A small number of RBCs are normally present in urine and usually result in a negative chemical test. An increased amount of hemoglobin and/or increased number of RBCs are detected as a positive chemical test result.
gigahertz. n, pl-hertz. 1. (Units) a unit of frequency equal to 10 9 hertz. Symbol: GHz.
GHz is most commonly used in computer lingo when discussing a processor's speed. Hz (Hertz) literally means one wave or cycle per second. So 1 GHz (Giga-Hert) is 1 Billion cycles per second. It's a measure of the clock speed of the processor.