4 doctors weighed in:
What would cause ventricular irrability?
4 doctors weighed in

Dr. Vasudev Ananthram
Internal Medicine - Cardiology
2 doctors agree
In brief: Cellular level
Irritability refers to enhanced ability of the heart cells to generate an electrical impulse (known as action potential).
This happens when a substance referred to as cyclic amp increases in the heart cell causing increased entry of calcium into the cell. With increased calcium, the heart cell both fire impulses rapidly as well as contract vigorously. I will go over some of the causes next.

In brief: Cellular level
Irritability refers to enhanced ability of the heart cells to generate an electrical impulse (known as action potential).
This happens when a substance referred to as cyclic amp increases in the heart cell causing increased entry of calcium into the cell. With increased calcium, the heart cell both fire impulses rapidly as well as contract vigorously. I will go over some of the causes next.
Dr. Vasudev Ananthram
Dr. Vasudev Ananthram
Thank
Dr. Vasudev Ananthram
Internal Medicine - Cardiology
1 doctor agrees
In brief: Causes are many many
Some of the causes that may increase irritability include anything that results in high adrenaline levels (fear, anxiety, dehydration, pain, anemia , severe other illness etc.
), low potassium and magnesium levels, high calcium levels, medication such as cold remedies with decongestants, excessive alcohol and caffeine, inflammation or injury to the heart muscles as in heart attack and myocarditis.

In brief: Causes are many many
Some of the causes that may increase irritability include anything that results in high adrenaline levels (fear, anxiety, dehydration, pain, anemia , severe other illness etc.
), low potassium and magnesium levels, high calcium levels, medication such as cold remedies with decongestants, excessive alcohol and caffeine, inflammation or injury to the heart muscles as in heart attack and myocarditis.
Dr. Vasudev Ananthram
Dr. Vasudev Ananthram
Thank
Get help from a real doctor now
Dr. Tonga Nfor
Board Certified, Internal Medicine - Cardiology
12 years in practice
508K people helped
Continue
108,000 doctors available
Read more answers from doctors