Performance evaluation of the ZL 6000i cone-plate rotational viscometer.
Clin Hemorheol Microcirc
; 75(2): 143-149, 2020.
Article
em En
| MEDLINE
| ID: mdl-31929148
ABSTRACT
BACKGROUND:
Elevated whole blood viscosity (WBV) is associated with increasing blood flow resistance in the microcirculation and is used to predict the occurrence and outcome of cardiovascular diseases.OBJECTIVE:
We evaluated the analytical performance of the ZL 6000i (Zonci Technology, Beijing, China), new fully automated cone-plate rotational type viscometer.METHODS:
We collected blood samples from 287 adults to establish a reference range. We evaluated total precision for 20 days using quality control (QC) samples and within-run precision was evaluated by performing 50 consecutive measurements of blood samples. Aliquots of blood samples were stored at room temperature and 5°C to assess the effect of storage time and temperature on viscosity measurement.RESULTS:
The reference ranges and median values of WBV were significantly higher in males than in females due to difference in hematocrit level. The coefficients of variation (CVs) for precision using QC and human blood samples wereâ<â7.5% at all shear rates. WBV of the samples stored at room temperature for up to 6âh, and at 5°C for samples stored up to 2 days was not different from the control.CONCLUSIONS:
In this study, the ZL 6000i viscometer yields reproducible WBV data and is clinically useful for monitoring viscosity.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Viscosidade Sanguínea
/
Hemorreologia
Tipo de estudo:
Prognostic_studies
Limite:
Adult
/
Female
/
Humans
/
Male
Idioma:
En
Revista:
Clin Hemorheol Microcirc
Assunto da revista:
ANGIOLOGIA
/
HEMATOLOGIA
Ano de publicação:
2020
Tipo de documento:
Article
País de afiliação:
Coréia do Sul