LOINC Code 91546-2: ST deviation (Maximum value during study) by EKG

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 ST deviation. It is commonly used with the system or sample type Heart.

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: EKG

What it does not mean

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

Key facts

• ST deviation (Maximum value during study) by EKG
• ST deviation
• ST-segment deviation represents the maximum ST deviation during a procedure such as an exercise stress test. In some contexts the maximum ST deviation may be defined more specifically, such as in the Duke Treadmill Score, which states that the ST deviation measurement should exclude any leads other than aVR that have pathological Q waves, and that it can be calculated during or after exercise.
• Cardiac; ECG; EKG.MEASUREMENTS; Electrical potential; Electrocardiogram; Electrocardiograph; Hrt; Maximum; QNT; Quan; Quant; Quantitative; Studies; Study; Sutdies; Voltage

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