Results. Creatinine and creatinine clearance tests measure creatinine levels in your blood and urine. These tests give information about how well your kidneys are working. The creatinine clearance value is found from the amounts of creatinine in the urine and blood and from the amount of urine you pass in 24 hours.
This can control or prevent episodes of rapid heartbeat. ... The ventricles also beat rapidly, but not as rapidly as the atria, as not all the ... Reducing stress, as intense stress and anger can cause heart rhythm problems; Using over-the ... with caution, as some cold and cough medications contain stimulants that may trigger a rapid heartbeat. ... Atrial flutter is a type of abnormal fast beating ( arrhythmia ) in the atria. ...
When your heartbeat speeds up for no apparent reason, however, that may be a sign of an abnormally rapid heartbeat â a condition called tachycardia (tachy means fast; cardia refers to the heart). Tachycardia can cause the heart to beat faster than 100 beats per minute, in some cases racing up to 400 beats per minute.Most Dangerous Rapid Heart Rhythms. Sudden rapid heartbeats originating in the ventricles are the most dangerous arrhythmias.ate If the heart rate is rapid, or greater than 100 beats a minute, it is considered a tachycardia. Alternatively, a slow heart rate, below 60 beats a minute, is known as a bradycardia.