LOINC Code 70665-5: Cold agglutinin 18 degree C incubation Ql (S)

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 Cold agglutinin. It is commonly used with the system or sample type Ser.

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
• Method: 18 deg C incubation

What it does not mean

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

Key facts

• Cold agglutinin [Presence] in Serum by 18 degree C incubation
• Cold agglutinin
• Cold agglutinins are usually determined at refrigerator temperatures (4 degrees C). In positive cases, surgeons may request testing at additional temperatures, including 18 degrees C, room temperature (22 degrees C), and 28 degrees C, to determine how cold the patient's body temperature can be dropped during surgery. In cardiovascular surgery, the heart is cooled to 25°C to slow down metabolic processes. Since the blood of patients with a history of cold antibodies or cold hemagglutinin disease (such as Raynaud's) is likely to contain cold antibodies, such as anti-M, anti-I and anti-I, testing at various temperatures is performed in order to prevent an acute hemolytic episode.
• Agglut; Agglutination; Agglutinins; Agglutins; AGT; CA; Cold agglutinin titration; degree; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Screen; Serology; Serum; SR

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