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Random articles

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

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

Types of White Blood Cells (WBC's)

ÇäæÇÚ ßÑÇÊ ÇáÏã ÇáÈíÖÇÁ


ÇäæÇÚ ßÑÇÊ ÇáÏã ÇáÈíÖÇÁ

ÇæáÇ ÇáÎáÇíÇ ÇáãÍÈÈÉ:

1.ÇáÈÇÒæÝíá Basophil

-äÓÈÊåÇ ãä ÕÝÑ-1 %.
-ÇáÓíÊæÈáÇÒã ÚÈÇÑÉ Úä ÍÈíÈÇÊ áæäåÇ (ÇÒÑÞ ÏÇßä)
-ÇáäæÇÉ Êßæä ãæÌæÏÉ æáßä ÛíÑ æÇÖÍÉ ÍíË Çä ÇáÓíÊæÈáÇÒã íÛØíåÇ.
-ÞáæíÉ ÇáÕÈÛÉ.

2.ÇíÒíäæÝíá Eosinophil

-ÇáäæÇÉ ÊÔÈå ÇáäÙÇÑÉ ÇÍíÇäÇ.
-ÍãÖíÉ ÇáÕÈÛÉ.
-áæäåÇ ÇÍãÑ.

3.ÓÊÇÝ Staff

-äÓÈÊåÇ ãä 1-3 %.
-ÇáÓíÊæÈáÇÒã Èå ÍÈíÈÇÊ ÏÞíÞÉ ÈäÝÓÌíÉ Çááæä.
-ÇáäæÇÉ ÚÈÇÑÉ Úä ÔÑíØ åáÇáì ÇáÔßá Çæ Úáì ...Read more