EKG
What is a normal heart rate for a bradycardic patient?
Less than 60 bpm.
Where is the apex of the heart?
bottom of the heart at the leftmost tip.
What is significant about the R-R intervals in a regular rhythm?
They vary by 1-2 little blocks
right arm
Structure that prevents blackflow of blood?
valve
Count the number of P waves
What do the P waves look like in a normal rhythm?
upright, matching, and precede the QRS complex.
What are 3 possible causes of sinus tachycardia?
CHF, anxiety, and fever
What does paroxysmal mean?
starting and stopping suddenly
Which valves open to allow the ventricles to fill?
Tricupsid and mitral
How many hours pre-stress testing must a patient fast?
four hours
After the sinus node initiates an impulse, where does it go?
interatrial tracts
A patient is stating he has intermittent episodes of tachycardia followed by palpitations. What monitoring device would be most appropriate?
Event monitor
PJCs are what?
A result of usurpation
Blood clots collecting in the atrium are possible complication of what rhythm?
Atrial Fibrillation
In high junctional rhythms, the P wave is _______?
inverted preceding the QRS
For stress testing, What is the target heart rate? submaximal?
Target is : 220-pts age x 85%
Submaximal: 220-pts age x 70%.
What is the point called where the QRS complex and the ST segment join together?
J- point
The PR segment is located between__________.
P wave and the QRS complex
Which medication would most likely be used for pharmcological stress testing?
Adenosine
Lead I+ Lead III= Lead II
A pacemaker is treatment for what degree of AV block?
3rd degree
Ischemia
the coronary circulation supplies oxygenated blood to the myocardium during __________.
diastole
Which of the following ions has a direct effect on the ventricular muscle contraction?