This biology question covers important biological concepts and processes. The step-by-step explanation below helps you understand the underlying mechanisms and reasoning.
ScanSolve AI Answer
Here are the special specimen collection procedures for culture: 1. Urine Transportation Temperature: Transport at room temperature if processed within 2 hours. If processing is delayed, refrigerate at 2-8^. Transport Media: A sterile, leak-proof container is standard. For delays up to 24 hours, a urine transport tube containing boric acid* can be used to prevent bacterial overgrowth. Preservation for Culture: Refrigeration at 2-8^ for up to 24 hours helps maintain pathogen viability and inhibits the proliferation of commensal bacteria. 2. Sputum Transportation Temperature: Transport at room temperature (20-25^) if processed within 1-2 hours. For longer delays, refrigerate at 2-8^. Transport Media: A sterile, leak-proof container is typically sufficient for routine bacterial culture. No specialized transport media is usually required. Preservation for Culture: Refrigeration at 2-8^ for up to 24 hours is recommended to preserve the integrity of the specimen and prevent overgrowth of oral flora. 3. Cerebrospinal Fluid (CSF) Transportation Temperature: CSF specimens require immediate transport to the laboratory at room temperature* (20-25^). Refrigeration is strictly contraindicated as it can kill sensitive pathogens. Transport Media: No transport media is used. CSF is collected directly into sterile tubes. Preservation for Culture: The most critical preservation method is immediate processing. If a very short delay is unavoidable, the specimen should be kept at room temperature. For optimal recovery, especially if processing is delayed, CSF can be inoculated directly into a blood culture bottle*. That's 2 down. 3 left today — send the next one.