Ultrasounds are very accurate when it comes to a heartbeat. 99.9 percent
http://wiki.answers.com/Q/How_accurate_are_ultra-sounds...
Well baby starts it's heartbeat very early..just a few weeks after conception. I first heard mine at about 10 weeks.
http://answers.yahoo.com/question/index?qid=20070228082...
There are certain vitamin deficiencies that cause heart irregularities and it is one way to determine some of these issues by looking at ECG's. A typical one is vitamin B-1 (thiamine) deficiency. Antibiotics can and do deplete the body of i...
http://answers.yahoo.com/question/index?qid=20081228105...
It might be possible to extrapolate by studying comparative electrocardiograms. But one problem is that we that don't know how many chambers a dinosaur heart would have had. And we may never know. I have a fossilised heart from a bird. It's...
http://www.newscientist.com/article/mg16422135.100-king...
When you listen to your heartbeat through a stethoscope ("lubb-dubb lubb-dubb"), you hear the sound of your heart valves closing. Although your heart has four valves, the valves open and close two at a time. That's why you hear on...
http://www.bostonscientific.com/templatedata/imports/HT...
The "lubb" sound is produced when the atrioventricular valves in the heart close. These valves are deep inside the heart and are between the upper (atrial) and lower (ventricular) chambers. The "dupp" sound is created wh...
http://wiki.answers.com/Q/Causes+the+sounds+of+the+hear...
Your baby’s heartbeat is much faster than your own. Sometimes it sounds like the fast ‘clippety-clop’ of a galloping horse. You can distinguish your heartbeat from your baby’s based on the heart rate, yours being the slower one.
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