LOINC Code 74878-0: C0 post therapeutic diet (DBS) [Moles/Vol]

What is this code?

LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Carnitine.free (C0)^post therapeutic diet. It is commonly used with the system or sample type Bld.dot.

When is it used?

• Used in lab systems, EHRs, and clinical data exchange.
• May identify a test, observation, survey item, or clinical document request rather than a diagnosis.
• Status: ACTIVE
• Order vs observation: Both

What it does not mean

• The code identifies the observation or test, not the actual result.

Key facts

• Carnitine free (C0) [Moles/volume] in DBS --post therapeutic diet
• Carnitine.free (C0)^post therapeutic diet
• This test measures the free carnitine (C0) level in children who have been diagnosed with carnitine uptake defect and are on a therapeutic diet for their condition. Dried blood spot specimens are sent to the lab for monitoring tests periodically. The C0 level is used to monitor the patient's progress.
• After; Blood; C0; Carnitine Free; Carnitine.total; CHEMISTRY.CHALLENGE TESTING; DBS; Dried blood spot; FC; Filter paper; FP; FR; Level; Non-protein bound; p diet; Point in time; PST; QNT; Quan; Quant; Quantitative; Random; Substance concentration; Ther; WB; Whole blood

Where you may see this code

You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges.

Common synonyms

Frequently asked questions