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7 Ιουν 2021 · The concentration of citrate in the primary blood tube is standardized for binding a physiological amount of ionized calcium present in blood, so that blood coagulation cannot be triggered in the blood tube, after drawing blood.
27 Σεπ 2021 · Recommendation 5.1: Citrated blood samples for coagulation testing should be centrifuged at ambient temperature of 18-24°C using conditions sufficient to achieve platelet-poor plasma with a residual platelet count of <10 × 10 9 /L.
In the current review we summarize previous findings and important recent advances in the understanding of platelet Ca 2+ homeostasis, with a special focus on the mechanisms of Ca 2+ entry and its significance for platelet function. Calcium store release in platelets.
6 Μαΐ 2019 · We hypothesized that pH‐corrective equations for bovine plasma would be similar to those used for human plasma; c Ca 2+ was dependent on the plasma concentrations of total calcium (c TCa), chloride (c Cl), L‐lactate (c Lactate), and albumin (c Albumin); and the in vitro and in vivo c Ca 2+ ‐pH relationships would differ. Animals.
31 Μαρ 2017 · The concentration of ionized calcium also gradually increased in lithium-heparin plasma aliquots 2 and 3, whereas it remained immeasurable (i.e., <0.10 mmol/L) in all citrate plasma aliquots.
Blood plasma calcium concentration is also low in prolonged deaths involving extensive skeletal muscle damage, such as severe blunt injury and burns, as well as intoxication and under-/malnutrition. High magnesium concentration is detected in intoxication and hyperthermia (heatstroke).
Plasma cCa 2+ in critically ill calves was associated with plasma cTCa, blood pH, plasma cCl, serum cMg, and cL-lactate (R 2 = 0.69) but not plasma cAlbumin. Conclusions and clinical importance: Calculation of cCa 2+ from cTCa in calf plasma or serum requires adjustment for at least pH and cCl when 1 or both are outside the reference range.
