Nursing & Healthcare Exam Prep

Phlebotomy Exam Prep 37, Therapeutic Drug Monitoring — Peak vs Trough

3 min · 3. Juni 2026
Episode Phlebotomy Exam Prep 37, Therapeutic Drug Monitoring — Peak vs Trough Cover

Beschreibung

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 critical difference between trough (lowest drug concentration) and peak (highest drug concentration) levels. - Why precise timing is the most tested concept for therapeutic drug monitoring on the Phlebotomy exam. - How to correctly time a trough draw, which is always immediately before the next scheduled dose. - How to correctly time a peak draw for IV medications like vancomycin, which is 1-2 hours after the infusion is complete. - A simple mnemonic to remember the difference: "Trough is low, just before the go. Peak is high, after it's all inside." 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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151 Folgen

Episode Phlebotomy Exam Prep 51, Stool Specimen Collection Cover

Phlebotomy Exam Prep 51, Stool Specimen Collection

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 critical importance of avoiding urine and toilet water contamination for all stool samples and the reasons why. - Key dietary and medication restrictions (red meat, certain vegetables, aspirin, Vitamin C) required for the gFOBT and why the FIT does not have these restrictions. - The specific collection protocol for Ova and Parasites (O&P) testing, requiring three separate samples on different days. - The differences in sample requirements for specialized tests like C. diff toxin (requiring a fresh, unformed sample) and calprotectin (an inflammation marker). - A mnemonic to remember gFOBT restrictions: "No Red Meat on the Blue Sheet." 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

Gestern2 min
Episode Phlebotomy Exam Prep 50, Urine Drug Screen — Special Handling Cover

Phlebotomy Exam Prep 50, Urine Drug Screen — Special Handling

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 mandatory temperature range (90-100°F) and 4-minute timeframe for urine drug screens. - Why an unbroken chain of custody is legally critical and what constitutes a "broken" chain. - The difference between the collector's role (temperature check) and the lab's role (creatinine/specific gravity check) in detecting adulteration. - The specific triggers, like an out-of-range temperature, that require a directly observed collection. - A simple mnemonic (T-C-C: Temperature, Chain of Custody, Creatinine) to remember the key validation steps. 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

16. Juni 20264 min
Episode Phlebotomy Exam Prep 49, 24-Hour Urine — Patient Instructions Cover

Phlebotomy Exam Prep 49, 24-Hour Urine — Patient Instructions

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 correct procedure for starting a 24-hour urine collection by discarding the first void. - Why every void, including the first morning specimen on day two, must be collected. - The critical importance of continuous refrigeration or icing of the specimen. - How specific preservatives are required for certain tests and the associated safety precautions. - Common patient errors that invalidate the test and are frequently tested on the exam. 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

15. Juni 20262 min
Episode Phlebotomy Exam Prep 48, Urine Specimen Collection Types Cover

Phlebotomy Exam Prep 48, Urine Specimen Collection Types

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 first-morning specimen is the most concentrated, making it ideal for pregnancy and bacterial culture tests. - Master the precise steps of the mid-stream clean-catch technique for both males and females to prevent specimen contamination. - For a 24-hour urine collection, the patient must discard the first void to start the clock and then collect every subsequent sample, including the final one 24 hours later. - All urine specimens must be refrigerated or tested within two hours of collection to ensure the integrity of the sample. - A catheterized urine specimen must be drawn from the catheter's collection port, not the drainage bag, to obtain a fresh, uncontaminated sample. 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

14. Juni 20263 min
Episode Phlebotomy Exam Prep 47, Chain of Custody — Forensic Specimens Cover

Phlebotomy Exam Prep 47, Chain of Custody — Forensic Specimens

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 critical requirements for patient identification in forensic specimen collection. - How to properly use tamper-evident seals and packaging to maintain specimen integrity. - The function and correct completion of a chain of custody form, including tracking every handler. - Common exam traps, such as using an alcohol wipe for a blood alcohol test. - How to apply the 'I-D-S-S' mental shortcut (Identify, Document, Seal, Signatures) to chain of custody procedures. 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

13. Juni 20263 min