2/9/25, 4:55 PM Relias Assessments Assistance Material DYSRHYTHMIAS 2025|Complete Exam Test |Recently Testing Real Exam Questions|…
Relias Assessments Assistance Material
DYSRHYTHMIAS 2025|Complete Exam Test
|Recently Testing Real Exam Questions|Verified
Solutions (100% correct)
Save
Terms in this set (21)
One of the most useful and commonly used
diagnostic tools is electrocardiography (EKG) which
measures the heart's electrical activity as
waveforms. An EKG uses electrodes attached to the
skin to detect electric current moving through the
heart. These signals are transmitted to produce a
EKG interpretation record of cardiac activity. Arrhythmia or dysrhythmia
are disturbances in the normal cardiac rhythm of the
heart which occurs as a result of alterations within
the conduction of electrical impulses. These
impulses stimulate and coordinate atrial and
ventricular myocardial contractions that provide
cardiac output.
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, 2/9/25, 4:55 PM Relias Assessments Assistance Material DYSRHYTHMIAS 2025|Complete Exam Test |Recently Testing Real Exam Questions|…
Sinus tachycardia is a heart rate greater than 100
beats per minute that originated from the sinus
node.
Rate: 100 to 180 beats per minute
P Waves precede each QRS complex
PR interval is normal
QRS complex is normal
Conduction is normal
Sinus Tachycardia
Rhythm is regular
Causes of sinus tachycardia may include exercise,
anxiety, fever, drugs, anemia, heart failure,
hypovolemia and shock. Sinus tachycardia is often
asymptomatic. Management however is directed at
the treatment of the primary cause. Carotid sinus
pressure (carotid massage) or a beta blocker may
be used to reduce heart rate.
Sinus bradycardia is a heart rate less than 60 beats
per minute and originates from the sinus node (as
the term "sinus" refers to sinoatrial node). It has the
following characteristics
Rate is less than 60 beats per minute
P Waves precede each QRS complex
PR interval is normal
QRS complex is normal
Conduction is normal
Sinus Bradycardia Rhythm is regular
Causes may include drugs, vagal stimulation,
hypoendocrine states, hypothermia, or sinus node
involvement in MI. This arrhythmia may be normal in
athletes as they have quality stroke volume. It is
often asymptomatic but manifestations may include:
syncope, fatigue, dizziness. Management includes
treating the underlying cause and administering
anticholinergic drugs like atropine sulfate as
prescribed.
https://quizlet.com/1003498366/relias-assessments-assistance-material-dysrhythmias-2025complete-exam-test-recently-testing-real-exam-questi… 2/9
Relias Assessments Assistance Material
DYSRHYTHMIAS 2025|Complete Exam Test
|Recently Testing Real Exam Questions|Verified
Solutions (100% correct)
Save
Terms in this set (21)
One of the most useful and commonly used
diagnostic tools is electrocardiography (EKG) which
measures the heart's electrical activity as
waveforms. An EKG uses electrodes attached to the
skin to detect electric current moving through the
heart. These signals are transmitted to produce a
EKG interpretation record of cardiac activity. Arrhythmia or dysrhythmia
are disturbances in the normal cardiac rhythm of the
heart which occurs as a result of alterations within
the conduction of electrical impulses. These
impulses stimulate and coordinate atrial and
ventricular myocardial contractions that provide
cardiac output.
https://quizlet.com/1003498366/relias-assessments-assistance-material-dysrhythmias-2025complete-exam-test-recently-testing-real-exam-questi… 1/9
, 2/9/25, 4:55 PM Relias Assessments Assistance Material DYSRHYTHMIAS 2025|Complete Exam Test |Recently Testing Real Exam Questions|…
Sinus tachycardia is a heart rate greater than 100
beats per minute that originated from the sinus
node.
Rate: 100 to 180 beats per minute
P Waves precede each QRS complex
PR interval is normal
QRS complex is normal
Conduction is normal
Sinus Tachycardia
Rhythm is regular
Causes of sinus tachycardia may include exercise,
anxiety, fever, drugs, anemia, heart failure,
hypovolemia and shock. Sinus tachycardia is often
asymptomatic. Management however is directed at
the treatment of the primary cause. Carotid sinus
pressure (carotid massage) or a beta blocker may
be used to reduce heart rate.
Sinus bradycardia is a heart rate less than 60 beats
per minute and originates from the sinus node (as
the term "sinus" refers to sinoatrial node). It has the
following characteristics
Rate is less than 60 beats per minute
P Waves precede each QRS complex
PR interval is normal
QRS complex is normal
Conduction is normal
Sinus Bradycardia Rhythm is regular
Causes may include drugs, vagal stimulation,
hypoendocrine states, hypothermia, or sinus node
involvement in MI. This arrhythmia may be normal in
athletes as they have quality stroke volume. It is
often asymptomatic but manifestations may include:
syncope, fatigue, dizziness. Management includes
treating the underlying cause and administering
anticholinergic drugs like atropine sulfate as
prescribed.
https://quizlet.com/1003498366/relias-assessments-assistance-material-dysrhythmias-2025complete-exam-test-recently-testing-real-exam-questi… 2/9
