NSG 320- Exam 1 (Part 2) Questions With Complete
Solutions
Electrocardiogram (ECG)
A graphic recording of the electrical activity of the heart
What diagnosis can an ECG conform?
dysrhythmias, chamber enlargement, myocardial infarction,
injury; monitors effects of electrolyte imbalances or medication
administration
Sinus Bradycardia
more than 6 large squares between QRS complexes indicate a
pulse < 50 bpm
Sinus Tacycardia
QRS complex is close together; less than 3 large squares
between the QRS complexes indicates a rate > 100 bpm
Narrow Complex Tachycardia
, p waves may or may not be visible but QRS complex is narrow;
rate typically over 120 bpm
Broad Complex Tachycardia
p waves are not visible with a wide QRS complex; rate typically
over 120 bpm
Atrial Flutter
several p waves before each QRS complex with a sawtooth
pattern; may be asymptomatic or may lead to stroke, dizziness,
fainting, SOB, fatigue, flutter in chest
Atrial Fibrillation
disorganization of electrical activation of atrial cells; irregular
conduction to ventricles; no p wave, narrow QRS complex
Solutions
Electrocardiogram (ECG)
A graphic recording of the electrical activity of the heart
What diagnosis can an ECG conform?
dysrhythmias, chamber enlargement, myocardial infarction,
injury; monitors effects of electrolyte imbalances or medication
administration
Sinus Bradycardia
more than 6 large squares between QRS complexes indicate a
pulse < 50 bpm
Sinus Tacycardia
QRS complex is close together; less than 3 large squares
between the QRS complexes indicates a rate > 100 bpm
Narrow Complex Tachycardia
, p waves may or may not be visible but QRS complex is narrow;
rate typically over 120 bpm
Broad Complex Tachycardia
p waves are not visible with a wide QRS complex; rate typically
over 120 bpm
Atrial Flutter
several p waves before each QRS complex with a sawtooth
pattern; may be asymptomatic or may lead to stroke, dizziness,
fainting, SOB, fatigue, flutter in chest
Atrial Fibrillation
disorganization of electrical activation of atrial cells; irregular
conduction to ventricles; no p wave, narrow QRS complex
