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Collection and Transportation of Clinical Specimens - Coggle Diagram
Collection and Transportation of Clinical Specimens
Collection & transportation of specimens
Laboratory responsibilities
Provide
collection information
to healthcare personnel
1)When 2) Where 3) What 4) How
Usage of appropriate containers & collection supplies
Check samples carefully upon arrival
Packaging requirements
Primary container
A tube/vial containing the sample
Secondary container
Watertight polyethylene box to protect primary container
Outer container
Strengthened cardboard box to protect secondary container. Reusable.
Types of specimens collected
Urine
Mid-stream samples
Catheter stream urine specimen
Swab
Wound swabs
Nasal swabs
Throat swabs
Eye swabs
Ear swabs
Blood
Blood cultures for: 1) antibiotic levels 2) bacterial and viral serology 3) molecular investigations
Cerebrospinal fluid
Sterile body fluids
Joint fluid
Pleural fluid
Skin, hair and nails
Tissue
Nasopharyngeal aspirates
Faeces (rectal swabs)
Perianal swabs for diagnosis of theadworm infection
Vaginal swabs
Cervical swabs for diagnosis of
Neisseria gonorrhea & Chlamydia
Penile( Urethral swabs)
Rejection criteria
Missing/ inadequate identification of sample
Insufficient quantity
Specimen collected in an inappropriate container
COntamination suspected
Inappropriate transport/ storage
Types of transport media
Cary & Blair medium - semi solid/ white coloured/ isolation
Salmonella ,Shigella, Vibrio, Campylobacter
Amies medium with charcoal- isolation of fastidious organisms & Camphylobacter
Amies medium without charcoal- isolation Mycoplasma & Ureoplasma
Venkatraman Ramakrishnan (VR) medium- for faeces transport for cholera patient
Sach's buffered glycerol saline- faeces transport of patients with bacillary dysentery
Viral transport medium- diagnosis of viral infections
Anerobic transport medium - mineral salth base semi-solid media with reducing agents