👉 A non-contrastable term is a term used in the medical field that refers to a diagnostic test or procedure that does not require an external imaging (like X-rays, CT scans, MRI scans) to be performed. This means that the test or procedure can be done without any visual evidence of the presence or absence of a condition being tested for. For example, a non-contrastable blood test would involve taking a sample from a vein and analyzing it without seeing if there is an abnormality
