1 Size-Tornadoes can vary widely in size. 2  A typical tornado in the United States is around 500 feet across, but some may be as narrow as just a few feet across or as large as a mile wide. 3  Wind Speed-The wind speed of a tornado can vary from 65 to 250 miles per hour.
It is always used in conjunction with a means to determine at what pressure blood flow is just starting, and at what pressure it is unimpeded. Manual sphygmomanometers are used in conjunction with a stethoscope. The word comes from the Greek ÏÏÏÎ³Î¼ÏÏ (sphygmos, pulse), plus the scientific term manometer (pressure meter).
Either validated electronic devices or aneroid sphygmomanometers that are proven to be accurate, according to standard testing, are recommended for use along with appropriate-sized cuffs. Selected Guidelines (*).