D) type verification.

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With hemolysis, tackling the rush with the reasoning

May 2018—First a journey. Then sometimes a vigorous shake. Little wonder that red blood cells hemolyze. “Red blood cells don’t like to be stressed,” says Kathleen Finnegan, MT(ASCP)SH, phlebotomy training program director at Stony Brook University School of Technology and Management, New York. She instructs her students to avoid stressing the RBCs by skipping what she calls the “martini shake” (CLSI recommends five to 10 tube inversions), using a needle that is the right size, and not using a syringe for transfer but instead a transfer device. “So it’s gentle,” she says.

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AABB seeks comments on form to streamline transfusion adverse reaction reporting

January 2018—The AABB is seeking comments by March 30 on its common transfusion reaction reporting form, the seven pages of which are presented online at www.bit.ly/AABB-reportform. The fillable PDF form is intended to be used by hospitals and blood centers to communicate information about transfusion reactions to the blood supplier, particularly when there are multiple suppliers to the hospital transfusion service.

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New rays on blood safety

March 2017—The language of blood banking experts, as they talk about irradiators, transfers easily to a car dealership. How reliable are the newer models? Are you willing to replace it every 10 years or so? Do you keep running it until it dies? What parts are likely to burn out? What will repairs run? And then the word “terrorism” pops up.

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Blood bank: On guard against daratumumab interference

October 2016—As fans of spycraft know, offensive counterintelligence can include an arsenal of strategies: initiating a diversion, sowing confusion, creating false identities—anything that makes another party believe something that isn’t true. If the cancer treatment drug daratumumab were capable of deceptive intent, it might be accused of all those ploys when it comes to interfering with blood transfusion crossmatching. The reason: For patients receiving daratumumab, marketed as Darzalex by Janssen Pharmaceuticals, antibody testing for transfusion is subject to erratic false-positives, often leaving transfusion services confused, uncertain, and on hold.

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Mislabeling, wrong-blood-in-tube errors rare but there

November 2015—Blood is thicker than water, the saying goes. And thanks to a recent Q‑Probes, the rates of mislabeled specimens submitted for ABO blood typing and of wrong-blood-in-tube errors are now as clear as water. The mislabeling rate hasn’t changed much since a similar Q‑Probes study was performed in 2007. The 2015 Q‑Probes, “Blood Bank Safety Practices,” reviewed 41,333 specimens and found that 306, or 0.74 percent, were mislabeled. The previous study looked at 112,112 specimens, of which 1,258, or 1.12 percent, were mislabeled.

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Groups urge phase-in of RHD genotyping

October 2015—It may not be quite like boxing frogs or herding cats. But gaining broad consensus on a laboratory medicine practice can be difficult, especially where multiple organizations must agree. A new joint statement on RHD genotyping by the CAP and the AABB, plus four other organizations, shows that such consensus is possible, however, even where it involves a laboratory medicine practice in place for more than 50 years—especially when advances in molecular testing are offering a solution to a problem.

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Massive transfusion: a question of timing, detail, a golden ratio

December 2014—Here it was, the kind of massive postpartum hemorrhage case for which the team at Duke University Medical Center had spent months preparing. The multidisciplinary group had agreed on which laboratory tests would be done in such a case, determined which blood products would be delivered, and decided which members of the OB team would be sent racing to retrieve the potentially life-saving package.

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AABB ramps up donor screening to help stem TRALI

October 2014—When it comes to the blood supply, the tradeoffs between safety and availability are a tightrope that blood centers walk with extreme care. For several years now, TRALI (transfusion-related acute lung injury) has topped the list of causes of transfusion-related mortality in the U.S. Defined as acute lung injury that occurs during or within six hours of transfusion of a blood product, TRALI is fatal to six to 10 percent of the patients it strikes.

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Tuning in to hypotensive transfusion reactions

April 2014—Most pathologists are trained to think of hypotensive transfusion reactions as rare events, and for the most part they are. But one pathologist’s experience suggests these reactions may be underreported, and perhaps on the rise. Greater recognition of these events could provide valuable information and help improve patient outcomes. “People often report these reactions as possibly related to transfusions, but the challenge to the pathologist is that the transfusion reaction workups are negative, for the most part. So they’re in a quandary as to whether the drop in blood pressure was because of the transfusion or other causes,” says Richard M. Scanlan, MD, clinical professor, vice chair of laboratory medicine, and director of the transfusion medicine service at Oregon Health and Science University (OHSU).

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Policing blood use pays off for Allina Laboratories

March 2013—A January study of almost 1,000 patients with acute gastrointestinal bleeding has found that restrictive blood transfusion strategies produce better patient outcomes. The study, “Transfusion strategies for acute upper gastrointestinal bleeding,” discovered that patients with severe acute upper GI bleeding who received blood transfusions when their hemoglobin levels fell below 7 g/dL, rather than 9 g/dL, had higher probabilities of survival at six weeks, as well as reduced rates of further bleeding and fewer adverse events (Villanueva C, et al. N Engl J Med. 2013;368:11–21).

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