Ventricular fibrillation, and supraventricular or ventricular tachycardia.
There are two drugs you get to carry around with you to keep you from dying in a chemical agent attack. One's atropine--one of the things nerve gas does to you is slows down your heart, and atropine speeds it up. The other is "2 Pam Chloride" which neutralizes the nerve agent.
Atropine increases the heart rate by increasing the sympathetic nerve stimulation while propanalol decreases the heart rate by decreasing the parasympathetic nerve stimulation.
Slow tempo will decrease your heart rate because it might put you to sleep and that would rest your heart rate.
In order to restart the heart, from asystole, drug therapy is usually required; such as epinephrine, vasopressin, or atropine. A shock may still be applied. If the heart is in arrhythmia, it will require a shock to reset the heart. CPR will not bring the heart back to a normal rhythm, or restart the heart. CPR will circulate oxygenated blood until help arrives to administer shocks or drug therapy.
Ventricular fibrillation, and supraventricular or ventricular tachycardia.
Check out the atropine page at wikipedia.org for your answer.
Atropine blocks the action of acetylcholine on the heart, leading to an increase in heart rate. When atropine is added along with acetylcholine to the frog heart, the atropine will counteract the effects of acetylcholine, resulting in a lesser decrease in heart rate compared to when acetylcholine is applied alone.
atropine
yes
It blocks the vegus nerve/ parasympathetic heart. This means that the heart rate can not be slowed down.
Physostigmine inhibit AchE (the enzyme that hadrolyse Ach), so Ach accumulate at synaptic cleft and banish the effect of atropine
atropine sulfate is used as an antidote of anticholinesterase meds administered on patients with myasthenia gravis. Atropine sulfate should be also made available when performing the Tensilon Test to reverse the effect of Edrophonium injection.
It doesn't atropine only acts on muscarinic receptors (it's a competitive antagonist here for ACh), but histamine acts on different receptors (histamine receptors). There is no direct interaction between atropine and histamine receptors
The muscarinic receptors in the vasculature are not inneravated by the parasympathetic nervous system. Therefore, atropine binds to these receptors, but causes no response since it is a pure muscarinic antagonist.
There are two drugs you get to carry around with you to keep you from dying in a chemical agent attack. One's atropine--one of the things nerve gas does to you is slows down your heart, and atropine speeds it up. The other is "2 Pam Chloride" which neutralizes the nerve agent.
Check out the atropine page at wikipedia.org for your answer.