Бак посев из носоглотки на респираторные инфекции (A.R.I. WELL D‐ONE)
Code:19002
Analysis details
Methodology
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Expected Turnaround Time
1–2 days
Special Instructions
- Hydrate with plenty of plain, noncarbonated water 8–12 hours before sputum collection to aid expectoration.
- For 3–4 hours before oropharyngeal (throat) swabbing, do not eat or drink, avoid toothbrushing and mouth or throat rinses, and refrain from chewing gum or smoking.
- For 3–4 hours before nasal swabbing, do not use nasal drops or sprays and avoid nasal rinsing.
- When possible, collect swabs in the morning immediately after waking.
- Collect the specimen before starting antimicrobial therapy whenever feasible.
- Women: schedule urogenital swab or urine collection before menstruation or 2–3 days after it ends.
- Men: avoid urination for 3 hours prior to urogenital swab or urine collection.
- On the day of oral specimen collection, skip oral hygiene.
How to use
Aerobic and facultative anaerobic culture (routine bacterial culture) isolates and identifies the etiologic agent of suspected infection from a clinically relevant specimen. The test supports selection of targeted antimicrobial therapy by performing antibiotic susceptibility testing (culture and sensitivity) and can be used to assess therapeutic response through organism clearance or reduction in growth.
Limitations
Humans host a complex normal microbiota on skin and mucosal surfaces. The greatest proportion—approximately 40%—resides in the gastrointestinal tract, with the remainder distributed across the skin, oropharynx, urogenital tract, and other sites. Within this community, resident microorganisms constitute up to 90% of organisms present, facultative members account for less than 10%, and transient flora typically comprise no more than 0.5%. Microorganisms are also classified by pathogenic potential: nonpathogenic species do not cause disease; opportunistic (conditionally pathogenic) organisms can proliferate under favorable conditions and trigger inflammation; and pathogenic organisms act as primary etiologic agents and are not part of the normal flora. Bacteriologic culture of aerobic and facultative anaerobic flora characterizes both the qualitative and quantitative composition of microorganisms recovered from clinical material and enables identification of pathogens. When opportunistic organisms are detected in high titer or when pathogenic organisms are isolated, antimicrobial susceptibility testing is performed—typically to antibiotics and, where applicable, to bacteriophages—to inform targeted therapy.
| Reference interval | — |
|---|---|
| Indications | Evaluation of localized inflammatory processes of diverse anatomic sites suitable for culture, excluding inflammatory bowel disease. |
Specimen Requirements
| Specimen | Swab |
|---|---|
| Container | Swab in Amies Transport Medium |