To ensure non-recirculated blood in the post-treatment BUN lab, use the arterial blood line port.
When collecting the post-treatment blood urea nitrogen (BUN) adequacy lab, in order to ensure that you are drawing non-recirculated blood, you should use the arterial blood line port. The arterial blood line port allows for the direct access to arterial blood, ensuring that the blood drawn for testing is fresh and has not gone through recirculation.
https://brainly.com/question/39999172