Phlebotomy Exam Prep 59, Diurnal Variation Drug and Hormone Tests

Phlebotomy Exam Prep 59, Diurnal Variation Drug and Hormone Tests

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: - Cortisol levels peak around 8 AM and are lowest in the evening, a critical timing factor for diagnosing endocrine disorders like Cushing's or Addison's disease. - Other common tests like ACTH, TSH, and iron also exhibit significant diurnal variation, making morning collections the standard for accurate interpretation. - Therapeutic drug monitoring requires precise timing for trough levels (drawn right before the next dose) and peak levels (drawn after the dose is administered). - A common exam trap is identifying an incorrect draw time as a pre-analytical error that can lead to misinterpretation of results for time-sensitive tests. - Accurately documenting the exact time of collection is a crucial responsibility for a phlebotomist to ensure the clinical value of timed specimens. 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

Phlebotomy Exam Prep 58, Fasting Requirements by Test

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: - The standard 8 to 12-hour fasting requirement for key tests like glucose, lipid panels, and fasting insulin. - Why the Glucose Tolerance Test (GTT) requires a strict fast for the initial baseline draw. - The unique requirement for morning fasting for iron studies due to diurnal variation. - The critical importance of documenting patient non-compliance with fasting instructions. - That plain water is not only allowed but encouraged during fasting to aid in venipuncture. 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

Phlebotomy Exam Prep 57, Pre-Analytical Errors — The 60% Problem

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: - Pre-analytical errors, which occur before lab testing, account for up to 70% of all lab mistakes and are a major focus on the Phlebotomy exam. - Improper patient identification is the most critical pre-analytical error; exam questions will test your ability to follow strict ID protocols without exception. - Hemolysis, the rupture of red blood cells often caused by incorrect collection technique, can falsely elevate analytes like potassium. - Violating the correct order of draw can lead to additive cross-contamination, causing dangerously inaccurate results, such as falsely lowered calcium levels. - Prolonged tourniquet application beyond one minute causes hemoconcentration, and drawing from an arm with an IV requires specific procedures to avoid sample contamination. 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

Phlebotomy Exam Prep 56, Quality Control in Phlebotomy

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: - Daily QC for POCT devices requires running two levels of controls: a low/normal and a high/abnormal. - Levey-Jennings charts are used to visually track QC data over time, helping to identify shifts and trends that indicate potential problems. - The Westgard 1-3s rule requires immediate rejection of a QC run if a result falls outside three standard deviations from the mean. - When a QC result is out-of-range, you must stop patient testing immediately and perform corrective action before rerunning the control. - Meticulous documentation of all QC results, out-of-range flags, and corrective actions is mandatory for regulatory inspections. 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

Phlebotomy Exam Prep 55, POCT Glucose — Fingerstick Technique

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 washing with soap and water is the correct exam answer over using alcohol for site preparation. - The critical reason for wiping away the first drop of blood to avoid sample contamination with interstitial fluid. - The difference between applying gentle pressure versus the incorrect technique of "milking" the finger. - How to handle and report critical glucose values, a key patient safety topic on the exam. - The required frequency of quality control (QC) checks to ensure meter accuracy before patient testing. 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