EKG Chp 5 and Chp 6

Depolarization in the context of heart function is the process that changes the cell membrane potential to initiate contraction.

• It is the process where heart muscle repolarizes after contraction.

• It is the process that leads to the loss of electrical potential causing heart muscle contraction.

• It is the process that changes the cell membrane potential to initiate contraction.

• It is the process in which the heart inhibits electrical impulses.

Repolarization in the context of heart function refers to the restoration of the heart's resting membrane potential following a contraction.

• The restoration of the heart's resting membrane potential following a contraction.

• The contraction phase of the heart muscle.

• The process of the heart filling with blood.

• The acceleration of heart rate during physical activity.

Electrodes in EKG technology are sensors that detect the heart's electrical activity.

• Sensors that detect the heart's electrical activity

• Devices used for measuring blood pressure

• Instruments for monitoring respiratory activity

• None of the above

In EKG technology, lead wires are conductive cables that connect electrodes to the EKG machine.

• Conductive cables that connect electrodes to the EKG machine.

• Non-functional decorative cables.

• High voltage power cables used for energy supply.

• Software interfaces that manage signal processing.

What are leads in an EKG?

• Graphical representations of the heart's electrical activity

• Electrodes that record the electrical signals of the heart

• The frequency of the heartbeats

• Artifacts in the EKG recording

An EKG tracing is a record of the electrical activity of the heart.

• A tracing of the electrical activity of the heart.

• A test for lung capacity.

• A measurement of liver enzymes.

• A scan of brain activity.

Echocardiogram is a diagnostic test that uses ultrasound to capture images of the heart.

• A diagnostic test that uses ultrasound to capture images of the heart

• A procedure that uses x-rays to examine the heart

• A blood test to check for heart conditions

• A surgical procedure to repair the heart

Voltage in the context of EKG technology refers to a measurement of electrical potential difference across the heart, typically recorded in millivolts.

• It is the measurement of electrical potential difference across the heart, typically recorded in millivolts.

• It is the measurement of the heart rate per minute.

• It indicates the duration of the QRS complex.

• It represents the interval between heartbeats.

Telemetry in EKG technology is the remote monitoring and transmission of heart signals.

• It is the remote monitoring and transmission of heart signals.

• It is the direct interpretation of heart signals on-site.

• It refers to the manual measurement of heart signals.

• It is the simultaneous monitoring of heart signals and blood pressure.

Ambulatory monitoring in EKG technology is a technique that records EKG signals continuously over an extended period while the patient is ambulatory.

• It records EKG signals continuously while the patient performs daily activities.

• It captures EKG signals only during short, stationary tests.

• It is an invasive procedure monitoring brain activity.

• It relies solely on manual pulse measurement.