1.
Clin Biochem
; 43(18): 1464-7, 2010 Dec.
Artigo
em Inglês
| MEDLINE
| ID: mdl-20850427
RESUMO
BACKGROUND: We illustrate the impact of sample evaporation on analytical results in laboratory practice and highlight preventive measures. METHODS: Plasma (n=10) was analysed for glucose, Na(+), HCO(3)(-) and calcium on six different sample configurations at 5 time points within 2h. RESULTS: With time glucose, Na(+) and calcium values increased and HCO(3)(-) values decreased in a clinically significant way. CONCLUSIONS: Analytical error due to evaporation may be significant, but can be reduced with optimal sample handling. A pierceable cover does not prevent loss of HCO(3)(-).