Critical Care HESI Review
EKGs & Other Heart Crap
• Vasopressin- vasoconstriction
o Pulseless arrest
• Dopamine (Catecholamine)- inc U/O
o Beta- inc HR & contractility
▪ AV blocks, bradycardia
o Alpha- inc BP & vasoconstriction
▪ Cardiac arrest, shock
• Epinephrine (Catecholamine)- inc HR, arterial vasoconstriction, bronchodilation (stimulates A and B receptors)
o V fib, pulseless V tach, asystole PEA, cardiac arrest
• Atropine (Anti-cholinergic)- inc HR (blocks parasymp stimulation)
o Symptomatic bradycardia, AV blocks
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, Failure to Capture
• Causes: Lead maturation, dislodgement, or perforation; Poor/Incompatible connection at connector block; Circuit Failure;
Impending battery depletion
Failure to Sense
• Causes: Improper lead position; Improper programming; Lead dislodgement; Magnet application
Failure to Fire
• Cause: usually battery problem
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EKGs & Other Heart Crap
• Vasopressin- vasoconstriction
o Pulseless arrest
• Dopamine (Catecholamine)- inc U/O
o Beta- inc HR & contractility
▪ AV blocks, bradycardia
o Alpha- inc BP & vasoconstriction
▪ Cardiac arrest, shock
• Epinephrine (Catecholamine)- inc HR, arterial vasoconstriction, bronchodilation (stimulates A and B receptors)
o V fib, pulseless V tach, asystole PEA, cardiac arrest
• Atropine (Anti-cholinergic)- inc HR (blocks parasymp stimulation)
o Symptomatic bradycardia, AV blocks
Page 1 of 70
,Page 2 of 70
,Page 3 of 70
, Failure to Capture
• Causes: Lead maturation, dislodgement, or perforation; Poor/Incompatible connection at connector block; Circuit Failure;
Impending battery depletion
Failure to Sense
• Causes: Improper lead position; Improper programming; Lead dislodgement; Magnet application
Failure to Fire
• Cause: usually battery problem
Page 4 of 70
