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Storage of whole blood before separation: the effect of temperature on red cell 2,3 DPG and the accumulation of lactate
Author(s) -
Högman C.F.,
Knutson F.,
Lööf H.
Publication year - 1999
Publication title -
transfusion
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.045
H-Index - 132
eISSN - 1537-2995
pISSN - 0041-1132
DOI - 10.1046/j.1537-2995.1999.39050492.x
Subject(s) - hemoglobin , red blood cell , blood preservation , whole blood , chemistry , anticoagulant , zoology , red cell , bicarbonate , medicine , andrology , biochemistry , biology
BACKGROUND: Although whole blood intended for component preparation is commonly left to cool at ambient temperature, knowledge is insufficient as to the effects this may have on red cell quality, in particular after a prolonged hold. STUDY DESIGN AND METHODS: Whole blood collected in ACD‐A (7% wt/wt) and CPD (12% wt/wt) was incubated at 4, 10, 15, 20, 25, and 30°C for 24 hours. Blood gases, pH, bicarbonate, glucose, lactate, and red cell 2,3 DPG were investigated. RESULTS: When the blood was stored at 30°C, the 2,3 DPG concentration decreased within 4 hours from 858 ± 106 to 316 ± 172 mmol per mol of hemoglobin (a 63% decrease); 99 percent was lost within 18 hours. At 25°C, 46 percent was lost within 4 hours and 94 percent within 18 hours; at 20°C, the decrease at 18 hours was 62 percent and that at 15°C was 24 percent. No loss of 2,3 DPG was observed at 4°C and 10°C storage. No difference was attributable to the anticoagulant used. After 24 hours, the lactate concentration at 15°C was 2.9 times the original, that at 20°C was 3.8 times the original, that at 25°C was 7.0 times, and that at 30°C was 9.2 times. CONCLUSIONS: With current anticoagulants, storage of whole blood at temperatures of 25 to 30°C before separation causes a great and rapid loss of 2,3 DPG and an accumulation of acid metabolites. In a hold of blood for >4 hours, rapid cooling is desirable to avoid initial loss of 2,3 DPG.