Lesson 1Choosing Sample Tubes, Additives (EDTA for CBC, Glycolytic Inhibitor for Glucose) and Reasons WhyExplains right tube types and additives for glucose and CBC tests, showing how EDTA keeps blood cells intact and glycolytic inhibitors stop glucose breakdown, including colour codes, fill amounts, and common errors in choosing tubes in Zambian labs.
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 SamplesDiscusses temperature, light, and time rules for glucose and CBC samples, covering cool packs, tube transport, and max holding times to keep test substances stable and avoid early breakdown or clotting in Zambian facilities.
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 Focus on Reducing HaemolysisGives a clear step-by-step guide for venipuncture to cut down haemolysis, including preparing tools, vein entry angle, tourniquet time, tube handling, and ways to avoid bubbling, too much pull, or repeated poking in Zambian practice.
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 4Right After Collection Handling: Mixing by Inverting, Blending, Clotting Times, and PortioningCovers steps right after drawing blood, like correct inverting times, mixing methods, clotting periods, readiness for spinning, and portioning to keep sample quality for glucose and CBC tests in Zambia.
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 Handling, and After-Procedure Patient Care and MonitoringDescribes safe throwing away of sharps and biohazard waste, dealing with accidental exposures, and key after-care for patients, including checking the site, giving instructions, and watching for bleeding, swelling, or fainting in Zambian settings.
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 Washing, and PPE Choice for Blood DrawingReviews basic safety rules for blood drawing, including hand washing, choosing PPE based on risks, cough etiquette, and safe habits to stop spread of blood germs and other infections in Zambia.
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 Choice, Tourniquet Use, and Order of Draw RulesExplains how to pick good veins, apply tourniquet safely, and follow CLSI draw order, stressing to prevent additive mixing and blood thickening that could change glucose or CBC results in Zambian labs.
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 8Labelling Needs and Key Documentation FieldsExplains must-have labels and records for glucose and CBC samples, like patient IDs, draw details, test requests, and legal rules, to track samples, cut errors, and help report accurate results in Zambia.
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 Before-Test Needs (Fasting, Consent, Medicine Check)Outlines proper patient ID and prep for glucose and CBC, including checking fasting, getting consent, reviewing medicines, and looking at recent sickness or treatments that might affect test reading in Zambian care.
Two-identifier verification processFasting status and timing confirmationInformed consent and patient educationMedication and supplement reviewRecent illness, exercise, or smoking checkSpecial considerations for diabeticsLesson 10Common Drawing Errors (Haemolysis, Wrong Labelling, Wrong Tube) and Effects on ResultsLooks at usual errors like haemolysis, wrong labels, and bad tube choice, explaining how they happen, spotting them, and impact on glucose and CBC accuracy, plus ways to stop and fix them in Zambia.
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
