bakteriologi infeksi kulit & jaringan lunak (s1 fk unair)
TRANSCRIPT
BAKTERIOLOGI INFEKSI KULIT & JARINGAN LUNAK
DICKY BAGUS WIDHYATMOKO
18 – 19 MARET 2015DEPARTEMEN MIKROBIOLOGI KLINIK, FAKULTAS KEDOKTERANUNIVERSITAS AIRLANGGA
POKOK BAHASAN
Staphylococcus spp
Mycobacterium leprae
DISEDIAKAN
Staphylococcus :
S. aureus
S. epidermidis
S. saphrophyticus
Mycobacterium leprae :
slide only
Uji Katalase
Uji Koagulase
Mannitol Salt Agar (MSA)
Novobiocin test
MRSA Identification
Identifikasi Staphylococcus
Uji Katalase
Uji Koagulase
Mannitol Salt Agar (MSA)
Novobiocin test
Staphylococcus spp
Use of Catalase Test
The catalase test is primarily used todistinguish among Gram-positive cocci
Staphylococcus are catalase-positive,
members of the genera Streptococcus andEnterococcus are catalase-negative.
Catalase Test
Metode :
slide (drop) method
tube method
tube (slant) method
Catalase2H2O2 O2 + 2H2O
Streptococci vs. Staphylococci
Catalase Test
Catalase POS
Staphylococcus
Catalase NEG
Catalase Test
Catalase Test (tube method)
Catalase Test (tube (slant) method)
Coagulase Test
differentiates strains of Staphylococcus aureusfrom S. epidermidis and other coagulase-negative species
S. aureus strains are usually capable ofcoagulating EDTA-treated plasma in the tubetest and will produce clumps of cells in theslide test.
Coagulase Test
method :
Slide Test
Tube Test
Coagulase Test (Slide Test)
S. aureus
Coagulase
Fibrinogen Fibrin
Differential Characteristics
Coagulase NEG
Coagulase POS
Staphylococcus aureus
Mannitol Salt Agar
Contains :
Mannitol
Phenol Red as a pH indicator (pH = 7.8)
Reaction
Mannitol Fermented acid produced
pH < 6.9 : yellow color
pH > 8.4 : red color
various spesies on Tripticase Soy Agar (TSA)
A. S. aureus B. S. epidermidis C. E. coli
various spesies on Tripticase Soy Agar (TSA)
A. S. aureus B. S. epidermidis C. E. coli
Novobiocin Test
Differentiate between S. epidermidis w/ S. saprophyticus
Using Novobiocin disc ( 5 g)
< 15 mm = Resisten S. saprophyticus
Identifikasi MRSA
MRSA : Methicillin-Resistant Staphylococcus aureus
Methicillin Oxacillin Cefoxitin
CLSI M100
Using Cefoxitin disc :
21 mm : MRSA
> 21 mm : non - MRSA
Suspect MRSA
Collect Sample from wound
Collect Sample from nose
Mycobacterium Leprae
Sample : Skin scrap using scalpel
Using Slide with Ziehl-Neelsen Stain method
Presence of globi (singular = globus):encapsulated amphophilic masses of non-viable bacilli found within macrophages or inextracellular space
Result : (Bacterial Index)
1+ At least 1 bacillus in every 100 fields.
2+ At least 1 bacillus in every 10 fields.
3+ At least 1 bacillus in every field.
4+ At least 10 bacilli in every field.
5+ At least 100 bacilli in every field.
6+ At least 1000 bacilli in every field.
On Hand
Pengamatan & Pelaporan Preparat Demo
Uji Katalase
Kultur Media dari spesimen langsung (amies swab) dengan :
Blood Agar Plate
McConkey Agar