This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General Microbiology Pa-2 and Pa-3 (Sterilization and Bacterial Genetics), Subject name: Microbiology
According spaulding classification system of sterilization, following is true except - 
Select and explain. 
A. "Non-critical devices" come into contact with intact skin, B. Semicritical equipment need low-level sterilization, C. "Semi-critical devices" come into contact with non-sterile mucous membranes or non-intact skin, D. Cardiac catheter is critical equipment
B: Semicritical equipment need low-level sterilization
Answer: B: Semicritical equipment need low-level sterilization 
Explanation: Clinical device Definition Example Infectious risk Critical device Medical device intended to enter a normal sterile environment, tissue or vasculature Surgical Instruments, cardiac and urinary catheters, Implants, eye & dental instruments, High (to be sterilized) Semi-critical device Medical device intended to come in contact with mucous membranes or minor skin breaches Respiratory therapy & anaesthesia equipments, endoscopes, laryngoscope, tonometers, rectal/vaginal /esophageal probes etc. High, Intermediate (sterlized / HLD) Non- critical devices Medical devices that comes in contact with intact skin BP cuff, ECG electrodes, bedpans, crutches. Stethoscope, thermometer Low (ILD/LLD) Medical equipments Device or component of a device that does not typically come in direct contact with patient Examination table, computers Low (LLD)