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Current databases on biological variation: pros, cons and progress.

• Carmen Ricós, Virtudes Álvarez, +6 authors Margarita Simón
• Scandinavian journal of clinical and laboratory…
• 1999

A database with reliable information to derive definitive analytical quality specifications for a large number of clinical laboratory tests was prepared in this work. This was achieved by comparing… (More)

The reference change value: a proposal to interpret laboratory reports in serial testing based on biological variation.

• Carmen Ricós, Fernando Cava, +8 authors Virtudes Álvarez
• Scandinavian journal of clinical and laboratory…
• 2004

BACKGROUND A proposal to calculate and use the reference change value (RCV) as an objective guide for interpreting the numerical results obtained in clinical laboratory serial testing is introduced… (More)

Iron-deficiency anemia and thalassemia trait differentiated by simple hematological tests and serum iron concentrations.

• Carlos Víctor Jiménez
• Clinical chemistry
• 1993

The diagnostic value of common hematology tests in differentiating between thalassemia trait and iron-deficiency anemia (IDA) was assessed. Serum iron concentration was included in a second stage of… (More)

A Practical Approach to Minimizing Inaccuracy through Traceability, Using Limited Resources

• Carmen Ricós, Manuel Serrano, +5 authors Amparo Hernández
• Annals of clinical biochemistry
• 1996

Approaches for providing target values to improve usefulness of external quality assessment scheme. The Spanish experience.

• Carmen Ricós, Virtudes Álvarez, +5 authors Manuel Serrano
• Scandinavian journal of clinical and laboratory…
• 1993

The aim of this communication is to highlight the specific aspects of external quality assessment schemes that need to be discussed in a European context: target values, transferability of results… (More)

New indices from the H*2 analyser improve differentiation between heterozygous beta or delta beta thalassaemia and iron-deficiency anaemia.

• Carlos Víctor Jiménez, Joana Minchinela, Joan Ros
• Clinical and laboratory haematology
• 1995

The two main causes of microcytic and hypochromic anaemia are iron deficiency (IDA) and thalassaemia (THAL) traits. In the Mediterranean area there is a high prevalence of beta and delta-beta THAL… (More)

Usefulness of reference limits and evaluation of significant differences. An example of the biological variation of serum rheumatoid factors.

• Carlos Víctor Jiménez
• Annales de biologie clinique
• 1994

To establish analytical quality standards based on biological variations and to evaluate the usefulness of reference values for rheumatoid factors (RF), analytical and biological variations in… (More)

Integration of data derived from biological variation into the quality management system.

• Carmen Ricós, Virtudes Álvarez, +6 authors Margarita Simón
• Clinica chimica acta; international journal of…
• 2004

BACKGROUND [corrected] Data on within- and between-subject biological variation are available for around 250 analytes commonly used in medical laboratories. METHODS Integration of this data into… (More)

Biological variation in urine samples used for analyte measurements.

• Carmen Ricós, Carlos Víctor Jiménez, +5 authors Magda Macià
• Clinical chemistry
• 1994

To determine the influence of biological variation on the reliability of data from different types of urine specimens, we measured nine analytes in first-morning, randomly collected, and 24-h samples… (More)

[Transferability of results in hematologic determinations].

• Virtudes Álvarez, Amparo Hernández, +4 authors Margarita Simón
• Sangre
• 1994

PURPOSE To evaluate inaccuracy of the results attained in several Servei Catalá de la Salut laboratories in order to assess if quality purposes are accomplished and results are transferable between… (More)

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