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Stock image Atrial Premature Contractions

stock image Atrial focal originating in the left upper pulmonary vein, with an upright P wave in V1 and wide duration,  inverted P wave in lead aVL and an upright P wave with notch in inferior leads.

Atrial Focal Originating In The Left Upper Pulmonary Vein, With An Upright P Wave In V1 And Wide Duration, Inverted P Wave In Lead AVL And An Upright P Wave With Notch In Inferior Leads.

Image, 12.65MB, 10000 × 5632 jpg
stock image When ectopic impulses from the anterior wall of the right atrium produce a completely negative P wave in lead V1, the posterior wall ectopic impulse produces a positive and negative biphasic P wave.

When Ectopic Impulses From The Anterior Wall Of The Right Atrium Produce A Completely Negative P Wave In Lead V1, The Posterior Wall Ectopic Impulse Produces A Positive And Negative Biphasic P Wave.

Image, 10.39MB, 10000 × 5071 jpg
stock image When the rhythm of the atria originates in the lower part of the atria, the whole atria are excited from inferior to superior, producing negative P waves in the inferior leads.

When The Rhythm Of The Atria Originates In The Lower Part Of The Atria, The Whole Atria Are Excited From Inferior To Superior, Producing Negative P Waves In The Inferior Leads.

Image, 11.92MB, 10000 × 8280 jpg
stock image When the rhythm of the atria originates in the lower part of the atria, the whole atria are excited from inferior to superior, producing negative P waves in the inferior leads.

When The Rhythm Of The Atria Originates In The Lower Part Of The Atria, The Whole Atria Are Excited From Inferior To Superior, Producing Negative P Waves In The Inferior Leads.

Image, 5.37MB, 10000 × 2931 jpg
stock image When ectopic impulses from the anterior wall of the right atrium produce a completely negative P wave in lead V1, the posterior wall ectopic impulse produces a positive and negative biphasic P wave.

When Ectopic Impulses From The Anterior Wall Of The Right Atrium Produce A Completely Negative P Wave In Lead V1, The Posterior Wall Ectopic Impulse Produces A Positive And Negative Biphasic P Wave.

Image, 8.22MB, 10000 × 6252 jpg
stock image On a 12 lead electrocardiogram, analyzing the morphology and polarity of ectopic P-waves can determine the approximate anatomical location of ectopic atrial foci.

On A 12 Lead Electrocardiogram, Analyzing The Morphology And Polarity Of Ectopic P-waves Can Determine The Approximate Anatomical Location Of Ectopic Atrial Foci.

Image, 6.95MB, 10000 × 5782 jpg
stock image When ectopic impulses originate in the left atrium, an upright P wave will be generated in V1 and an inverted P wave in lead aVL.

When Ectopic Impulses Originate In The Left Atrium, An Upright P Wave Will Be Generated In V1 And An Inverted P Wave In Lead AVL.

Image, 7.38MB, 10000 × 6060 jpg
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