Exam (elaborations)
CRAT .
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Exam of 9 pages for the course CRAT Prep at CRAT Prep (CRAT .)
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CRATWhat pacemaker complications involves irregular pacemaker intervals with slower that set
rate impulses and no visual packer spike? - correct answer-Malfuctioning
Potassium and __________ are needed in order for the heart to function normally - correct
answer-Calcium
Premature atrial contractions are rarely dangerous but with what condition could this be an
early sign of heart failure or electrolyte imbalance? - correct answer-Acute myocardial
infarction
As an electrical current travels toward the negative pole on an ecg, the waveform defects in
which direction? - correct answer-Downward
late ventricular depolarization is represented by? - correct answer-S wave
Why is the left side of the heart thicker than the right? - correct answer-It pumps blood back
to all the parts of the body
What starts at the beginning of the p wave and stops at the begging of the QRS complex? -
correct answer-PR interval
A common cause of artificial on a cardiac rhythm strip would be considered? - correct
answer-Somatic tremors
How many leads does a 24 hour holter monitor have? - correct answer-5
If there is a preconfigured group of orders which are commonly ordered together for a
specific diagnosis or condition would be? - correct answer-Order set
A single chamber pacemaker has one lead inserted into either the right atrium or? - correct
answer-Right ventricle
If a patient is experiencing ventricular fibrillation where in the heart would the electrical
impulses come from? - correct answer-Many different foci
What condition would be a biventricualr pacer typically be used for? - correct answer-Pre
cardiac transplant patients
The heart activity that begins with atrial depolarization and ends with the start of ventricular
depolarization is know as? - correct answer-PR interval
If the T wave is bumpy instead of smooth what might it indicate? - correct answer-Hidden p
wave
, paroxysmal atrial tachycardia commonly follows? - correct answer-Premature atrial
contractions
Atrial standstill is called________ if only one or two beats are not formed - correct
answer-Sinus pause
True or False
SA node failure could cause sinus arrest - correct answer-True
What acts as a safety mechanism to protect the heart from ventricular standstill? - correct
answer-Idioventricular rhythms
What can occur with coronary artery disease, cardiomyopathy, cor pulmonale, and
pulmonary embolism? - correct answer-Right bundle branch block
What color is the chest lead? - correct answer-Brown
What could be administered to a patient to correct a junctional escape rhythm? - correct
answer-Atropine
Impulses causing depolarization twice in a row in a faster than normal rate are referred to as
which of the following? - correct answer-Re-entry events
vagal maneuvers and medications such as which of the following can be employed to slow
the heart rate on symptomatic junctional tachycardia patients? - correct answer-Adenosine
If the Q wave is absent, the QRS complex should be measured from the beginning of which
wave? - correct answer-R
What artifact setting is commonly used to reduced artifact due to muscle tremor and slight
patient movement? - correct answer-40 Hz
What would you see on an ekg when looking for 2nd degree type 2 - correct
answer-Occasionally dropped beat with normal AV node conduction
When interpreting a rhythm which one should always be irregular - correct answer-Atrial
fibrillation
The semilunar valves are called such because the cusps on these caves resemble? - correct
answer-Half moons
The data that is entered into an EKG machine would be considered? - correct answer-Input
In the pacemaker codes the first letter represents what? - correct answer-The heart chamber
being paced
The type of AV block that could cause cardiovascular collapse would be? - correct
answer-Complete heart block (3rd degree)
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