Czech Republic Time is in the Central European Time Zone . Central European Standard Time ( CET ) is 1 hours ahead of Greenwich Mean Time ( GMT+1 ). Like most states in Europe, Summer (Daylight-Saving) Time is observed in Czech Republic Time, where the time is shifted forward by 1 hour; 2 hours ahead of Greenwich Mean Time ( GMT+2 ). After the Summer months the time in Czech Republic Time is shifted back by 1 hour to Central European Time (CET) or ( GMT+1 )
What Is a Doppler Ultrasound? A Doppler ultrasound is a test that uses high frequency sound waves (ultrasound) to measure the amount of blood flow through your arteries and veins, usually those that supply blood to your arms and legs. Vascular flow studies, also known as blood flow studies, can detect abnormal flow within an artery or blood vessel.
A Doppler test uses ultrasonic waves to assess the movement of blood through the blood vessels. It is used as a preventative measure for conditions such as stroke. The Doppler test usually used on the major veins and arteries of the legs, arms and neck. It is also used to locate blood clots that, if they break loose, can be fatal. During a Doppler test, a device is held over the skin. This device sends and picks up sound waves. The movement of the blood causes changes in pitch.