Vacuum Blood Collection Tube~1
6 month ago
Key Features:
- **Color:** Royal blue or light blue cap (though some sources may describe it as green or gray depending on manufacturer).
- **Additive:** Lithium heparin (an anticoagulant).
- **Form:** Gel separator (a gel barrier inside the tube that separates serum/plasma from cells after centrifugation).
- Used for **plasma collection** in tests requiring anticoagulated blood.
- Ideal for **chemistry, toxicology, and therapeutic drug monitoring** (e.g., drug levels, electrolytes, metabolic panels).
- The **gel barrier** helps prevent hemolysis and ensures clear separation of plasma from blood cells during centrifugation.
Important Notes:
- **Not suitable for coagulation studies** (e.g., PT/INR, APTT), which require citrate tubes (light blue top).
- **Avoid hemolysis** — improper handling can lead to inaccurate results.
- Must be **inverted gently 8–10 times** immediately after drawing to mix the anticoagulant properly.
- Always follow proper labeling and timing guidelines.
Common Applications:
- Drug level monitoring (e.g., lithium, phenytoin)
- Electrolyte and metabolic panel testing
- Toxicology screens
- Hormone assays
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