Local anesthetics inhibit nerve conduction in a reversible manner without altering the nerve. The inhibition appears rapidly and for a longer or shorter duration depending on the products and the concentrations used. The extent of the territory rendered insensitive to pain depends on the modes of administration of the local anesthetic, either at the level of the nerve endings, or at the level of a nervous trunk, for example.
They act at the level of the neuronal membrane by interfering with the process of excitation and conduction. The anesthetic crosses the axon membrane, rich in lipids, in the form of base before taking up a cationic form on the internal face of the neuron where the pH is more acidic.
At this level, there is a blockage of nerve conduction by decreasing the membrane permeability to sodium ions that occurs during the depolarization phase. As the progression of the anesthetic action along the nerve increases, the threshold of excitability increases and the conduction time increases. This is completely blocked from a certain concentration of local anesthetic.
The nerve fibers are unequally sensitive to the action of local anesthetics: they disappear in order: the painful, thermal, tactile sensations.
Answer: Option C
Explanation:
This condition man is due to cardiac arrest and the treatment that could have been done is CPR and then defibrillation.
The cardiac arrest can be defined as the condition by which there is a abrupt loss of heart function who may or may not be diagnosed with heart disease.
It can be fatal if not cured properly and immediately. It can be cured by providing CPR and defibrillation which cure this problem.
hence,the correct answer is option C
Answer:
1 – Write A To Do List.
2 – Remove Yourself From Distraction.
3 – Take Breaks When Working.
4 – Break Big Tasks Up Into Smaller Chunks.
5 – Find Your Most Productive Times.
Explanation:
These are the five time-management tips which would be the most helpful for me while doing my work. By knowing exactly what it is needed to be done on any given day, you are save your time from wasting. Distraction slows down your work so avoid distraction related things. Take some rest while doing your work in order to refresh your mind. Divide the tasks into small pieces in order to make it easy to be done. Work at that time of the day in which you are more focus and active.
