Which of the following is a cath lab requirement?

• A. Max humidity of 60%
• B. Temp 70-75 F/20-24 C
• C. 15 air exchanges/hr
• D. Min floor space of 400 sq ft

Answer: (D)

A catheterization lab must have enough space to safely accommodate all the equipment, sterile setup, and the staff moving around the patient. The minimum floor space of 400 square feet ensures there is room for the patient bed, imaging equipment (like the C-arm), monitors, anesthesia gear, and supply carts, while also providing clear pathways for sterile handling and emergency access. This footprint supports proper workflow, reduces crowding, and helps maintain infection control by allowing thorough cleaning and minimizing contamination risk. While maintaining appropriate humidity, temperature, and air exchanges are important environmental controls in any sterile procedure room, the floor space requirement specifically guarantees the physical area needed to perform and support the procedure safely.