Can Oral Swabstick be used for Bacterial Contamination Sampling of Equipment?

Bacteria are widespread in the environment, and medical equipment is no exception. In order to reduce nosocomial infections, it is necessary to monitor the pollution of instruments and equipment, as well as the effectiveness of disinfection and sterilization equipment. Correct sampling is an important part to ensure that the monitoring results are correct. In clinical routine testing, Oral Swabstick is used to wipe the patient's mouth. Oral swab sampling is convenient and less error-prone. We use throat swabs for instrument monitoring and sampling.

material:

Oral swabs are sterile products, sterilized by irradiation, and have a shelf life of 2 years. Appearance is a small plastic rod of about 10 cm with a nylon flocking fiber swab on one end. It is mainly used for the collection of pharyngeal samples from clinical patients, and also for the collection and detection of skin exudates, wounds, and epidermal specimens.

Flocked Swab

method:

(1) Sampling method

The dry method is used directly for rubbing the throat swab, and the wet method is used for rubbing after the swab is wet in the broth tube. After sampling, the swab was fully eluted in the broth, and the broth tube was placed in a 37-hour culture for 24 hours. Blood transfusion dishes were cultured for 37 hours and cultured for 24 hours. Take a single colony micromelt, oxidase, and coagulase experiments, the same

Gram staining was used to distinguish between Gram-positive bacteria (G) and Gram-negative bacteria (G).

(2) Bacterial identification

Take a single colony with a sterile cotton swab and put it in 1.8ml. In 45% NaCI sterile saline, it was made into a bacterial suspension and prepared at a concentration of No. 1 McGregor unit or 0. 5 Microbial unit bacterial suspension was inoculated with GN I card or GPI card. All cards after inoculation were analyzed in the ANS system.

Oral swabs can be used for sampling or oral swabs can be used for sampling of equipment and equipment for bacterial contamination monitoring. This method is simple and reliable, but it is only suitable for qualitative analysis and cannot meet the requirements of quantitative detection. In use, many of them are qualitatively monitored, indicating that they can be sterile or judged to be bacterial.

The swabs used before are basically made of cotton. Many people don' t know much about this flocking swab, so we will give you the basic characteristics of Flocked Swab.

A. Because of its extraordinary water absorption capacity, the number of specimens it collects has been increased from 20% to 60% of traditional sampling swabs, thereby greatly improving efficiency

B. The release rate of the collected specimens exceeds 90%, which can ensure the high reliability of the results

C. Different preservation solutions were selected for different specimen types, sterilized by ethylene oxide,

D. The unique breakable design on the plastic rod makes it easy to shorten the collection carrier, easy to save, and convenient for specimen transport

E. Individual packaging

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