Stability of athlete passport parameters during extended storage

Abstract

Key blood results can be relied upon for at least 7 days if storage temperature is kept at 4-6 °C.

Evaluation and Comparison of Stability and Reliability of CBC Parameters Determined by Using Automatic Celltac G MEK-9100 Hematology Analyzer during Extended Storage at 4°C

“…Improved stability was observed in samples stored as K2-EDTA-anticogulated blood sample at refrigeration [5,9,10,[17][18][19]. Significant time and temperature related morphological alterations could happen with the long extended storage of blood on refrigeration (Figure 1) [17,20,21].…”

“…However, some studies, which were conducted using refrigerated temperature show that WBC, RBC, and HGB parameters, were constant up to 72 h [21,22]. Only Ashenden et al recently confirmed that haemoglobin was stable for at least 168 h using the Sysmex XT-2000i instrument, when maintained temperature between 4°C and 6°C [18]. Where our study finds that these parameters like WBC counts, RBC counts and HGB level were statistically stable up to 126 h, 186 h and 90 h respectively.…”

“…Influence of storage and variability on the majority of the blood count parameters can be minimized and if the analysis takes place before 24 h at 4°C [6,9,12,18]. …”

Stability of athlete blood passport parameters during air freight

“…We have shown previously that the 36‐h window appears overly conservative. In our hands, key haematological variables were stable for at least 7 days provided that storage temperature was kept at 4–6 °C .…”

Survey material choices in haematology EQA: a confounding factor in automated counting performance assessment

“…The stability of cellular components in EDTA for automated counting is limited: Hb concentration and RBC have been shown to be stable for up to 72 hours, automated total and differential white blood count for 24 hours (or longer, depending on analyser type) and platelet count stable for the same period ( 18 , 19 ). Swelling of red cells in EDTA will result in an increase in the MCV and haematocrit within 12 hours of collection.…”