EKG EXAM 2 WITH COIRRECT ANSWERS 2025

EKG EXAM 2 WITH COIRRECT
ANSWERS 2025


Know what the term 'sinus' indicates about an EKG ( correct answers )
rhythm it is occurring from the SA node That

Be able to determine all of these things on EKG strips for normal sinus
rhythm
( correct answers ) Rhythm is regular = same distance between all R
waves

1:1 P to QRS

ratio HR 60-

99 bpm

Normal PR intervals and QRS complexes (positive in lead II,

Sinus Bradycardia:
negative Know the
in aVR) Normal axistwo ( correct
deviation answers )
is indicated Nonsymptomatic
types bpm 50-59
Patient should be asymptomatic
Symptomatic: 30-50 bpm

Sinus Bradycardia: Know the causes ( correct answers ) Medication
beta-blocker, sick sinus syndrome, inferior wall MI

Sinus Bradycardia: Know the treatment ( correct answers ) Atropine,
pacemaker

Know what defines an EKG rhythm as 'Sinus Tachycardia' ( correct
answers ) HR > 100

Sinus Tachycardia: Know the causes ( correct answers ) Caffeine,
cocaine, stress

Sinus Tachycardia: Know the treatment ( correct answers )
Removing the underlying cause

Sinus Arrhythmia EKG( correct answers ) R-R irregular

Sinus Arrhythmia causes ( correct answers ) exaggerated
respiration post exercise
GRADED
A+

, Know what defines an EKG rhythm as either 'Sinus Block, 'Sinus
Pause' or 'Sinus Arrest' ( correct answers ) Impaired conduction from
SA node to atria, then ventricles

Sinus Block ( correct answers ) multiples of 2 R-R interval

Sinus Pause ( correct answers ) shorter or longer than direct
multiple of 2 R-R

Sinus Arrest ( correct answers ) R-R interval measurement is > plus or
minus 2 small boxes. Not a multiple of the P-P interval. Longer than a
pause

Sinus Block, 'Sinus Pause' or 'Sinus Arrest causes ( correct answers )
Ischemic disease of SA node

Sinus Block, 'Sinus Pause' or 'Sinus Arrest treatment ( correct answers )
Atropine, pacemaker

Know what defines asystole, what it indicates about an individual, and how
it should be treated ( correct answers ) No electrical activity,
Commence CPR & IV every 3-5 mins

RAE apparance ( correct answers ) tall, symmetrically peaked P waves
in lead II, Biphasic P wave in V1

RAE causes ( correct answers ) COPD

RAE treatment ( correct answers ) Several pharmacologic interventions

LAE appearance ( correct answers ) Wide, notched, prolonged P wave
in lead 2, biphasic P wave in V1

LAE causes ( correct answers ) chronic

hypertension LAE treatment ( correct answers )

BP medications

RVH appearance ( correct answers ) Tall R waves in V1 and V2 ≥ 7
mm, Deep S waves in lateral precordial/chest leads

RVH causes ( correct answers ) COPD

RVH treatment ( correct answers ) relieve symptoms of respiratory
distress
GRADED
A+