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.
Types of Heart Arrhythmias. Arrhythmia refers to any kind of abnormal heart rhythm. There are two types of arrhythmias: atrial arrhythmia, also called supraventricular arrhythmia, which begins in the upper chambers of the heart, and ventricular arrhythmia, which begins in the lower chambers of the heart