Located in southeastern New Mexico, Carlsbad Caverns lie beneath the Earth's surface and were formed when limestone was dissolved by sulfuric acid during the last ice age.
There are three types of rate control medications: Beta Blockers, which slow the heart rate and relax the blood vessels. Examples include Atenolol (TenorminÂ®), Carvedilol (Coregâ¢), Metoprolol (Toprol XLâ¢, LopressorÂ®), and Sotalol (BetapaceÂ®)
1 An EKG can determine if the heart is beating too fast or too slow. 2  Heart rhythm abnormalities. 3  A heart typically beats in a steady rhythm. 4  An EKG can reveal if the heart is beating out of rhythm or sequence.5  Medication side effects. An EKG can determine if the heart is beating too fast or too slow. 2  Heart rhythm abnormalities. 3  A heart typically beats in a steady rhythm. 4  An EKG can reveal if the heart is beating out of rhythm or sequence. 5  Medication side effects.