EKG

EKG

Assessment

Flashcard

•

Science

•

6th - 8th Grade

•

Hard

Created by

Barbara White

FREE Resource

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14 questions

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1.

FLASHCARD QUESTION

Front

Electrocardiography Noun

[uh-lek-troh-kar-dee-og-ruh-fee]

Back

Electrocardiography


The process of producing a recording of the heart's electrical activity, used to diagnose various cardiac conditions.

Example: This diagram shows where to place sensors, called electrodes, on the chest to record the heart's electrical activity during an electrocardiography (EKG) test.
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2.

FLASHCARD QUESTION

Front

Electrocardiogram (EKG/ECG) Noun

[uh-lek-troh-kar-dee-uh-gram]

Back

Electrocardiogram (EKG/ECG)


The graphical representation or tracing that shows the heart's electrical activity, recorded by an electrocardiography machine.

Example: An electrocardiogram (EKG) shows the heart's electrical activity as a waveform with distinct parts like the P wave, QRS complex, and T wave.
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3.

FLASHCARD QUESTION

Front

Amplitude Noun

[am-pli-tood]

Back

Amplitude


The measure of voltage on an EKG, representing the strength of the heart's electrical signal, measured vertically on the grid.

Example: This diagram shows a wave, similar to an EKG trace. Amplitude is the height of the wave from the center line to its highest point (peak).
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4.

FLASHCARD QUESTION

Front

Calibration Noun

[kal-uh-brey-shuhn]

Back

Calibration


The process of setting standard measurements for an EKG machine, such as speed and gain, to ensure accurate readings.

Example: This image shows a serial dilution, a lab technique to create solutions of known concentrations. This is a form of calibration in chemistry, not for an EKG machine.
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5.

FLASHCARD QUESTION

Front

Gain Noun

[geyn]

Back

Gain


A setting on an EKG machine that controls the amplitude or height of the waveforms displayed on the tracing.

Example: This image shows an EKG calibration pulse, where a 1 millivolt (mV) signal creates a 10 millimeter (mm) high box, demonstrating the machine's 'gain' or sensitivity.
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6.

FLASHCARD QUESTION

Front

Deflection Noun

[dih-flek-shuhn]

Back

Deflection


The movement of the EKG stylus either up or down from the baseline, creating the waves and complexes of the tracing.

Example: This diagram shows that when a wave of electrical charge moves toward a positive sensor (lead), it causes an upward spike, or positive deflection, on an EKG.
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7.

FLASHCARD QUESTION

Front

Sinoatrial Node Noun

[sahy-noh-ey-tree-uhl nohd]

Back

Sinoatrial Node


A small mass of specialized tissue in the heart's right atrium that acts as the natural pacemaker, initiating heartbeats.

Example: This diagram shows the sinoatrial (SA) node at the top of the heart, where the electrical signal for a heartbeat begins and travels downwards.
Media Image

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