Define aseptic techniques. What are the various sources of contamination?

Define aseptic techniques. What are the various sources of contamination?
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Answer :

Definition: Aseptic technique

 The method which is used to prevent the access of microorganism during the preparation of parenteral product and their testing are called “Aseptic Technique”

Sources of contamination:

1. Atmosphere, which is contaminated with dust, droplet and droplet nuclei becomes the breeding ground of microorganism.

2. The hair

3. Unsterile equipment.

4. Working surface.

5. The hands are a major means of transmitting infection.

6. Coughing, sneezing and spitting can cause contamination considerable distance.

7. The clothes which absorb dust particles are also a source of contamination. A handkerchief is the richest source of contamination. 
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