tachycardia

(noun)

A rapid resting heart rate, especially one above 100 beats per minute.

Related Terms

Examples of tachycardia in the following topics:

  • Arrhythmia

    • Arrhythmias - types: Arrhythmia may be classified by rate (normal, tachycardia, bradycardia), or mechanism (automaticity, reentry, fibrillation).
    • Arrhythmias arising at the junction: Supraventricular tachycardia (SVT), Junctional rhythm, and Junctional tachycardia.
    • It is used for treatment of supraventricular tachycardias.
    • It is needed for the chaotic rhythm of ventricular fibrillation and is also used for pulseless ventricular tachycardia.
    • Rhythm originating at or above AV node constitutes supraventricular tachycardia (SVT).

  • Carotid Sinus Syncope and Massage

    • It is sometimes useful for differentiating supraventricular tachycardia (SVT) from ventricular tachycardia.

  • Signs and Symptoms of Shock

    • This leads to a rapid, weak pulse due to decreased blood flow combined with tachycardia, stimulation of vasoconstriction, and cool, clammy skin.

  • Proprioceptor Regulation of Breathing

    • Its stimulation causes a short-term increase in resting heart rate, which is called tachycardia.
    • When this process is cyclical it is called a sinus arrhythmia, which is a generally normal physiological phenomenon in which there is short-term tachycardia during inspiration.

  • Cardiopulmonary Resuscitation (CPR)

    • Defibrillation is only effective for certain heart rhythms, namely ventricular fibrillation or pulseless ventricular tachycardia, rather than asystole or pulseless electrical activity.

  • Cardiac Cycle

    • The reference range is normally between 60 bpm (lower is termed bradycardia) and 100 bpm (higher is termed tachycardia).

  • The Resistance Reaction

    • The result is: increased muscular tonus, increased blood pressure due to peripheral vasoconstriction and tachycardia, and increased glucose in blood.

  • Types of Shock

    • Typical symptoms include a rapid, weak pulse due to decreased blood flow combined with tachycardia, cool, clammy skin, and rapid and shallow breathing.

  • Sickle-Cell Disease

    • Aplastic crises are acute worsenings of the patient's baseline anemia producing pallor, tachycardia, and fatigue.

  • Absorption of Alcohol

    • This causes acetaldehyde levels to peak higher, producing more severe hangovers and other effects like flushing and tachycardia.