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the T wave, which indicates ventricular repolarization.
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∙ 12y ago
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What does the ecg wave tracing represent?
Electrical Activity of the Heart
What is a description of the pericardiocentesis procedure?
Vital signs are monitored, an ECG tracing is run, sedation given and local anesthetic. A syrine with a cardiac needle is inserted slowly into the chest wall and into the pericardial sac, withdrawing fluid.
Describe the shape of an ECG trace?
Flat if your dead.
What produces a printed representation on ECG paper?
Know what happens in the P, QRS, and T complexes on an EEG?
Noninvasive?
DefinitionThe term noninvasive can refer to diseases, procedures, or devices:Noninvasive diseases usually do not spread to or damage other organs and tissues.Noninvasive procedures do not involve tools that break the skin or physically enter the body. Examples include x-rays, a standard eye exam, CT scan, MRI, ECG, and Holter monitoring.Noninvasive devices include hearing aids, external splints, and casts.Noninvasive is the opposite of invasive.
Deflection waves in an ECG tracing include?
the T wave, which indicates ventricular repolarization
How many deflection waves in an ecg?
6
What change in polarization is the t waves on an ecg tracing?
t wave just appears before the ventricular relaxation
Possible causes of a poor ECG tracing?
Causes for poor ECG tracing can be from the patient moving or interferences from electrical appliances in the room: cell phones, a lamp plug in etc
Which of the following results in extraneous marks on the ECG tracing?
Paperclips
Will a 60 cycle appliances interfere with a ECG tracing?
yes
What does the ecg wave tracing represent?
Electrical Activity of the Heart
In a normal ECG tracing?
the repolarization of the atria is hidden by the QRS wave
Does the atrial rate equal the ventricular rate in the ECG tracing?
yes
Why is it important that the ECG tracing be handled carefully?
Why is it important that the eck tracing be handled carefully and not be allow to smear or be folded in any way
What contraction of the atria results from which wave of depolarization on the ECG tracing?
P wave
What does a segment of an ECG tracing indicate?
P waves represent the atrial depolarization. QRS complex represent the ventricular depolarization. T waves represent the ventricular repolarization.
