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It depends on the person but typically 60-100 is within normal ranges.
Becauas it is different
Normal serum pH is slightly alkaline and ranges from 7.35-7.45
how many people get mononucleosis per year and whats the normal age to get it?
Mononucleosis can affect anyone, regardless of their race, age or gender. It is, however, most common in teenagers and young adults because of their sometimes indiscriminate sharing of germs.
If you mean lymphocyte, as a percent of total white cells the normal range for adults is 18-40%. 21% is toward the low end but falls within the normal range.
10 - 15 mm Hg.
it's very high. normal levels (in adults) range from 4,300 - 10,800 (or 4.3 - 10.8)
98.6 degrees F.
A normal resting heart rate for a healthy adult is 70 bpm (beats per minute).
What is the normal range?
Because people vary. As an example, adults have different heights. You can decide what you think is normal. You could choose, for example 80% of the people. In doing that, you have decided that 80% of the people are within the normal range of heights. So about 10% of people will be shorter than that, and 10% taller than that.