Pre-Analytical Variables

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Presentation transcript:

Pre-Analytical Variables Muhsen Alkurdi Medical Affairs Consultant BD

The total testing cycle

Specimen Workflow

Specimen management process: causes errors

Factors contributing to increase the pre-analytical errors

Pre-analytical factors

Fixed pre-analytical factors

Variable pre-analytical factors

Specimen Identification and Labeling

Identification errors in Clinical Laboratory

Practices that reduce specimen Identification errors

Specimen labeling issues

Label misalignment can cause increased cost

Cost of specimen relabeling

Impact of collection and processing practices

Specimen quality: Syringe vs Evacuated tube

Specimen quality: IV catheter vs Evacuated tube

Correlation of hemolysis with the catheter dimension

Order of draw

Specimen mixing

Transport related causes

Reasons for rejection chemistry and hematology specimens

Hemolyzed specimens

Incomplete clotting

Insufficient quantity

Cost of poor specimen quality

Impact of pre-analytical variables on patient safety

Pre-analytical variables have to be managed

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