ICU EXAM STUDY GUIDE| TOP SCORES MADE SIMPLE | TRUSTED TEST SOLUTIONS! QUALITY CONTENT YOU CAN RELY ON!

ICU EXAM STUDY GUIDE| TOP SCORES MADE SIMPLE |
TRUSTED TEST SOLUTIONS!
QUALITY CONTENT YOU CAN RELY ON!
Normal PR interval Answer: 0.12-0.20 seconds
Normal QRS duration Answer: Less than 0.12 seconds
Normal QT interval Answer: Less than 0.44 seconds in men and less than 0.46 seconds in
women
Normal cardiac conduction pathway Answer: SA node → AV node → Bundle of His → bundle
branches → Purkinje fibers
What does the P wave represent? Answer: Atrial depolarization
What does the QRS complex represent? Answer: Ventricular depolarization
What does the T wave represent? Answer: Ventricular repolarization
First-line medication for PEA or asystole Answer: Epinephrine
First-line medication for SVT Answer: Adenosine
First-line treatment for ventricular fibrillation Answer: Defibrillation plus epinephrine and
amiodarone
First-line medication for Torsades de Pointes Answer: Magnesium sulfate
First-line medication for symptomatic bradycardia Answer: Atropine
Difference between defibrillation and cardioversion Answer: Defibrillation is
unsynchronized for pulseless rhythms; cardioversion is synchronized for patients with a
pulse
What are the two shockable rhythms? Answer: Ventricular fibrillation and pulseless
ventricular tachycardia
Initial ACS interventions Answer: MONA: Morphine, Oxygen, Nitroglycerin, Aspirin
Effect of pain and anxiety on vital signs Answer: Increased heart rate, blood pressure,
respiratory rate, and oxygen consumption
Hemodynamic compensatory mechanisms in shock Answer: Tachycardia,
vasoconstriction, RAAS activation, ADH release



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