Medical Test Tubes with Color-Coded Liquid Samples - Lab Diagnostic Visualization #1858823 (License: Personal Use)

This vector illustration shows four standard vacutainer-style test tubes with royal blue screw caps, each half-filled with a uniquely colored liquid: lavender/purple, beige/tan, bright pink, and pale yellow. The colors correspond to common anticoagulant or additive types used in clinical diagnostics-e.g., purple for EDTA, yellow for serum separation, pink for hematology, and beige for serum or plasma collection. The clean, glossy design emphasizes clarity for educational or informational use.

Used on medical, laboratory, or healthcare websites to illustrate blood collection protocols, diagnostic workflows, or educational content about phlebotomy and specimen handling. Matches user intent for visual learning, clinical training, or patient-facing explanations of lab tests.