Typical dimensions for a childâs picnic table are 33 inches long by 38 inches wide and 22 inches high. Stockbyte/Stockbyte/Getty Images. A newer design is the octagonal or round table with attached seating for up to eight.
External and internal forces can cause dysrhythmia. External factors include exhaustion, overexertion, emotional stress (such as Annie's campaign speech), cigarette smoking, drinking alcohol, and ingesting stimulants such as caffeine, decongestants, and cocaine.
If certain substances in the blood are unbalanced, it could cause arrhythmia. The most common reasons are due to an imbalance (usually deficiency) of: 1  Calcium-a lack of calcium may cause abnormal heart rhythm. 2  Calcium is needed to regulate heart beat to normal levels.ertain prescription medications can also cause arrhythmia as a side effect. The most common medications to cause this type of side effect are: 1  Allergy and sinus medications that contain pseudoephedrine. 2  Appetite suppressants. 3  Beta-blockers. 4  Psychotropics (anti-depressants). 5  Thyroid medications.