ERSC 1P94 PROFESSIONAL RESPONSE PREP QUESTIONS AND ACCURATE ANSWERS GRADED A+

ERSC 1P94 PROFESSIONAL RESPONSE
PREP QUESTIONS AND ACCURATE
ANSWERS GRADED A+

●● Myocardial Infraction (MI)
Answer: Heart Attack


-Have abnormal rhythms.
-Death of cardiac muscle due to ischemia


●● Doe the ECG machine monitor or control the hearts rhythm?
Answer: Only monitors


●● Straight line when machine is turned on but not connected to the
patient
Answer: Isoelectric = no current


It is straight because there is a balanced electrical force field. This
Isoelectric line acts as a starting point for the patterns to be displayed


●● ECG Pattern

,Answer: Upward Pattern: electricity flowing from the heart to the
electrodes moving to the positive electrode


Downward Pattern: electricity flowing from the heart to the electrodes
moving away from the positive electrode


●● Where should you put electrodes ?
Answer: 1. Close to bone
2. Over soft tissue


●● Where should you NOT put electrodes
Answer: 1. Thick muscles
2. Skin Folds
3. Bony prominence's


they can cause ECG artifacts that take away from the reading


●● Leads
Answer: recordings of heart activity from several angles around the
heart
(like adjusting the view for your camera)


●● Lead 1

, Answer: right arm (-) to left arm (+)


-positive deflection of ECG tracings
-helpful in monitoring atrial rhythms and hemi blocks


●● Lead 11
Answer: right arm (-) to below the last left palpable rib, below the
midclavicular line(+)


-primary lead
-also positive deflection
-current travels down and to the left following normal condition system
of the heart
-info about inferior portion of the heart
-useful for detecting sinus node (SA) and atrial arrhythmias


●● Lead 111
Answer: left arm (-) left leg (+)


-also positive deflection
-also detects changes associated with an inferior wall myocardial
infraction