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MICROBIOLOGIC DX. 3 FORMS : ANTIGENS ANTIBODIES SUGESTIVES TESTS.

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Presentation on theme: "MICROBIOLOGIC DX. 3 FORMS : ANTIGENS ANTIBODIES SUGESTIVES TESTS."— Presentation transcript:

1 MICROBIOLOGIC DX. 3 FORMS : ANTIGENS ANTIBODIES SUGESTIVES TESTS

2 ANTIGENS MICROSCOPIC OBSERVATION salin solution a) wet prep dark field indian ink

3 Ags. gram stain acid fast stain b) fix prep giemsa hematoxilin argentic stain

4 Ags.: Bacterian identification. A) cultures: B.A., EMB, SS, LOWENSTEIN B) tissues cultures C) animal inoculations

5 ags Molecular studies: DNA, probes, Pcr, western-blot, chemioluminiscency

6 antibodies A) specific tests B) inespecific tests

7 ANTIBODIES Meanings: has, had, o cross reaction. fever reaction: Widal, Hudlesson and Weil-Felix ASLO: ANTISTREPTOLISINS VDRL: VENERAL DISEASE REACTION LABORARATORY

8 ABS IG M: TOXOPLASMOSIS (SABIN – FELDMAN) IN NEW BORNE = INFECTION IG G: TOXOPLASMOSIS IS MOTHER’S IG G

9 INESPECIFIC EXAMPLES WEIL-FELIX VDRL EB TEST

10 RUTIN TESTS GENERAL TESTS C.B.C. RED CELLS W.B.C. INCREASE: ACUTE Number bacterial INFECTION NORMAL O DECREASE: chronic INFECTION Platelets: decrease gram negative infection.

11 WBC DIFERENTIAL COUNT NEUTROPHILS INCREASE: ACUTE INFECTION LYNPHOCYTES INCREASE: CHRONIC o VIRAL INFECTION

12 OTHERS LIKE: CSF o UA. Pleocytosis (leucocytosis spinal fluid) = infection. PMN = ACUTE INF. MN = CHRONIC or VIRAL INF. Leucocyturia = UTI

13 Clinical case NURSE 30 YEARS OLD. SUPERVISOR ( NIGHT ) “ RAMON GARIBAY “ HOSPITAL, FEVER ( 39 ) HEADACHE DURING 2 WEEKS. Fever reaction (+ )‏ 1:640 (WEIL-FELIX). TX. AMPICILIN

14 Normal flora 1.- Why flora = most of microorganisms are bacterías How many cells are in the body?:10 14 bacterias : 10

15 flora Skin, nose,mouth intestinal, urogenital


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