Electrocardiograms Flashcards

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1
Q

What is a P-wave

A

Represents the depolarisation of atria as impulse passes from SAN to AVN

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2
Q

What is the QRS complex

A

Represents the depolarisation of ventricles as impulse passes from bundle of his to purkinje fibres

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3
Q

What is a T-wave

A

Represents the re polarisation of ventricles

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4
Q

What happens after depolarisation of atria

A

Impulse is held at the AVN before moving down bundle of his

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5
Q

What does it mean when pQRST cycles are too close together

A

There is a high HR sinus arrhythmia meaning HR is too fast

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6
Q

What is tachycardia

A

A heart condition where the resting heart rate is over 100bpm

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7
Q

What is bradycardia

A

When the HR is abnormally slow (under 60Bpm) in an ECG the PQRST cycles will be very spread out

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8
Q

What is an ecoptic heartbeat

A

Irregular PQRST cycles

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9
Q

Atrial fibrillation

A

When there is a lack of coordinates atrial depolarisation
There will be no P wave on an ECG

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10
Q

What is ventricular fibrillation

A

Lack of coordinated ventricular

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