CLSI C28 P3 : 3ED 2008
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
DEFINING, ESTABLISHING, AND VERIFYING REFERENCE INTERVALS IN THE CLINICAL LABORATORY
24-11-2008
12-01-2013
Abstract
Committee Membership
Foreword
1 Scope and Introduction
2 Standard Precautions
3 Definitions
3.1 IFCC/ICSH Definitions
3.2 Clarifications
4 Use of Systhme International d'Unitis (SI Units)
5 Protocol Outline for Obtaining Reference Values and
Establishing Reference Intervals
5.1 New Analyte or Analytical Method
5.2 Multicenter Reference Interval Studies
5.3 Previously Measured Analyte
6 Selection of Reference Individuals
6.1 Introduction
6.2 Exclusion and Partitioning
6.3 Sample Questionnaire
6.4 Selection of Reference Individuals
7 Preanalytical and Analytical Considerations
7.1 Subject Preparation
7.2 Specimen Type, Collection, Handling, and Storage
7.3 Analytical Method Characteristics
8 Analysis of Reference Values
8.1 Minimum Number of Reference Values
8.2 Treatment of Outlying Observations
8.3 Partitioning of Reference Values
8.4 Examples
8.5 Confidence Intervals for Reference Limits
9 Transference
9.1 Transference: Comparability of the Analytical System
9.2 Transference: Comparability of the Test Subject
Population
10 Validation
10.1 Validation: Subjective
10.2 Validation: Using Small Numbers of Reference Individuals
10.3 Validation: Using Larger Numbers of Reference Individuals
11 Presentation of Reference Values
11.1 Introduction
11.2 Laboratory Presentation
11.3 Manufacturer Presentation
12 Other Issues
12.1 Qualitative Analysis
12.2 Therapeutic Drug Levels
12.3 Time-Dependent/Challenge Tests
12.4 Individual Variation
12.5 "Critical Values"
13 Summary
References
Appendix A. Effectiveness of Several Statistical Tests in
Validating Transference of Reference Intervals
Appendix B. Robust Calculation
Summary of Comments and Subcommittee Responses
The Quality Management System Approach
Related CLSI Reference Materials
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.