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L05 Electrocardiography I

BSL ECG Lesson
This BSL lesson provides an introduction to the electrocardiograph and the recording of the heart’s electrical signal. The lesson familiarizes the students with a Lead II ECG recording and with the components of the ECG complex. They will learn to correlate the electrical events of the ECG (P, Q, R, S & T components) with the mechanical events of the cardiac cycle. Students will perform a number of tasks designed to promote changes in the ECG complex, and then perform a detailed analysis of their ECG recording.

Experimental Objectives

  1. To become familiar with the electrocardiograph as a primary tool for evaluating electrical events within the heart.
  2. To correlate electrical events as displayed on the ECG with the mechanical events that occur during the cardiac cycle.
  3. To observe rate and rhythm changes in the ECG associated with body position and breathing.

Tasks Performed by the Student

BSL Lessons are designed to allow at least four students to record and save data in a normal lab period (60-90 minutes). Typically, labs work most efficiently with three or more students working together at each BSL station.

Videos

BSL 4 L05 ECG I - Electrocardiography

BSL 4 L05 ECG I – Seated Recording

Biopac Student Lab Student Download

Lesson Hardware

This lesson requires a Biopac Student Lab (BSL) System and the following hardware. If your BSL System does not include all hardware items, expand your system by selecting required items below. For more details, review the Lesson: L# BSL Lessons - see the Lab Manual or launch BSL; A# and H# BSL PRO Lessons, click the PDF link above to review full setup, recording, and analysis procedures.

ItemNameCart
SS2LBLead set, shielded, BSLAdd to Cart
GEL1Electrode gel 50 gAdd to Cart
EL503Disp. Gen-purp electrode 100/pkAdd to Cart
ELPADAbrasive Pads 10/pkAdd to Cart
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