Preanalytical Phase in Laboratory Procedures

Front

What is the first step in the preanalytical phase of sample collection?

Back

Establish documented procedures for patient preparation (fasting, posture, medications, etc.).

Front

What must be done to ensure the correct identification of the patient before sample collection?

Back

Inequivocal identification of the patient.

Front

What is important about the container used for sample collection?

Back

The correct type of container (e.g., a tube with EDTA, citrate, etc.) is important.

Front

What does the order of extraction refer to in sample collection?

Back

Following standards such as CLSI to avoid contamination between additives.

Front

What is the laboratory's responsibility regarding the competence of personnel?

Back

Supervise and verify the competence of the personnel performing the collection.

Front

What conditions must be respected by the laboratory that can influence the results?

Back

Specific conditions such as temperature, fasting, patient position, time of day, etc.

Front

What should be recorded regarding preanalytical incidents?

Back

Incidents such as hemolyzed samples, mislabeling, and nonconformities.

Front

What is the laboratory's role in training external health personnel?

Back

To inform and train external health personnel if the collection is not performed by the laboratory.

Front

What is meant by traceability in sample collection?

Back

Each sample must have a traceable record of the person who took the sample, the date and time, patient conditions, type of container used, and place of extraction.

Front

Why is traceability important in laboratory procedures?

Back

It ensures that any errors or non-conformities can be analyzed later.