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Related to precordial lead: ECG, electrocardiograph, unipolar leads


Payment of a financial obligation earlier than is expected or required.


A heavy metal shown to cause learning disabilities, behavioral problems, seizures, and even death in children.The Environmental Protection Agency (EPA) estimates that 3 to 4 million children had elevated lead levels in their blood in 1978. The number has now been reduced to several hundred thousand, but elevated lead levels in blood is still the leading environmentally induced illness in children.

Federal law that went into effect in 1996 requires sellers and landlords of properties built before 1978 (when lead-based paint became illegal) to do the following before any contract or lease becomes final:

1. Provide a copy of the EPA booklet, “Protect Your Family from Lead in Your Home.”
2. Disclose any known information concerning lead-based paint or lead-based paint hazards.
3. Provide any records and reports on lead-based paint and/or lead-based paint hazards.
4. Include an attachment to the contract or lease (or language inserted in the lease itself) that includes a lead warning statement and confirms that the seller or landlord has complied with all notification requirements.
5. Provide home buyers a 10-day period to conduct a paint inspection or risk assessment for lead-based paint or lead-based paint hazards.

References in periodicals archive ?
Also, it should be considered in patients with right precordial leads ([V.
His electrocardiogram remained abnormal, with T-wave inversion on the precordial leads and disappearance of the ST-segment abnormalities.
Brugada syndrome was first described in 1992 as a new autosomal dominant inherited channelopathy occurring in the structurally normal heart, characterized by ST-segment elevation in the right precordial leads, right bundle branch block, and susceptibility to ventricular tachyarrhythmia's (1).
An electrocardiogram showed mild ST-segment elevation with Q waves in the precordial leads and widening of the QRS complex.
After DC, control ECG showed right bundle branch block with epsilon wave in V1 and ST segment depression in precordial leads (V2-V4) (Fig.
An initial electrocardiogram (ECG) demonstrated deep, symmetric T wave inversions in the inferior and lateral leads followed by large negative deflections, of varying amplitude, most prominent in the lateral precordial leads (Figure).
Baseline ECG revealed a right bundle branch block, inverted T waves in the anterior precordial leads, and epsilon waves (low amplitude signals between the end of the QRS complexes and the onset of the T waves; see arrows) (Figure 1).
An electrocardiogram now showed deep T-wave inversions in the precordial leads (Figure 1b).
The initial 12-lead electrocardiogram showed sinus rhythm with 2:1 AV block, right bundle branch block, left anterior fascicular block, and ST-segment depression in precordial leads V1 to V3 (Figure 1).
Incomplete right bundle branch block and ST-T wave abnormalities in precordial leads as in our patient can be seen as the ECG changes (1,2, 7).
The Table lists many of the causes of tall R waves in the right precordial leads and confirming clues to their diagnoses (1).