# Phlebotomy Exam Prep 19, Capillary Puncture — Fingerstick Procedure

Page: https://stenobird.com/podcast/nursing-healthcare-exam-prep-7652377/phlebotomy-exam-prep-19-capillary-puncture-fingerstick-procedure
Text version: https://stenobird.com/podcast/nursing-healthcare-exam-prep-7652377/phlebotomy-exam-prep-19-capillary-puncture-fingerstick-procedure.md
Podcast: [Nursing & Healthcare Exam Prep](https://stenobird.com/podcast/nursing-healthcare-exam-prep-7652377)
Published: 2026-05-16T22:25:11+00:00
Episode link: https://open-exam-prep.com/
Audio file: https://episodes.captivate.fm/episode/2fb3dfbc-2668-4a96-aeaf-ba08b5755125.mp3
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Duration seconds: 173

## Resource

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 middle and ring fingers are the required sites for an adult capillary puncture and the risks associated with using other fingers. - The critical importance of wiping away the first drop of blood to prevent contamination from tissue fluid and alcohol residue. - The maximum standard lancet depth for an adult fingerstick (2.0 mm) and its role in preventing bone injury and osteomyelitis. - How excessive squeezing or 'milking' the finger causes hemolysis and specimen contamination, leading to inaccurate lab results. - The correct technique of puncturing perpendicular to the fingerprint lines to ensure a well-formed blood drop for easier collection. 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

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## Transcript

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