Why is blood handled aseptically when adding to the blood agar base?

Blood is handled aseptically when adding to the blood agar base to prevent contamination from unwanted microorganisms that could interfere with the growth and identification of specific pathogens. Aseptic techniques ensure that the sample remains pure, allowing for accurate results in microbial analysis. Additionally, maintaining sterility protects the integrity of the culture and supports the growth of the intended bacteria in a controlled environment.