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Random articles

Hepatitis A

ÝíÑæÓ A ÇáÊåÇÈ ÇáßÈÏ ÇáæÈÇÆì


ÝíÑæÓ A ÇáÊåÇÈ ÇáßÈÏ ÇáæÈÇÆì
íÊã ÇÌÑÇÁ åÐÇ ÇáÇÎÊÈÇÑ ÅÐÇ ÚöäúÏóßó ÃÚÑÇÖõ ÚÏæì ãóÚ æ/ Ãóæ ÚõÑøÖÇ Åáì ÝíÑæÓö ÅáÊåÇÈ ÇáßÈÏ HAVº ÅÐÇ ÚöäúÏóßó ãÑÖõ ßÈÏö ãõÒãäöº Ãóæ ÅÐÇ ÅÓÊáãÊó áöÞÇÍó HAV

åäÇß ÅËäÇä ãöäú äÓÎö ÇáÅÎÊÈÇÑö¡ æåÐå íóßÊÔÝõ ÇáÃÌÓÇã ÇáãÖÇÏÉ Antibodies ó. ÇáÃÌÓÇã ÇáãÖÇÏÉ ÊõäÊÌõ ÈÇáÌÓãö áÍöãÇíÉ äÝÓåÇ ãöäú Antigens ÇáãõÓúÊóÖøÏÇÊö (ÈÑæÊíä ÃÌäÈí). IgM immunoglobulin Åã ÇáÌÓã ÇáãÖÇÏõ ÇáÃæáõ ÃäÊÌó ÈÇáÌÓãö ãÊì åæ íõÚÑøÖõ Åáì ÝíÑæÓ A æãÓÊÚãáõ áá...Read more

Antibiotic Susceptibility Test

ÒÑÇÚÉ ÇÎÊÈÇÑ ÞæÉ ÇáãÖÇÏÇÊ ÇáÍíæÉ

This test for testing number of antibiotics against certain organism to find the best one and the most effective on this organism.

Steps:
-Take a swap from the colony by a sterile wire loop and culture it on Muller-hinton agar.
-Leave it incubated for 24 hours at 37ºC.

Result:
You notice now the larger clear zone around an antibiotic means that this antibiotic is the best.
See Samples below......Read more

Gram stain procedure

ØÑíÞÉ ÕÈÛÉ ÌÑÇã (ÕÈÛÉ ÛÑÇã)

This stain for differentiate between G +ve bacteria (which accept staining) and G -ve bacteria (which not accept staining).

Steps:
-Prepare your clear slide and put one drop of normal saline.
-Take specimen from the colony and mix it well with normal saline.
-Leave for dryness on air then fix it on burner.
-Then pour Crystal Violet stain on the slide and leave it for 1 minute.
-Wash gently with water.
-Then pour Iodine stain on the slide and leave it for 1 minute.
-Wash gently w...Read more