isoelectric line
Medical term EKG and Cardiovascular Testing
The flat baseline on an EKG when no electrical activity is recorded.
Sources
Related terms
- electrocardiogramA tracing of the heart's electrical activity recorded from electrodes on the skin.
- electrodeA sensor placed on the skin that picks up the heart's electrical signals for the EKG.
- heart blockAn interruption in the heart's normal electrical conduction pathway, such as an AV block.
- Holter monitorA portable EKG recorder worn during normal activity, usually for 24 to 48 hours (Merck: 24 hours to 14 days).
- leadA view of the heart's electrical activity, recorded as the voltage difference between electrodes; the word…
- limb leadsThe six frontal-plane views of a 12-lead EKG: leads I, II and III and the augmented leads aVR, aVL and aVF.
- murmurAn unusual heart sound heard with a stethoscope, often from a valve or septal defect.
- normal sinus rhythmThe normal heart rhythm, started by the sinus (SA) node at a normal rate.