Blog Viewer

The Essence: The Best of June 2022

By Anne-Margaret Olsson posted 07-15-2022 14:32

The Artery is your community for finding solutions to your day-to-day clinical chemistry questions. Last month, several answers were found to questions ranging from "What exactly is an LDT?" to “Do any labs correct for the patient’s body temperature on a blood gas analyzer?".  Read on for the most discussed on the Artery in June.

What Exactly Is an LDT?
@Elizabeth Champion-Lyons ASCP, MT (ASCP)

With Congress considering legislation that could severely restrict the ability of labs to perform LDTs, lab professionals have noted a wide array of definitions for what an LDT is. Some define LDTs as “a type of in vitro diagnostic test that is designed, manufactured, and used within a single laboratory.” Others ask their accrediting body about the test. How would you define an LDT?

Identifying Macrotroponin T
@Roger Bertholf, PhD, DABCC, FADLM

A patient has a persistently elevated amount of troponin T with a negative troponin I and no apparent cardiopathy. This could be a sign of macrotroponin T or heterophile antibodies. Arterians discuss the various ways a laboratory professional can approach testing a patient who has macrotroponin T.

Correcting Patient Body Temperature on a Blood Gas Analyzer
@Mary Coleman

Do any labs correct for the patient’s body temperature on a blood gas analyzer? What happens when the patient experiences extreme hypothermia before their blood gas analysis? An in-depth discussion on the Artery highlights different viewpoints and scenarios surrounding this question.