The majority of cases of vasovagal syncope occur within which of the following time frames following vaccination?
a) 10 minutes
b) 15 minutes
c) 20 minutes

The answer is letter A, 10 minutes.

Explanation:

Vasovagal syncope is also known as "neurocardiogenic syncope." This happens when a person faints due to some triggers following vaccination. The trigger could be the sight of blood or the body's blood pressure suddenly drops. Although this is not a serious condition, it should be monitored or treated.

The majority of cases of vasovagal syncope occur immediately within minutes of receiving the vaccine. It could happen during or after the vaccination. Thus, the answer is letter a, 10 minutes (since this is the shortest time frame).

Vasovagal episodes should be distinguished from anaphylaxis episodes. Anaphylaxis usually occur within 15 minutes to an hour of receiving the vaccine.

Vasovagal syncope causes some of the following symptoms: nausea, vomiting, cool clammy skin, hypotension, bradychardia, loss of consciousness, etc.

what effect does exercise have on the nervous system?

the answer is c.

since you have not provided the options here i   am going to give you general overview about hormone.hormone are actually the part of endocrine system in our body and produced by the endocrine glands. the hormones act like a chemical messenger   within human body. once produce by the glands they   travel through the blood stream and reach at specific or target tissue and organs   which result in control of our body function. the hormones are specific in their work and work on only the targeted tissue or organ   . with the of hormone endocrine system regulate the heart rate , metabolism, our mood and   growth as well as the development and even the sleeping cycle etc. they actually are the messenger for body cell and organs .