Journal of Laboratory Medicine and Quality Assurance

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Table. 3.

Table. 3.

Distribution of pH across specimens and instruments

SpecimenIntended responseResultNo. of allNo. of EikenNo. of RocheNo. of Siemens
CU-18-01Unacceptable<5.525100
Unacceptable6621101
Acceptable6.52351221
Acceptable79662416532
Acceptable7.51481547
Unacceptable>8540440
CU-18-05Unacceptable<5.532011
Unacceptable6541101
Acceptable6.52301201
Acceptable710132514534
Acceptable7.51551844
Unacceptable>8740631
CU-18-11Acceptable59744320210
Acceptable5.53683346
Unacceptable62111233
Unacceptable>6.536080

The instruments were from the following companies: Eiken (Eiken Chemical Co., Tokyo, Japan), Roche (Roche Diagnostics, Mannheim, Germany), and Siemens (Siemens Healthcare, Erlangen, Germany).

J Lab Med Qual Assur 2019;41:75-81 https://doi.org/10.15263/jlmqa.2019.41.2.75
© 2019 J Lab Med Qual Assur