Phlebotomy

A certification course focused on blood collection and specimen handling techniques.

Study Strategies

Mastering the Order of Draw

Why Order Matters

Collecting multiple blood samples? The sequence (order of draw) prevents cross-contamination of additives between tubes. Remember the standard order, typically starting with blood culture bottles, then coagulation tubes, followed by serum, heparin, EDTA, and glycolytic inhibitor tubes.

Tips to Remember

  • Use a mnemonic or color-coding chart to help memorize
  • Double-check tube labels and colors before collecting

Real-World Value

Correct order keeps test results reliable and patients safe.

Examples

  • Following the order of draw prevents test errors due to tube additives.

  • A mnemonic like 'Boys Can Save Healthy Energetic Girls' helps remember the sequence.