Review Questions and
Answers 100% Pass Graded A+
David Mungai [Date] [Course title]
, Med Surg Advance EKG Exam Review
Questions and Answers 100% Pass
Graded A+
the pr interval wave indicates what ? - Answer>> it depicts
conduction of the impulse from the SA node thorugh the
internodal pathway to the AV node and to the ventricles.
when does the ST interval begin and end? - Answer>> it begins
at the end of the QRS complex and ends at the start of the T
wave.
What can happen during the downward stroke of the T wave that
can be life threatening? What is the phenomenon called? -
Answer>> an abnormal pulse that triggers prematurely on the
downward stroke can develop a life threatening dysrhythmia
(Vtach, Vfib) sometimes called R on T phenomenon
A pt suffering an MI changes the appearance of the T wave how?
- Answer>> It can make it look flattened or inverted.
what does the T wave look like when a pt suffering from
hyperkalemia? - Answer>> The T wave can look tall or peaked
What does the ST segment look like when there is and MI? When
there is myocardial injury (no idea why there's a difference) -
Answer>> During an MI it looks depressed.
During myocardial injury, it is elevated.
All lead should be looked at when reading and EKG strip,
however, which lead is the most favored? - Answer>> Lead II
How long should the QRS interval be? - Answer>> no longer
than 0.12 sec duration, 3 small squares