Every eight hours often does the external electronic simulator need to be used. Thus, the correct option is A.
<h3>What is blood gas?</h3>
The amount of oxygen and carbon dioxide in your blood are measured by blood gases. Your blood's pH is also calculated by them.
Every eight hours when the instrument is in use, each patient is checked before usage. There is a specific Electronic Simulator Quality Control equipment for each i-STAT1 analyzer.
