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Basic Laboratory Procedures in Clinical Bacteriology
(WHO; 1991; 128 pages)
Preface
Introduction
Quality assurance in microbiology
Introduction
Definitions
Internal quality control
External quality assessment
Part I. Bacteriological investigations
Blood
Introduction
Causes of bacteraemia
Blood collection
Blood-culture media
Processing of blood cultures
Cerebrospinal fluid
Introduction
Collection and transportation of specimens
Macroscopic inspection
Microscopic examination
Preliminary identification
Susceptibility testing
Urine
Introduction
Specimen collection
Culture and interpretation
Interpretation of quantitative urine culture results
Identification
Susceptibility tests
Stool
Introduction
Collection of faecal specimens
Collection of rectal swabs
Examination of specimens
Preparation of faecal suspension
Inoculation of agar plates
Lower respiratory tract infections
Introduction
The most common infections
Collection of sputum specimens
Processing of sputum in the laboratory (for non-tuberculous infections)
Culture for Mycobacterium tuberculosis
General note on safety
Upper respiratory tract infections
Introduction
The normal flora of the pharynx
Bacterial agents of pharyngitis
Collection and dispatch of specimens
Direct microscopy
Culture and identification
Susceptibility testing
Sexually transmitted diseases
Introduction
Urethritis in men
Genital specimens from women
Specimens from genital ulcers
Purulent exudates, wounds, and abscesses
Introduction
Commonly encountered clinical conditions and the most frequent etiological agents
Collection and transportation of specimens
Macroscopic evaluation
Microscopic examination
Culture
Identification
Susceptibility testing
Anaerobic bacteriology
Introduction
Description of bacteria in relation to oxygen requirement
Bacteriology
Antimicrobial susceptibility testing
Introduction
General principles of antimicrobial susceptibility testing
Clinical definition of terms “resistant” and “susceptible”: the three-category system
Indications for routine susceptibility tests
Choice of drugs for routine susceptibility tests in the clinical laboratory
The modified Kirby-Bauer method
Direct versus indirect susceptibility tests
Technical factors influencing the size of the zone in the disc diffusion method
Quality control
Part II. Essential media and reagents for isolation and identification of clinical pathogens
Introduction
Priority grading of pathogens, culture media, and diagnostic reagents
Blood culture
Cerebrospinal fluid specimens
Urine
Stool culture
Lower respiratory tract
Upper respiratory tract
Urogenital specimens for agents of sexually transmitted diseases
Pus and exudates
List of recommended culture media and diagnostic reagents for the intermediate microbiological laboratory
Selected further reading
Selected WHO publications of related interest
Back Cover
Blood
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