Sinus tachycardia. This happens when your heartâs natural pacemaker sends out electrical signals faster than normal. Your ticker beats fast, but it beats the way it should. What Causes It? Any number of things. Strenuous exercise, a fever, fear, stress, anxiety, certain medications, and street drugs can lead to sinus tachycardia. It can also be triggered by anemia, an overactive thyroid, or damage from a heart attack or heart failure.
carpal tunnel syndrome. a common disorder of the wrist and hand characterized by pain, tingling, and muscular weakness, caused by pressure on the median nerve in the wrist area and often associated with trauma, rheumatoid arthritis, or edema of pregnancy.
The wrist contains eight bones, roughly aligned in two rows, known as the carpal bones.. Moore 2006, p. 485. The wrist (carpus), the proximal segment of the hand, is a complex of eight carpal bones. The carpus articulates proximally with the forearm at the wrist joint and distally with the five metacarpals.