Audit of internal quality control practice and processes in the south-east of England and suggested regional standards.
BACKGROUND
Internal quality control (IQC) has a long and well-established role in clinical biochemistry laboratories. However, despite the duration of use, and the publication of several articles detailing best practice, the implementation and use of IQC vary significantly between institutions. Consequently, the North Thames Audit and Quality Assurance Group undertook a region-wide audit of current IQC practice in 2006.


METHODS
On aspects of IQC testing, interpretation and laboratory processes, 54 laboratories in the region were audited.


RESULTS
Audit data showed significant variability in all aspects of practice, including IQC frequency, use of appropriate material, statistical processing and grades of staff involved.


CONCLUSIONS
Some of the variation in practice may affect the effectiveness of laboratory IQC, and thus the adequacy of a laboratory to monitor system performance. Consequently, a set of proposed regional standards have been developed and disseminated, prior to re-audit at a future date.
Housley
David
D
Department of Clinical Biochemistry, Luton & Dunstable Hospital NHS Foundation Trust, Lewsey Road, Luton LU4 0DZ, UK. David.Housley@nhs.net
Kearney
Edward
E
English
Emma
E
Smith
Natalie
N
Teal
Teresa
T
Mazurkiewicz
Janina
J
Freedman
Danielle B
DB
D054869:Clinical Audit; D019411:Clinical Laboratory Techniques / Q000592:standards*; D004739:England; D006801:Humans; D011785:Quality Assurance, Health Care; D011786:Quality Control; D012016:Reference Values