The patient must have nothing by mouth (NPO) 6 hours prior to the exam. The Radiologist will write the pre-operative orders. Pre-labs of CBC, PT, (PTT) may be ordered. The patient should continue all oral meds especially anti-hypertensive medications.
A chronograph is a specific type of watch that is used as a stopwatch combined with a display watch. A basic chronograph has an independent sweep second hand; it can be started, stopped, and returned to zero by successive pressure on the stem. Less simple chronographs use additional complications and can have multiple independent hands to measure seconds, minutes, hours and even tenths of a second.
Asker's rating. 1  The definition of a chronograph watch is one that records time. More specifically they are watches that both tell time and can also be used as a stopwatch. 2  No, hon. It means it has a timer or also called a stopwatch. 3  Many watches are chronographs. That means they have a stopwatch function. Some people buy them because they like the look but are not sure of how to use them. 1. a timepiece fitted with a recording device, as a stylus and rotating drum, used to mark the exact instant of an occurrence, esp. in astronomy.