Evaluation of blood collection tubes specific for homocysteine measurement.

نویسندگان

  • Aniek O de Graaf
  • Robert de Jonge
  • Mathieu H Velmans
  • Joost C J M Swaanenburg
  • Marcel J W Janssen
چکیده

Ned Tijdschr Klin Chem Labgeneesk 2008, vol. 33, no. 3 Tenslotte kunnen vraagtekens gezet worden bij de gegevens vermeld in de bijsluiter van de Immulite 2500. In de bijsluiter is de volgende correlatie beschreven: Immulite 2500 = 0,93 x Immulite 2000 + 10,7 pg/ml (5). Vertaald naar pmol/l zou een waarde van 150 pmol/l op de Immulite 2000 een waarde van 147 pmol/l op de Immulite 2500 moeten opleveren. Onze data laten zien dat dit niet klopt en dat eerder een waarde van 123 pmol/l wordt gevonden. Daar bovenop komt dat in sommige monsters een variatie van maximaal 33,4% is waargenomen. Juist in het klinisch belangrijke gebied treden dus grote afwijkingen op met implicaties voor de betrokken patiënten. Bij gedetailleerde bestudering van de door de firma gekozen correlatiemonsters valt op dat in het gebied tussen de 111 en 150 pmol/l slechts enkele monsters zijn geïncludeerd en onder de 136 pmol/l geen enkel monster (5). Hierdoor is de door ons geobserveerde bias tussen de twee methoden onopgemerkt gebleven. Samenvattend kan gezegd worden dat de problemen van de VB12-bepaling zo complex zijn, dat ze alleen door goede en open communicatie tussen de aanvragers van labdiagnostiek, de laboratoria en de diagnosticafabrikanten goed zijn te tackelen.

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Measurement of Plasma Total Homocysteine by HPLC

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عنوان ژورنال:
  • Clinical chemistry and laboratory medicine

دوره 46 11  شماره 

صفحات  -

تاریخ انتشار 2008