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Atrial fibrillation
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∙ 13y ago
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What is the medical term meaning Rapid but regular atrial or ventricular contractions?
Tachycardia
What are the pathways through the body for electrical impulses?
in what order do the structures of the neuron carry the electrical signal?
Is it possible that excess adrenaline causes atrial fibrillation?
Yes. Excess adrenaline causes Adrenergic Atrial Fibrillation.
Atrial repolarization coincides in time with?
Atrial repolarization coincides with the QRS complex on the ECG. The T-wave corresponds to Ventricular repolarization. 'with tHE t-wave' <-- WRONG
What two heart chambers contract last in a normal cardiac cycle?
FIRST: Atrial contractions: - Right atrium forces the blood into the Right ventricle (through the tricuspid valve) - Left atrium forces the blood into the Left ventricle (through the the Mitral (or Bicuspid valve) FOLLOWED BY: Ventrical conctractions: - Right ventricle forces the blood into the Pulmonary trunk (through the Pulmonary semilunar valve) - Left ventricle forces the blood into the Aorta (through the Aortic semilunar valve). Contractions in both atrium happen simultaniously, just like contractions in both ventricles. More info can be found on http://en.wikipedia.org/wiki/Heart
Atrial ectopic beats are the same as?
premature atrial contractions (PAC)
What is the layer of the heart that produces its contractions?
The contractions start from a node in the myocardiumcalled the SA node (sino-atrial node), which produces the stimulatory signals in a rhythmic mode. As the stimulatory signals move throughout the myocardial muscle, it contracts.
Abbreviation for atrial contractions that are premature?
pac
What is the medical term meaning rapid unsynchronized contraction of the ventricles?
Ventricular fibrillation is the term for rapid irregular contractions of the ventricles. Because the contractions are unsynchronized and random, the ventricles do not pump effectively. The patient may have no palpable pulse, and the condition can be fatal.
What is the medical term meaning Rapid but regular atrial or ventricular contractions?
Tachycardia
Rapid and dangerously uncoordinated ventricular contractions are called?
Rapid and dangerously uncoordinated ventricular contractions is called ventricular fibrillation, or v-fib. During v-fib, the ventricle is not pumping blood to the body, and thus v-fib is known as a lethal dysrhythmia.
Proxysmal atria tachycardia characterized by burst of atrial contractions with little pause between them?
True
What does arrhythmia mean?
A condition in which the heart beats with an irregular or abnormal rhythm. Could be PVCs (Premature Ventricular Contractions), slow heart rate (<60 bpm = bradycardia), fast heart rate (>100 bpm = tachycardia), atrial fibrillation, and more
What type of meds use for premature atrial contractions?
Typically beta blockers, but only if the patient is symptomatic.
What is an atrial couplets?
Atrial couplets refer to two consecutive premature atrial contractions (PACs) that occur in the heart. These are abnormal heartbeats originating in the atria, which can disrupt the normal rhythm of the heart. It is important to monitor and manage atrial couplets as they may sometimes progress to more serious arrhythmias.
What is the duration of a P wave?
The P wave refers to the electrocardiographic representation of electrical activation of the atrial myocardium. It can be measured using an electrocardiogram.
How does multifocal atrial tachycardia progress?
Atrial fibrillation can be caused by the multifocal atrial tachycardia progression. The multifocal atrial tachycardia, mostly, progress and presents itself as other forms of atrial tachycardia, including but not limited to, tachycardia-induced cardiomyopathy.
