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what does a q wave mean on an ekg

A 43-year-old member asked:
Dr. Mark Rasak
32 years experience Cardiology
Depends: Q waves if noted on an EKG can indicate an old heart attack or a normal variant. A hypertrophic cardiomyopthy pt can also have q waves. Clinical corre ... Read More

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A 43-year-old member asked:
Dr. Ankush Bansal
16 years experience Internal Medicine
Old infarct: A Q wave means an old infarct (a previous heart attack) that resulted in permanent death of a part of the heart muscle. Depending on the location, ext ... Read More
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A 51-year-old male asked:
Dr. Elizabeth Wallen
34 years experience Pediatrics
Pathological q waves: Are changes commonly seen on the EKG after a heart attack. They reflect an area of damage or scarring. Usually they are a permanent change on the EK ... Read More
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A 40-year-old member asked:
Dr. Mark Stern
45 years experience Cardiology
Not necessarily: A Q wave on an EKG can have many causes including lead placement or even the position of the heart in the chest and only if there are multiple ones i ... Read More
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A 44-year-old female asked:
Dr. Diana Metzger
29 years experience Cardiology
Buy an ECG textbook: The deflections of the lines on an ECG are given names: the P wave is atrial depolarization, the next downward deflection is the q wave, then up is t ... Read More
A 60-year-old female asked:
Dr. Calvin Weisberger
50 years experience Cardiology
ECG: On an ecg there are Q waves and QT intervals. Q waves can mean scar in the heart, long QT interval can mean abnormal electrolyte concentrations or be ... Read More
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A member asked:
Dr. William Harris
32 years experience Family Medicine
Very detailed read: Q-waves on a particular set of leads tells us you had a heart attack some time in the past (age indeterminate = don't know when). The v-leads tell us ... Read More
A 40-year-old member asked:
Dr. Jerry Routh
45 years experience Internal Medicine
Heart Damage: A "q wave" is seen on an electrocardiogram (ekg) several of which are recorded during a stress test. Q waves may be very small and not carry much sig ... Read More
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A 25-year-old female asked:
Dr. Harinder Gill
38 years experience Cardiology
Delta wave: Reflects abnormal conduction potentially risking rhythm disturbances;needs formal evaluation by cardiology electrophysiology
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A 56-year-old member asked:
Dr. Ehab Kasasbeh
19 years experience Cardiology
Varies: Depending on what the other indicators in history and physical and presentation are this could be a nonspecific finding could also represents ongoing ... Read More
A member asked:
Dr. Brian Mott
28 years experience Thoracic Surgery
Read on: Nsr is normal sinus rhythm. Lbbb is left bundle branch block.
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A 44-year-old female asked:
Dr. Elden Rand
20 years experience Cardiology
Likely normal: Rsr', pronounced 'r s r-prime' can be a normal finding in leads v1 and v2. This pattern is often found in young healthy people. An rsr' with wid ... Read More
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A 44-year-old female asked:
Dr. Holly Maes
35 years experience Pediatrics
Many causes: Elevated t-waves can have a variety of causes. Heart conditions, such as poor blood flow through coronary arteries, can cause elevation. So can abnorm ... Read More
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A 40-year-old member asked:
Dr. Calvin Weisberger
50 years experience Cardiology
ECG: Left ventricular obstruction has no meaning on an ecg. Left ventricular outflow tract obstruction can cause the left ventricle to hypertrophy anatomic ... Read More
A 40-year-old female asked:
Dr. Robert Isaacs
38 years experience Family Medicine
EKG low voltage: Low voltage means that what are called the qrs complexes are smaller than usual. There are many possible reasons, including a barrel chest, copd, car ... Read More
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A 44-year-old member asked:
Dr. Calvin Weisberger
50 years experience Cardiology
ECG: the T wave follows the QRS and represents repolarization of the ventricles j
A 49-year-old female asked:
Dr. Calvin Weisberger
50 years experience Cardiology
EKG : Low voltage is a variant of normal. It can be seen however in a lot of pathological states. Your doctor can advise you if it should be evaluated or no ... Read More
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A 39-year-old female asked:
Dr. Harinder Gill
38 years experience Cardiology
ECG: Probably a normal ECG,NOT modifiable by ablation; so forget it and don't worry.
A 40-year-old member asked:
Dr. Payam Mehranpour
22 years experience Cardiology
Can't tell: Not sure what "incomplete" would be referring to if it's not associated with any other phrase. It may be followed by other information, e.g. Incomplet ... Read More
A 24-year-old female asked:
Dr. Michael Kleerekoper
50 years experience Endocrinology
Flat line: To my understanding it means the studies were not performed correctly. Please check with your doctor.
A 42-year-old member asked:
Dr. Calvin Weisberger
50 years experience Cardiology
ECG : Borderline t abnormalities have little significance.
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A 43-year-old member asked:
Dr. Sreenu Chakumgal
11 years experience Family Medicine
Bundle branch block: Usually it means a bundle branch block but uncommonly it can mean other things.

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