Episode
Phlebotomy Exam Prep 4, Needle Gauge and Length Selection
- Published
- May 1, 2026
- Duration seconds
- 172
- Processing state
not_requested- Canonical source
- https://open-exam-prep.com/
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Summary
This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams. In this episode you will learn: - Why the 21-gauge needle is the standard for routine adult venipuncture. - When to select a 22-gauge needle for patients with smaller or fragile veins. - The appropriate use of a 23-gauge butterfly needle for difficult or pediatric draws. - How to remember the inverse relationship between gauge number and needle diameter with a simple mnemonic. - How incorrect needle selection, particularly using a gauge that is too small, can lead to hemolysis and compromised test results. For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep