Бак. посев спермы на микрофлору с определением чувствительности к антибиотикам

Aerobic and facultative anaerobic culture with antibiotic susceptibility testing (MIC) isolates and identifies bacteria from clinical specimens and provides susceptibility profiles to direct targeted antimicrobial therapy. This bacteriological culture supports distinction between infections due to aerobic organisms and those requiring separate anaerobic culture, and it reports minimum inhibitory concentrations to aid dosing and drug selection. The test is ordered to assess persistent, latent, or chronic infections in which cultivable bacteria may be present at low levels or be difficult to grow with routine methods, and to choose an effective antibiotic regimen for the documented pathogen.

Anaerobic microorganisms do not require oxygen for survival and replication; for many, oxygen is deleterious. They are part of the normal human microbiota of the gastrointestinal tract, respiratory tract, and genitourinary system. With impaired host defenses or tissue injury, endogenous anaerobes can cause infection; exogenous inoculation also occurs with deep puncture wounds, infected abortions, thoracoabdominal injuries, or placement of pins and prostheses. In soft tissues, anaerobic infections may present with firm edema, gas formation with palpable crepitus, putrid inflammation, and malodorous discharge, and they can manifest as cellulitis, abscesses, or myositis. Management of established anaerobic soft‑tissue infection is primarily surgical—source control and opening the wound to allow oxygen exposure, which is harmful to obligate anaerobes. Aerobes require free oxygen for energy production and growth. Successful cultivation of aerobic bacteria depends on suitable media, controlled oxygen tension, and appropriate temperatures. Each organism has a characteristic range of oxygen concentrations that supports replication. Facultative anaerobes complete their energy and reproductive cycles via anaerobic pathways yet can also grow in the presence of oxygen; in contrast, obligate anaerobes cannot tolerate oxygen. Facultative anaerobes derive energy through the breakdown of organic and inorganic substrates. For differential evaluation of aerobic versus anaerobic etiologies, culture of the clinical specimen is performed. The bacterial species grown are identified to correlate with the inflammatory process. Once a pathogen is isolated, antibiotic susceptibility testing, including determination of minimum inhibitory concentrations, should follow. Given increasing antimicrobial resistance, empirical selection based solely on spectrum may be ineffective; phenotypic susceptibility testing helps select the antibiotic with the highest expected efficacy for the specific isolate.