Clinical Chemistry Laboratory Management

Front

What is the definition of quality in the laboratory?

Back

A measure of accuracy, reliability, and timeliness; degree of excellence a product or service provides in compliance with user requirements.

Front

What are the three phases of Quality Assurance?

Back

Pre-analytical phase, Analytical phase, and Post-analytical phase.

Front

What is the purpose of Quality Control in a laboratory?

Back

To monitor lab results in terms of accuracy and precision according to specified criteria.

Front

What does the term 'Reliability' refer to in clinical chemistry?

Back

The ability of the test to maintain accuracy and precision over time, regardless of changes in the lab.

Front

What is the difference between Control and Standard in laboratory testing?

Back

Control has a range of values and is used for quality control, while Standard has one exact value and is used for calibration.

Front

What is the significance of the Gaussian Distribution in laboratory data?

Back

It is assumed that measurement values will follow a normal distribution, with specific percentages of values falling within certain standard deviations.

Front

What is the purpose of establishing Reference Intervals?

Back

To provide a basis for diagnosis and to define the observation ranges for a particular type of quantity.

Front

What is the difference between Normal Range and Therapeutic Range?

Back

Normal range corresponds to the central 95% of results from a healthy population, while Therapeutic range applies to patients undergoing treatment.

Front

What are the two types of errors in laboratory testing?

Back

Random Error and Systematic Error.

Front

What is the role of the Levey-Jennings QC Chart?

Back

To represent acceptable limits of variation in results and to identify random and systematic errors.