Final answer:
Medical gas systems must have a purple background with uppercase yellow lettering to comply with identification and labeling standards in healthcare facilities.
Correct option is C. Medical gas
Step-by-step explanation:
It seems like you've provided information about the identification and labeling standards for medical gas systems in healthcare facilities. The use of a purple background with uppercase yellow lettering is indeed a standard color-coding system to identify medical gas systems. This ensures rapid and accurate recognition by medical personnel, promoting safety and preventing potential confusion or misuse, especially in emergency situations.
This standardized approach is essential for maintaining a secure environment in healthcare facilities, where precision and quick identification of critical systems can be a matter of utmost importance for patient safety and overall operational efficiency.