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Poor R wave progression is a vague term used to describe a variation in the pattern formed by the QRS complexes in the chest or precordisl leads. The QRS complex represents the upward and downward deflections denoting the electrical discharge with each heartbeat. Normally the R wave is taller than the S wave by the 4th lead (V4). If the transition does not occur until the 5th or 6th precordisl lead then this is commonly referred to as poor R wave progression. It is used as a distinction from clearly normal patterns and clearly abnormal patterns. It may be found in normal hearts and can frequently be caused by improper placement of the electrodes during the recording of the ECG tracing.
Wiki User
∙ 12y ago
Wiki User
∙ 9y agoPoor R-wave progression is a common ECG finding that is often inconclusively interpreted as suggestive, but not diagnostic, of anterior myocardial infarction (AMI). Recent studies have shown that poor R-wave progression has the following four distinct major causes: AMI, left ventricular hypertrophy, right ventricular hypertrophy, and a variant of normal with diminished anterior forces. Standard ECG criteria that identify and distinguish these causes have been developed. An interpretive approach to the ECG with poor R-wave progression is presented that has clinical relevance in the daily treatment of patients.
Wiki User
∙ 12y agoCOPD ,
old anterior wall MI,
a lower cardiothoracic ratio in normal pts.
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Poor r wave progression v2 v4?
Anterior MI
What does a poor R wave progression mean in a cardiogram?
Poor R wave progression is a vague term used to describe the transition in voltage in the precordial leads of an electrocardiogram (ECG). It is not a diagnosis but simply describes a pattern frequently noted. In a "normal" individual there is a progressive increase in the magnitude of the voltage in the leads from V1 to V4. When the peak voltage occurs later than V4 it is considered diminished or delayed. The normal criteria are very old and were likely based upon pathologic data. Current ECG technology includes computer interpretation. This particular pattern is usually reported out as "cannot rule out anterior myocardial infarction." The placement of the precordial leads is paramount in obtaining a reliable ECG pattern. Frequently the precordial leads are placed in the wrong position in haste to obtain the electrocardiographic tracing. Women particulary large breasted are most likely to have the leads improperly placed as the left breast usually overlies the 4th and sometimes the 5th intercostal space (where the leads should be placed). In summary, the term poor R wave progression is a vague term and not a diagnosis. Verification of proper leads placement should be the first response followed by echocardiography if there remains concern that there has been prior myocardial injury.
What is an ultrasonic wave used in the medical diagnosis of the baby?
ultra sonic wave is less then 20khz so v r not hereing not seeing
Uniform wave motion consists of a progress of a progression of wave crests and troughts counting the number of crests that pass a fixed point in a one-second time interval measures the what of the wa?
The number of crests that pass a fixed point in a one-second time interval is called the "frequency" of the wave. It's also equal to the (speed of the wave) divided by the (wavelength)
What is uscom?
Ultrasonic Cardiac Output Monitor, non-invasive and accurate monitor of cardiac output for diagnosis via Continuous wave Doppler echocardiography.www.uscom.com.au/
What wave use to diagnosis of bone fracture?
X-rays help doctors see broke bones, and also diseases inside of a human body.
Is wave a common noun?
Common noun: A wave, the wave. Verb: I wave, you wave, we wave, they wave.
What part of the electromagnetic spectrum does the ultrasonic wave falls into?
An ultrasonic wave is not an electromagnetic wave; it is a sound wave.An ultrasonic wave is not an electromagnetic wave; it is a sound wave.An ultrasonic wave is not an electromagnetic wave; it is a sound wave.An ultrasonic wave is not an electromagnetic wave; it is a sound wave.
When was Wave on Wave created?
Wave on Wave was created in 2002.
Is a tidal wave a mechanical wave?
A tidal wave is a water wave so it is a mechanical wave.
What type of wave is sound wave?
A sound wave is considered a sinusoidal wave.
Is a sound wave a electromaginic wave?
No. A sound wave is a pressure wave.
