Lesson 1Recognising and correcting common artefacts: movement, muscle tremor, baseline wander, AC interference, and poor contactThis lesson teaches you to identify common artefacts like movement, tremors, baseline wander, AC interference, and poor contact, and gives step-by-step ways to fix them before completing the recording.
Spotting patient movement artefactsHandling muscle tremors and shiveringFixing causes of baseline wanderReducing AC and electrical interferenceImproving electrode contact qualityChecking the tracing after fixesLesson 2Escalation protocol when abnormal/dangerous tracing identified: notifying clinician, activating emergency response, and documenting communicationsThis lesson describes what to do when you see dangerous or unexpected ECG results, including who to tell, how to start emergency response, and how to accurately record communications and times.
Defining abnormal and critical findingsNotifying the responsible clinicianActivating emergency response systemsStaying with unstable patientsRecording times and contacts madeHandover of ECG and clinical detailsLesson 3Patient identification and verifying test request against medical record and referral detailsThis covers checking patient identity, matching the ECG request to the medical record and referral, looking at indications and contraindications, and sorting out any differences to make sure the right test is done on the right person.
Using two unique patient identifiersMatching request to chart and wristbandConfirming indication and urgencyResolving discrepancies before testingDocumenting verification stepsLesson 4Room and equipment preparation: safety checks, infection control, electrical safety, and privacy setupThis lesson explains preparing the ECG room and equipment, including infection control, electrical and cable safety checks, privacy measures, and getting supplies ready for a safe, comfortable, and proper testing space.
Daily ECG machine function checkInspecting leads and power cordsCleaning couch and high-touch surfacesHand hygiene and PPE selectionPositioning screens and drapesStocking paper, electrodes, and gelLesson 5Recording special populations and technical variants: obese patients, left ventricular hypertrophy, bundle branch block, and paced rhythmsThis details changes needed for obese patients and those with LVH, bundle branch block, or paced rhythms, including adjusting lead placement, technical settings, and noting variants for correct interpretation.
Adjusting leads in obese patientsRecording in suspected LVHECG features of bundle branch blockCapturing paced rhythms accuratelyDocumenting nonstandard lead positionsNoting technical limitations on reportLesson 6ECG acquisition settings: filter, gain, paper speed, leads display, and calibration checksThis explains main ECG machine settings like paper speed, gain, filters, lead display, and calibration checks. It stresses when to change settings and how to confirm calibration for accurate measurements.
Standard paper speed and when to changeAdjusting gain for small or large signalsUsing muscle and baseline filters safelySelecting lead display formatsRunning a 1 mV calibration signalRecording settings on the ECG printoutLesson 7Skin preparation techniques: shaving, abrasion, cleaning, and electrode selectionThis covers checking and preparing skin, including shaving hair, gentle rubbing, cleaning with right agents, and picking suitable electrodes to lower resistance and cut down on artefacts.
Inspecting skin for lesions or devicesShaving excessive chest hair safelyUsing abrasion to lower impedanceCleaning with alcohol or soapSelecting appropriate electrode typeEnsuring firm electrode adhesionLesson 8Standard ECG lead positions: limb leads, precordial leads V1–V6, and anatomical landmarksThis reviews standard limb and precordial lead positions, important body landmarks, and common errors. It stresses accurate, repeatable placement for good diagnostic quality and comparable ECGs.
Right and left limb lead placementLocating intercostal spacesCorrect V1 and V2 positioningPlacing V3–V6 along the chest wallAvoiding breast tissue displacement errorsChecking symmetry and consistencyLesson 9Immediate recognition of life-threatening patterns: STEMI, ventricular tachycardia, complete heart block, and asystole and immediate actionsThis focuses on quickly spotting STEMI, ventricular tachycardia, complete heart block, and asystole on a resting ECG, and outlines immediate steps, escalation paths, and basic safety for the technician.
ECG criteria for STEMI detectionIdentifying ventricular tachycardiaRecognising complete heart blockConfirming true asystole vs artefactImmediate actions and escalationDocumenting critical ECG eventsLesson 10Post-test documentation: report components, transmitting ECG to physician, storage, labelling, time stamps, and quality assurance logsThis outlines needed post-test records, including labelling, time stamps, report parts, storage, secure sending to the doctor, and quality logs for tracking and checks.
Essential identifiers on each tracingRecording date, time, and operatorSummarising technical quality notesTransmitting ECG to physician systemsArchiving and backup proceduresCompleting QA and incident logs
