Final Answer:
Blood culture tube (Stop, SPS): This refers to a blood collection tube containing Sodium Polyanethol Sulfonate (SPS) as an anticoagulant and a microbial barrier. The "Stop" in the context implies a stopper or cap that seals the tube, preventing contamination or leakage.
Step-by-step explanation:
The designation "Blood culture tube (Stop, SPS)" signifies a specific type of blood collection tube used in clinical settings, particularly for blood culture tests. Blood cultures are crucial for diagnosing bloodstream infections, and the choice of the right tube is essential to maintain sample integrity. The term "Stop" indicates the presence of a stopper or cap, ensuring a closed system to preserve the sample.
The use of SPS in the tube serves two main purposes. First, SPS acts as an anticoagulant, preventing blood clotting and maintaining the liquid state of the collected blood. Second, it functions as a microbial barrier, inhibiting the growth of bacteria and other microorganisms in the blood culture sample. This is vital for obtaining accurate and reliable results in microbiological testing.
In laboratories, proper specimen collection is critical for ensuring the validity of test results. The "Blood culture tube (Stop, SPS)" specification guides medical professionals in using the appropriate tube to collect blood for cultures, maintaining the sample's purity and preventing contamination during transportation to the laboratory.
In summary, the term provides a concise description of a blood collection tube designed for blood culture tests, incorporating a stopper for sealing and SPS for anticoagulation and microbial inhibition.