it means for it to out some people
It means that the blood vessels and blood flow are normal. The part about 'within normal limits' means that there is a range. An example is that the normal range for blood glucose (sugar) is from 70-110. If you have a number somewhere in that range, your blood sugar level is fine.
no
No.
The normal heart rate depends on a lot of things. Age, sex, activity, size and species.
Dilated pupils are large. Constricted pupils are small.
25
normal ones
worse than normal but as you say mildly dilated. keep up with yearly or every 2 year echocardiograms (with the gel and wand on your chest) to keep up with it... to see if it turns into moderately dilated aorta... then if it gets to severely dilated your Dr. may recommend a surgical intervention
75% to 125%
pulmonary ventilation
NL is often used to indicate "normal limits" or "normal.""Nl" stands for "normal". You'll often see it written as WNL which means "within normal limits".
70