72-hour crossmatch limit.Q My question regards drawing more blood for crossmatching crossmatching /cross·match·ing/ (-mach-ing) determination of the compatibility of the blood of a donor and that of a recipient before transfusion by placing the donor's cells in the recipient's serum and the recipient's cells in the extra units when the original sample has been depleted de·plete tr.v. de·plet·ed, de·plet·ing, de·pletes To decrease the fullness of; use up or empty out. [Latin d . If it is during the 72-hour period from the original sample draw, what is an acceptable labeling practice for the extra sample tube? Our current policy is to reband the patient and start a new 72-hour period. My understanding is that this is not necessary until the 72-hour limit from the original sample has expired. Our lab director says she does not want to lose the revenue generated from the extra type and screen. Is this an acceptable practice? What should we be doing? A The disadvantage to this practice is that we need to repeat not only type and screen but also the crossmatch Crossmatch A laboratory test done to confirm that blood from a donor and blood from the recipient are compatible. Mentioned in: Blood Typing and Crossmatching, Heart Transplantation crossmatch of the red-cell units. Since red-cell units cross-matched prior to new sample cannot be used due to the new label from rebanding, our policy is not to reband the patient for the same episode as long as patient has not left the hospital. If the sample is exhausted and a new sample is redrawn within 24 hours, then we only repeat ABO/Rh type of the sample to confirm ABO/Rh type, and this sample carries the same 72-hour crossmatch expiration limit. After 24 hours type as well as screen is repeated and a new 72-hour sample crossmatch expiration limit is given. The only exception to this policy is obstetric ob·stet·ric or ob·stet·ri·cal adj. Of or relating to the profession of obstetrics or the care of women during and after pregnancy. obstetrical, obstetric pertaining to or emanating from obstetrics. patients coming for labor and delivery, and returning to the hospital within 24 hours of type and screen. These patients will get a new band (2nd episode), and both type and screen will be repeated. Thus, the advantage of this policy for us is that identification remains the same during the period of hospitalization hospitalization /hos·pi·tal·iza·tion/ (hos?pi-t'l-i-za´shun) 1. the placing of a patient in a hospital for treatment. 2. the term of confinement in a hospital. , and previously crossmatched units within 72-hour periods are not required to be re-crossmatched with the new sample unless an unexpected red-cell antibody is detected. We are a major trauma and transplant center, and this policy works well in our institution. --Krishna Oza, MD Department of Pathology University of Arkansas for Medical Sciences The University of Arkansas for Medical Sciences (UAMS) is part of the University of Arkansas System, a state-run university in the U.S. state of Arkansas. The main campus is located in Little Rock. Little Rock, AR Daniel M. Baer, MD, is professor emeritus e·mer·i·tus adj. Retired but retaining an honorary title corresponding to that held immediately before retirement: a professor emeritus. n. pl. of laboratory medicine at Oregon Health and Science University in Portland, OR, and a member of MLO's editorial advisory board. [ILLUSTRATION OMITTED] |
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