Term
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Definition
Normal sinus
HR 60-100
QRS regular
P waves regular, uniform and precede every QRS
PR interval is .12 to .20 seconds
QRS interval is less than .12 sec
Causes: normal heart
Treatment: none needed |
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Term
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Definition
HR less than 60
QRS regular
P waves regular, uniform and precede QRS
PR interval and QRS interval within normal limits
Causes: disease in SA node,hypothermia, hypoxia, acute inferior MI, vomiting, carotid sinus massage, athletes, and digitalis or propanolol
Treatment: If symptomatic-Atropine
If severe (HR35-45)treat with Atropine, Epinephrine and then Dopamine. (TC pacemaker if refractory or recurrent) |
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Term
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Definition
HR 100-180
QRS regular
p waves regular, uniform, precedes QRS
PR interval and QRS interval within normal limits
Causes: Exercise and exertion, ingestion of stimulants, and pain, stress,or fever
Treatment:treat underlying cause (adivan, tylenol,pain meds) |
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Term
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Definition
HR 220-430(atria) 150 (ventricle)
rhythm regular or variable
PR interval not visible
QRS less than .12 sec
Causes:Heart disease, mitral or tricuspid disease, cardiomyopathy, digitalis toxicity, hypoxia, CHF, pericarditis, reduction in cardiac output, or post op
Treatment: Digitalis (if not dig OD)or Cardioversion if symptomatic(lightheaded,hypertensive, sweaty, or clammy) |
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Term
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Definition
HR irregular
QRS irregular
P waves unable to determine
PR interval and QRS interval variable
Atrial rhythm irregular
Ventricular rate irregular
Treatment: Cardioversion if symptomatic or Digitalis if not Dig OD. All these pt need to be on anticoagulants. |
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Term
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Definition
HR 160-240
QRS regular
P wave often absent or buried in QRS
PR interval less than .12 sec
QRS interval normal
Can include sinus tach, atrial tach, Aflutter, Afib, and junctional tach.
Causes: Idiopathic, alcohol, tobacco, caffeine, electrolyte inbalance, acid base imbalance, emotional stress
Treatment:if stable-vagal maneuvers(Amiodarone, carotid massage), Adenoside, Verapamil, Cardioversion.
If unstable-Cardioversion or TC pacemaker. |
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Term
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Definition
HR need to check manually, since some contractions aren't perfused
QRS underlying rhythm regular
P waves may or may not be present before PVC
PR interval and QRS interval complexes regular in underlying rhythm
Unifocal- all are one shape
Multifocal- more than 1 shape
Causes: Alcohol, Caffeine, Hypoxia, Stress, and Drugs.
Treatment: Do nothing mostly but if frequent give Amiodarone or Procainamide. |
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Term
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Definition
HR 150-250
QRS complex greater than .12 sec, regular or slightly irregular
PR interval may not be measureable
QRS interval may or may not be measureable
Wide bizarre complexes
Causes: MI,cardiomyopathy, antidepressant OD, digitalis toxicity, decreased potassium, cocaine use, or post op CABG
Treatment:if stable-give O2, Amiodarone and Procainamide. If unstable-Cardiovert. If no pulse, defib, CPR, intubate, and Epinephrine |
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Term
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Definition
HR undertermined
QRS can't identify because its chaotic
P waves can't identify
PR interval and QRS interval can't be determined
Causes: hypoxia, surgery, electrolyte imbalance, CAD, MI, or cardiac arrest.
Treatment:Defib, intubate and check ABC's |
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Term
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Definition
HR none
QRS none
P waves none
PR interval none
Treatment: CPR to get back into rhythm (not defib and make sure leads are on correctly before starting CPR)and give Epinephrine or Vasopressin |
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Term
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Definition
HR normal
QRS normal
P waves present(P wave, delay, QRS)
PR interval greater than .20 sec
QRS interval normal
Treatment: monitor pt |
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Term
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Definition
Type 1 Wenckeback: PR interval longer than Pwave with no QRS
Causes: Inferior MI, block in bundle of His-Purkinjii network
Treatment: monitor pt
Type II: Mobitz
QRS suddenly missing
Slow rate
PR interval unchanged
Treatment: TC pacer |
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Term
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Definition
HR 40-60
P wave not with QRS complexes
QRS complex normal or wide
PR interval not measureable
Independent beating of atria and ventricle
Causes: Transient, MI anterioseptal, myocarditis, digitalis toxicity, and electrolyte imbalance
Treatment: Pacemaker |
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