G. lamblia reproduces by dividing itself in two (a process called binary fission), and when their numbers are high enough they can interfere with the host's ability to absorb nutrients during digestion. (advocatesaz.org)
This colorized scanning electron micrograph shows Giardia lamblia reproducing asexually. (advocatesaz.org)
This stool analysis determines the presence of ova and parasites such as protozoa, flatworms, and roundworms; Cryptosporidium parvum, Entamoeba histolytica, and Giardia lamblia antigens; bacteria, fungi (including yeasts), and occult blood; and Clostridium difficile colitis toxins A and B. Sensitivity to pathogenic organisms will be reported as necessary. (mikedaciuk.com)