American Society for Clinical Pathology (ASCP) Technologist in Cytogenetics certification (ASCP CG) Practice Test

Which term best describes the technique used to keep cultures free from contamination?

1. Isolation technique

2. Aseptic technique

3. Antiseptic method

4. Contamination prevention procedure

The correct answer is: Aseptic technique

The term that best describes the technique used to keep cultures free from contamination is "aseptic technique." Aseptic technique refers to a set of practices and procedures performed under controlled conditions to minimize contamination by pathogens, especially when working with cell cultures, microbiological specimens, or during surgical procedures. This technique is critical in laboratory settings to ensure the integrity of the samples and prevent unwanted microbial growth that could compromise results or patient safety. By employing aseptic techniques, laboratory personnel use various methods such as sterilization of tools, disinfecting surfaces, and using protective equipment like gloves and masks to create a barrier against contaminants. This process is fundamental in cytogenetics and other fields where the purity of cultures directly affects the validity of experimental results.