Lateral Infarct Age Undetermined Free

Isolated Q waves in V5-V6 with normal R waves and no Q in I/aVL are usually septal Q waves (normal). True lateral infarct affects both limb and precordial lateral leads.

: If you are currently having chest pain, doctors check these blood markers to see if there is any active heart muscle damage. lateral infarct age undetermined

Is this an old, silent infarct—or a normal variant? Isolated Q waves in V5-V6 with normal R

The doctor shrugged, already moving the wand across the gel-slicked chest, hunting for other ghosts. "It’s scar tissue. The heart doesn't keep a calendar. It could have been a silent event last month. It could have been a spasm of arteries ten years ago that you wrote off as heartburn. The lateral wall is damaged. The muscle is dead. But as to when it died?" The doctor looked at him, eyes flat. "The body keeps the score, but it doesn't keep the ledger." Is this an old, silent infarct—or a normal variant

Lateral Infarct, Age Undetermined: A Practical ECG & Clinical Approach

The term "age undetermined" (or "age indeterminate") is used when the ECG shows evidence of a completed infarct without signs of ongoing, acute injury.

| | Normal Variant / Mimic | |-------------------------------|----------------------------| | Q waves in both limb leads (I, aVL) and precordial leads (V5-V6) | Septal Q waves (narrow, <0.04s, in V5-V6 alone) | | Associated with regional wall motion abnormality on echo | No wall motion abnormality | | History of CAD or equivalent (DM, CKD, PAD) | Young, athletic, low pretest probability | | Loss of R wave + Q wave in same lead | Isolated Q wave with normal R wave |