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Samples
• Sample is derivative of example
and sample is generally apart of
something that can be taken to
represent the whole
Type of specimen in the microbiology lab
1. Open sample
2. Close sample
Open sample
• 1.open sample :it is the sample collected
for area contain normal flora
Example
• Stool :collected for diarrhea and abdominal
disease
• Sputum: for lower respiratory tract infection
• Throat swab :for throat infection
• Skin swab: for skin infection
• Wound exudates : for wound infection
2.Close sample
Close sample it sample collected from area the
note contain normal flora
Example
Urine : collected for urinary tract infection
Synovial fluids : for joint infection
Ascetic fluid: liver infection
Cerebrospinal fluid: for meningitis infection
Blood: for fever of non origin or heart
infection
Pleural fluid : for pleural infection
Specimen collection:
Collection according to:
1.differential diagnoses
2.test(s) to be conducted
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