The link(s) below go to OES data maps for employment and wages by state and area. 1  Brickmasons and blockmasons. 2  Cement masons and concrete finishers. 3  Segmental pavers. 4  Stonemasons. 5  Terrazzo workers and finishers.
Sinus arrhythmia refers to the normal increase in heart rate that occurs during inspiration (when you breathe in). This is a normal response and is more accentuated in children than adults. Sinus tachycardia refers to a fast heartbeat (tachycardia) because of rapid firing of the sinoatrial (sinus) node.
Normal sinus rhythm and sinus arrhythmia. 1  Spodick DH. Normal sinus heart rate: sinus tachycardia and sinus bradycardia redefined. Am Heart J 1992; 124:1119. 2  Spodick DH, Raju P, Bishop RL, Rifkin RD. Operational definition of normal sinus heart rate. Am J Cardiol 1992; 69:1245. 3  Mason JW, Ramseth DJ, Chanter DO, et al.