Lesson 1Sample tube selection, additives (EDTA for CBC, glycolytic inhibitor for glucose) and rationaleDis part go explain proper tube types and additives for glucose and CBC, we go describe how EDTA help preserve cell shape and glycolytic inhibitors keep glucose stable, plus color coding, fill volume, and common mistakes in selection.
EDTA tube selection for CBC testingFluoride oxalate and other glycolytic inhibitorsTube color codes and manufacturer variationsRequired fill volume and anticoagulant ratioAdditive mechanisms and cellular effectsConsequences of wrong tube selectionLesson 2Storage, transport conditions, and time limits for glucose and CBC samplesWe go cover temperature, light, and time limits for glucose and CBC samples, including use of cool packs, pneumatic tubes, and maximum holding times, to keep analyte stable and prevent damage or clotting before analysis.
Room temperature vs refrigerated storageUse of ice slurries for glucose stabilityTransport timing for CBC samplesPneumatic tube and courier considerationsMaximum pre-analytical holding timesMonitoring and documenting transport conditionsLesson 3Step-by-step venipuncture technique with emphasis on minimizing hemolysisDis go provide step-by-step venipuncture method focused on reducing hemolysis, covering equipment preparation, vein entry angle, tourniquet timing, tube handling, and ways to avoid frothing, too much suction, or repeated probing.
Pre-assembly and inspection of equipmentOptimal skin antisepsis and drying timeNeedle angle, depth, and vein anchoringTourniquet release timing and impactGentle tube filling and avoiding frothingManaging difficult draws without traumaLesson 4Immediate post-collection handling: inversion, mixing, clotting times, and aliquotingWe go cover immediate steps after venipuncture, including correct number of inversions, mixing method, clotting times, readiness for centrifugation, and aliquoting, to maintain sample integrity for glucose and CBC analysis.
Inversion counts for EDTA and fluoride tubesProper mixing technique to avoid hemolysisRequired clotting times for serum tubesTiming of centrifugation for stabilityAliquot labeling and secondary containersHandling delays and documentationLesson 5Waste disposal, sharps management, and post-procedure patient care and monitoringDis go describe safe disposal of sharps and biohazard waste, handling accidental exposures, and essential post-procedure patient care, including site check, instructions, and monitoring for bleeding, hematoma, or vasovagal reactions.
Sharps container selection and placementSegregation of infectious and noninfectious wasteNeedlestick and exposure response stepsPost-venipuncture site assessmentPatient instructions after blood drawDocumentation of incidents and follow-upLesson 6Standard precautions, hand hygiene, and PPE selection for phlebotomyWe go review standard precautions for phlebotomy, including hand washing, PPE choice based on risk assessment, respiratory etiquette, and safe work practices to stop spread of bloodborne and other pathogens.
Indications and technique for hand hygieneGloves, gowns, masks, and eye protectionRisk-based PPE selection for phlebotomyRespiratory hygiene in collection areasEnvironmental cleaning of draw stationsPolicies for immunocompromised patientsLesson 7Vein selection, tourniquet use, and order of draw principlesDis go explain criteria for choosing good veins, safe tourniquet application, and CLSI order of draw, stressing prevention of additive carryover and hemoconcentration dat could change glucose or CBC results.
Preferred and alternative venipuncture sitesAvoiding compromised or painful veinsTourniquet placement and time limitsEffects of prolonged stasis on resultsCLSI order of draw sequence detailsOrder of draw for multiple glucose tubesLesson 8Labeling requirements and essential documentation fieldsWe go explain mandatory labeling elements and documentation for glucose and CBC samples, including patient identifiers, collection details, test requests, and legal requirements, to ensure traceability, reduce errors, and support accurate result reporting.
Primary and secondary patient identifiersDate, time, and collector identificationTest orders, priority, and clinical notesLabel placement on glucose and CBC tubesElectronic vs paper requisitionsLegal and accreditation documentation needsLesson 9Patient identification and pre-test requirements (fasting, consent, medication review)Dis go outline correct patient identification and pre-test preparation for glucose and CBC, including fasting check, consent, medication review, and assessment of recent illness or procedures dat may affect test interpretation.
Two-identifier verification processFasting status and timing confirmationInformed consent and patient educationMedication and supplement reviewRecent illness, exercise, or smoking checkSpecial considerations for diabeticsLesson 10Common collection errors (hemolysis, mislabeling, wrong tube) and impact on resultsWe go analyze common collection errors like hemolysis, mislabeling, and wrong tube choice, describing how dem happen, how to detect dem, and impact on glucose and CBC accuracy, plus ways to prevent and correct dem.
Causes and recognition of hemolyzed samplesMislabeling risks and prevention methodsWrong tube or additive selection errorsUnderfilling and clotting in EDTA tubesSpecimen rejection criteria for labsCorrective actions and staff retraining
