Anesthesia Technologist Practice Exam

What should be done when preparing an ultrasound probe for use in a sterile field?

1. Ensure the probe is dry

2. Use a sterile sheath and apply ultrasound gel before insertion

3. Sterilize the probe with alcohol

4. Use disposable ultrasound probes only

The correct answer is: Use a sterile sheath and apply ultrasound gel before insertion

Using a sterile sheath and applying ultrasound gel before insertion is the appropriate step when preparing an ultrasound probe for use in a sterile field. This practice is crucial because it maintains the sterility of the ultrasound probe and protects the sterile field from potential contamination during procedures. The sterile sheath acts as a barrier, preventing any microorganisms on the probe from entering the sterile area. Additionally, applying ultrasound gel properly ensures optimal transmission of sound waves and enhances the quality of the ultrasound images, while also maintaining sterility. Other options might not adequately ensure sterility or could compromise the integrity of the procedure. Using alcohol can clean the surface of the probe but does not achieve complete sterilization, and using disposable probes may not always be feasible or available in all settings. Ensuring the probe is dry won't guarantee that sterility is maintained during use in a sterile field.