lead

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Related to precordial lead: ECG, electrocardiograph, unipolar leads

Lead

Payment of a financial obligation earlier than is expected or required.
Copyright © 2012, Campbell R. Harvey. All Rights Reserved.

lead

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.

The Complete Real Estate Encyclopedia by Denise L. Evans, JD & O. William Evans, JD. Copyright © 2007 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
These are precordial leads view the heart in the horizontal plane.
Methods: Right-sided precordial leads (V4R, V5R and V6R) were routinely added to standard 12-lead electrocardiogram (ECG) on all patients presenting with acute coronary syndrome at the Tygerberg cardiac unit for a 7-month period.
ECG changes are characterized by ST segment elevation and T-wave inversion in the right precordial leads in the presence of a structurally normal heart and a normal QT interval.
Right axis deviation is also characteristic of APE and is represented by negative T waves in the inferior and precordial leads [5].
A 19-year-old Chinese female student was referred to our institution for abnormal T-wave inversions on the precordial leads of a screening electrocardiogram (ECG) (Figure 1), as well as a chest X-ray (CXR) showing cardiomegaly (Figure 2).
It is characterized by persistent or transient ST elevation with successive negative T wave in the right precordial leads (V1, V2) with or without right bundle branch block in the absence of structural heart abnormalities.
The typical ECG findings in this case are an initial ST-segment elevation, followed by the so-called Wellens' pattern characterized by transient T-wave inversion in the anterior precordial leads and QT interval prolongation (5), which were not observed in our case.
Brugada syndrome is usually identified by a characteristic type 1 electrocardiography (ECG) pattern that consists of ST elevation of a coved type in the precordial leads V1 to V3.
It is an electrocardiographic manifestation of a critical proximal left anterior descending coronary artery stenosis in patients with unstable angina and is characterized by symmetrical, often deep T wave inversions in the anterior precordial leads, little or no cardiac marker elevation, discrete or no ST segment elevation and no loss of precordial R waves [6].
Repolarization abnormalities * Inverted T-waves in the right * Inverted T-waves in leads precordial leads ([V.sub.1] [V.sub.1] and [V.sub.2] in [V.sub.2], and [V.sub.3]) or individuals > 14 years of age (in beyond in individuals > 14 years the absence of complete right of age (in the absence of bundle branch block) or in complete right bundle branch [V.sub.4], [V.sub.5], or block QRS [greater than or equal [V.sub.6].
Systemic hypertension is the most common cause of inverted U waves in the left precordial leads, followed by coronary heart disease and left-sided valvular diseases (1, 4).
He had an EKG performed, which showed normal sinus rhythm with S waves in lead 1 and T-wave inversions in leads III and precordial leads. He also had a lower extremity duplex ultrasound, which was negative for thrombus.