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34 Cards in this Set

  • Front
  • Back

In w' media Staph will produce yellow colonies

Mannitol salt agar


Slective indicator media

What is the most important vilrulance factor of staph.aureus?


Staphylocoagulase

W' types of food is more susceptible to staph food posing?

Ptn rich food


Charbohydrate rich food

Incubation period of staph

1to 6 hours

Does staph food posining produce fever and why

No, as there is no infection or inflammation


ال organism ما دخل الجسم فقط ال toxins

What type of toxin is produced in SSSS

Exfoliatin produced by staph.aureus

Why staph.aureus can resist methacillin (MRSA)

Due to presence of mec-A gene on chromosome of MERSA

The new antibiotic of VRSA

Linezolid and streptogramins

Sensitive to novobiocin

Staph epidermidis

Produces honeymoon cystitis

Staph. saprophiticus

Sensitivity of staph.saprophyticus to novobiocin

Staph.saprophyticus resist novobiocin

Ttt of staph.saprophyticus

Quinolones

Ragarding to morphology and caltural characteristics, in what staph.epedermides differ from staph.aureus

1-mannitol non fermenter


2-non hemolytic colonies on blood agar

Inhibitid by bacitracin

Strept.pyogenes (group a strept)

Necrotising fascilitis

Strapt. Pyogenes producing B toxin act as protease

Scarlet fever

Strept. Pyogenes producing toxin A w' is erythrogenic

Lipoteichic acid

Factor mediate adherance in strept pyogenes

Erysipelas

Form of cellulitis accombined by fever and systemic to toxicity


Caused by strept pyogenes

SPE - A B C

Produced by strept. Pyogenes


Casue Toxic shock syndrome


Tessue necrosis


Renal falure


DAD

Diagnosed by jones criteria

Acute rhomatic fever

Subcutaneous nodules

One of the major criteria of ARF

Smoky urine

Means RBCs in urine w' caused by acute glumerulonephritis

ASO is low in AGN patient

لان ال AGN غالبا بتيجي من strept skin infection


و ال O streptolysin بكون o2 lable فبتكسر بال skin

Elevated anti-DNase B denotes

Acute glomerulonephrites caused by strept skin infection or pharyngitis

Prevention of strept agalactia

Ampicillin during delivery

Combination of penicilin and gentamicin

Ttt of strept. Veridens in cases of endocarditis

Used in patient with abnormal heart valves prior to dental pressures or oral surgery for prevention of endocarditis

Ambicillin or amoxicillin

Gram +ve lancet shape capsulated diplococci

Strept. Pneumonae

Quellung test

Used to identify pnumocci


By swelling of its capsul in response to specific antibody

Growth inhibted by optochin

S. Pneumonae

Characterized by rusty sputum

S. Pneumonae

Drug of choice in ttt of s. Pneumonae infection

Cephalosporin

Mention one example of ptn conjugate vaccine

23 pnumoccal serotype

كيف تحلف انها strept

1-growth inhibited by bacitracin


2-agglutination by group A antibody