When hospital and reference laboratories achieved CAP accreditation, they are being recognized as high quality by being able to produce accurate patient results by constantly assessing their performance through PT and provide patient care at lowest possible cost.
PT assesses the accuracy of results and is part of quality control. Participating laboratories report results to CAP for assessment after carrying out necessary tests on blind samples of unknown values given to them. PT results obtained allow detection of analytical, clerical and interpretation errors and they must be investigated and documented. A target standard deviation index (SDI) of 0 is desired.
1. College of American Pathologists – What is Proficiency Testing. Retrieved 16th June, 2008 from http://www.cap.org/apps/cap.portal?_nfpb=true&cntvwrPtlt_actionOverride=%2Fportlets%2FcontentViewer%2Fshow&_windowLabel=cntvwrPtlt&cntvwrPtlt%7BactionForm.contentReference%7D=proficiency_testing%2Fsurveysintro.html&_state=maximized&_pageLabel=cntvwr
2. College of American Pathologists. Retrieved 16th June, 2008 from
3. ClinLab Navigator – Proficiency Testing. Retrieved 16th June, 2008 from http://www.clinlabnavigator.com/proficiencytest.html
Note:  represents reference 1,  represents reference 2,  represents reference 3
By: Tan Han Yang
Class: TG01, Group 2
Word Count: 100 words
Date of submission: 16 June 2008