A sample collected for a prothrombin time is delivered to the laboratory 4 hours after collection.Which source of error does this represent?

Question

A sample collected for a prothrombin time is delivered to the laboratory 4 hours 	after collection.Which source of error does this represent?

Quizplus · Accepted Answer

Pre-examination errors occur before the actual testing process, such as issues with sample collection, handling, or transportation. In this case, the delay in delivering the sample to the laboratory represents a pre-examination error.

A Sample Collected for a Prothrombin Time Is Delivered to the Laboratory