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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.
Poor r wave progression v2 v4?
Anterior MI
Diagnosis for poor r wave progression v1-v4?
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.
Improper functioning or regulation what might lead to poor regulation of membrane permeability?
It would be helpful to include what the following is so a person will be able to know which might lead to poor regulation. Including this information will enable someone to know the right answer.
What can overgrazing and poor cultivation lead to?
desertification
Overgrazing and poor cultivation can lead to?
desertification
Do friendships lead to poor school performance?
No.No.No.No.
Does the right ventricle have oxygen-poor blood?
poor
Is lead metal or non metal?
Lead is a poor metal and (or) a metalloid: it has some amphoteric properties as well, like bismuth or arsenic. It has some fine metallic properties though.
What right maxillary sinus mucoperiosteal disease is?
This is a disease that has the symptom of chronic inflammation of the sinuses. One of the complications of the disease is poor drainage, which can lead to sinus infections, pressure, and headaches.
How can poor genes lead to extinction?
Poor genes can lead to extinction by causing lives to become shorter due to higher incidences of death by disease or weakness. These poor genes combine with other poor genes to create people or animals that are unable to live long and healthy lives.
Which heart chambers have oxygen-poor blood?
The right chambers have oxygen poor blood. The right atrium receives oxygen-poor blood from the body circulation, and the right ventricle pumps it to the lungs.
