chest lead

chest lead

[lēd]
1 an electrocardiographic conductor in which the exploring positive electrode is placed on the chest or precordium. The indifferent electrode is placed on the patient's back for a chest back (CB) lead, on the front of the chest for a chest front (CF) lead, on the left arm for a chest left (CL) lead, and on the right arm for a chest right (CR) lead.
2
Usage notes: (informal)
the tracing produced by such a lead on an electrocardiograph.
enlarge picture
Position of precordial chest leads
References in periodicals archive ?
Some misplacements, such as arm lead reversal or both electrodes of a bipolar lead on the legs resulting in miniscule P, QRS, and T voltage in that lead, are easy to recognize, as are gross chest lead misplacements, such as placing the [V.
This lead configuration allows monitoring of leads I, II, and III, or a modified chest lead (e.
Acute myocardial infarction with isolated ST-segment elevationinposterior chest leads V7-V9.
The chest leads of electrocardiogram (ECG) should be reversed but not the limb leads if not the ECG tracings can erroneously display readings of intraoperative myocardial ischemia.
1 mV) in other contiguous chest leads or the limb leads.
Respiration rate, or the number of breaths per minute, is infrequently measured outside of healthcare settings because it typically requires manual counting of breaths with a timer and then multiplying to convert to a per minute rate or chest leads or straps that are not convenient to use.
In this series of 15-lead ECG taken from 50 IWMI patients, the overall incidence of ST elevation in the posterior chest leads (V7-V9) was 26%.
Studies have shown that posterior chest leads improved the diagnostic accuracy of the ECG for the detection of posterior myocardial infarction (MI) 14, 15.
Her examination showed pulse:97/min; BP: 135/81mmHg; RR:20/min; SpO2:89-92% with FiO2 at 2L/min; ECG showed normal sinus rhythm with tachycardia, T-wave inversions in lead III and V1, strain pattern in anterior chest leads, right ventricular hypertrophy; Clubbing in both hands, mild peripheral and central cyanosis with pale complexion.
The 80-lead system includes a single-use disposable vest with 64 embedded anterior and 16 posterior chest leads, along with a computer that enables physicians to view the data as integrated three-dimensional color maps.
On review, the preoperative ECG showed significant ST segment elevation in chest leads which was missed by our 3-lead ECG monitor.