ekg test UPDATED ACTUAL Questions and CORRECT Answers

ekg test UPDATED ACTUAL Questions and CORRECT
Answers
1. EKG Strips EKG Strips




2. EKG Strip EKG Strip




3. Determine EKG 1st step -----------------------------------------Count the QRS complexes
over a 6 second
---- Multiple by 10 to determine
HR. so this is 7 x 10=70



4. Determine EKG 2nd step -------------------------------------- Count the small boxes for R-R
interval.
--- Divide this number into 1500
to determine heart rate.




5. P wave ---0.06-0.11 seconds
--- atria are contracting, pumping
blood into the ventricles.




, ekg test UPDATED ACTUAL Questions and CORRECT
Answers




6. PR ---0.12 to 0.20 seconds
--interval indicates the transit
time for the electrical signal to
travel from the sinus node to the
ventricles.




7. PR < 0.20 seconds or one big box.
--- If measurement is longer than
0.20 seconds (or one big box) it is
defined as a 1st Degree AV Block




8. QRS wave ----0.06 to 0.12 seconds
----is ventricular depolarization
and contraction.
--- If it is > than this, it is
termed a Bundle Branch Block.





, ekg test UPDATED ACTUAL Questions and CORRECT
Answers




9. T wave




10. U-wave is a small upright, rounded
bump. When observed, it follows
the T-wave.




11. QRS complex --- to the end of the T wave.
---Normally, the QT interval is
0.36 to 0.44 seconds (9-11 box-
es).




12. j point ----------------------------------------------------------------- The point where the S and the
T wave join is the J point and is