unit 10
Which artifact is caused by electrical interference?
60 Cycle Interference
Name 2 of the absolute contraindications?
Acute MI, uncontrolled heart failure, unstable angina,uncontrolled arrhythmias that have decreased CO, symptomatic aortic stenosis, dissecting aneurysm, acute pulmonary embolism
What are the hallmark signs that a rhythm is a junctional rhythm?
upside down p wave before or after QRS, no p wave, and tall and skinny QRS
how many electrodes do you attach to the trunk of the body.
five
What is a junctional escape beat?
It comes late after the next expected sinus beat.
Which leads goes on the mid-clivicular line?
V4
True or False
When preparing for a stress test and in order to prevent nausea, pts are advised not to eat a large meal for at least 4 hours prior to the test.
True
What kind of rhythm is the following:
Regularity: Regular
Rate: 30 bpm
P wave: pres, upside down, after QRS
Junctional Bradycardia
how long is the holter monitor worn for?(range)
24 hours to 7 days
What are 2 indications of the Holter Monitor
Syncope, intermittent chest pain, shortness of breath, suspected dysrhythmias, determining if dysrhythmia treatment is working
How many precordial leads are there?
V1-V6
True or False
Having a positive stress test the ST segment depression is greater than or equal to 1.0 to 1.5 mm that does not return to baseline within 0.08 seconds after the J point.
True
What is the difference between Accelerated Junctional Rhythm and Junctional Tachycardia?
The rates: Accelerated Junctional Rhythm rate is 60-100 while Junctional Rhythm rate is over 100
when should the patient press the button?
when the patient is experiencing symptoms that he/she has told doctor about.
What is a normally a continuous 3 lead monitor for pts in hospital
Telemetry
WHat are the augmented leads?
What type of ST segment depressions are there?
J sloping, Horizontal, Down sloping
Impulse goes backwards towards atria therefore P wave is upside down. What is the region of the AV impulse?
High region
what is a holter monitor?
an EKG device used to rule out intermittent arrhythmia's, or cardiac ischemia that might be missed on a routine EKG.
Every 2.5 minutes
What is the recording of the heart's electrical impulses?
Electrocardiography
Do you immediately stop when the ST segment elevates?
Yes
Where is the AV junction tissue located?
Between the right atrium and ventricle and surrounding the AV node
what are some instructions given to the patient?
no bath or shower. sponge bath only
continue with daily routine
document when hit the button
press the button when experiencing symptoms.
What medications may be held for a period of time before the stress test as they can prevent the heart rate from reaching targeted levels?