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2. Adenosine - Wikipedia

   en.wikipedia.org/wiki/Adenosine

   However, the ventricular response rate is temporarily slowed with adenosine in such cases. [8] Because of the effects of adenosine on AV node-dependent SVTs, adenosine is considered a class V antiarrhythmic agent. When adenosine is used to cardiovert an abnormal rhythm, it is normal for the heart to enter ventricular asystole for a few seconds ...

3. Cardiac stress test - Wikipedia

   en.wikipedia.org/wiki/Cardiac_stress_test

   This stress response can be induced through physical exercise (usually a treadmill) or intravenous pharmacological stimulation of heart rate. [1] As the heart works progressively harder (stressed) it is monitored using an electrocardiogram (ECG) monitor. This measures the heart's electrical rhythms and broader electrophysiology. Pulse rate ...

4. Antiarrhythmic agent - Wikipedia

   en.wikipedia.org/wiki/Antiarrhythmic_agent

   Reduce ventricular rate in patients with atrial fibrillation; V Adenosine; Digoxin; Magnesium sulfate; Work by other or unknown mechanisms Contraindicated in ventricular arrhythmias; Adenosine is used to treat supraventricular tachycardias, especially in heart failure and atrial fibrillation [9]

5. Adenosine receptor - Wikipedia

   en.wikipedia.org/wiki/Adenosine_receptor

   Caffeine keeps you awake by blocking adenosine receptors. Each type of adenosine receptor has different functions, although with some overlap. [3] For instance, both A 1 receptors and A 2A play roles in the heart, regulating myocardial oxygen consumption and coronary blood flow, while the A 2A receptor also has broader anti-inflammatory effects throughout the body. [4]

6. Your resting heart rate can tell you a lot about your health ...

   www.aol.com/finance/resting-heart-rate-tell-lot...

   Resting heart rate is related to a person’s cardiovascular training, says Dr. Joseph Ebinger, director of the coronary intensive care unit at the Smidt Heart Institute at Cedars-Sinai Medical ...

7. What Doctors Want You to Know About Coffee’s Health Benefits

   www.aol.com/doctors-want-know-coffee-health...

   “The caffeine in coffee can lead to increased heart rate and blood pressure, ... When you drink coffee, Dr. Wu says the caffeine acts as a stimulant by blocking adenosine, the neurotransmitter ...

8. Adenosine A1 receptor - Wikipedia

   en.wikipedia.org/wiki/Adenosine_A1_receptor

   This makes adenosine a useful medication for treating and diagnosing tachyarrhythmias, or excessively fast heart rates. This effect on the A 1 receptor also explains why there is a brief moment of cardiac standstill when adenosine is administered as a rapid IV push during cardiac resuscitation .

9. Cardiac excitation-contraction coupling - Wikipedia

   en.wikipedia.org/wiki/Cardiac_excitation...

   This rate can be altered, however, by nerves that work to either increase heart rate (sympathetic nerves) or decrease it (parasympathetic nerves), as the body's oxygen demands change. Ultimately, muscle contraction revolves around a charged atom (ion) , calcium (Ca 2+ ) , [ 3 ] which is responsible for converting the electrical energy of the ...