WaAaAaAve Forms
What wave represents the contraction of the ventricles?
QRS wave
What is the first thing an MA has to do prior to starting the procedure as soon as they enter the room?
Identify the patient.
If a patient's left leg is amputated from the knee down, where should the MA place the right leg electrode?
On the upper right thigh
What occurs during an atrial flutter?
Atrial tissue is firing at a rate faster than the rate at which the ventricles are responding.
What should the MA do if the patient experiences syncope upon rising from the testing position?
What occurs during the P wave?
Atrial depolarization/contraction
In what position should the patient be for a standard EKG test?
Supine position
Leads l, ll, and lll are unipolar leads.
True or False
False. They are bipolar
How are atrial rhythms classified?
The absence of P waves on the EKG.
What should the MA do if a patient experiences shortness of breath during stress testing?
Alert the provider.
What is something unique about the U wave?
The U wave is not always visible.
What two supplies do you need to transmit impulses when performing an EKG exam?
electrodes and electrolyte gel
What leads are augmented?
Leads aVL, aVR, aVF
regular, fast rhythm, irregular, large, wide QRS complexes, P wave is absent.
Ventricular Tachycardia
What should the MA instruct the patient to do if a lead falls off during Holter monitoring?
Write it down in their diary/journal.
What interval represents the time from the beginning of atrial depolarization and the beginning of ventricular depolarization?
PR interval
What is the average amplitude for an EKG exam?
10mm or 1mv
What universal color is the left leg lead?
red
What is another name for AC interference?
60-cycle interference.
What button should patients press when they experience cardiac symptoms during Holter monitoring?
The "event" button
What segment occurs after the QRS complex?
ST segment.
What is the normal speed for an EKG exam?
25mm/second
In what order should the MA place the chest leads?
V1, V2, V4, V3, V5,V6
What will broken and disconnected lead wires lead to?
Interrupted Baseline
If a patient can not run on a treadmill or ride a stationary bike, they might receive a non-exercise stress test. What does that mean?
The MA will administer a medication that mimics the stress placed on the heart during activity.