Which situation would NOT typically require the use of aseptic techniques?

The situation that would not typically require the use of aseptic techniques is performing a routine physical examination. During a routine physical examination, the primary focus is on assessment and evaluation rather than invasive procedures where strict aseptic techniques are mandatory. This type of examination often involves non-invasive procedures like palpation or auscultation, which do not necessitate the same stringent measures to maintain sterility as surgical procedures do.

In contrast, inserting a catheter, conducting open-heart surgery, and preparing surgical instruments all demand a high standard of aseptic technique to prevent infection and maintain a sterile field. These activities involve direct contact with sterile body areas or instruments, where the risk of introducing pathogens is significant, thus necessitating adherence to aseptic protocols.