Cardiac Dysrhythmias Part 2 Verified Solutions
First-degree heart block is characterized by a prolonged PR interval of more than 0.20 seconds on an
EKG. Patients typically do not experience symptoms with this condition.
Causes of first-degree heart block include myocardial infarction (MI), coronary artery disease (CAD),
rheumatic fever, hyperthyroidism, electrolyte imbalances, vagal stimulation, and certain medications
such as digitalis, beta-blockers, calcium channel blockers, and flecainide.
Treatment for first-degree heart block generally involves monitoring the patient for any changes in their
condition rather than active intervention.
Second-degree heart block Type 1, also known as Mobitz Type 1 or Wenckebach, is characterized by a
progressively lengthening PR interval until a QRS complex is dropped. This pattern repeats cyclically.
Causes of second-degree heart block Type 1 include medications like digitalis and beta-blockers, recent
heart attacks (MI), CAD, and other cardiac conditions.
Treatment for second-degree heart block Type 1 may involve administering atropine to increase heart
rate temporarily. In cases where the patient has had a recent MI, temporary pacemaker insertion may
be necessary.
, Patient education for second-degree heart block Type 1 includes awareness of symptoms such as
fatigue, shortness of breath, dizziness, confusion, and decreased cardiac output. Patients may be
asymptomatic initially, and the condition can progress to higher degrees of heart block.
If you have more questions or need further information, feel free to ask!
2nd heart block type II characteristics ✅-PR interval constant but QRS complex drop every 2nd, 3rd, or
4th beat or vary
2nd heart block type II causes ✅- rheumatic heart disease
-CAD
-anterior MI
-drug toxicity (Prodysrythmias)
2nd heart block type II treatment ✅-temp pacemaker, or permanent pacemaker if pt. symptomatic
(hypotension, angina)
2nd heart block type II pt teaching ✅2:1 block worse then a 4:1 block.
-pt symptomatic due to decreased HR
-may progress to 3rd
First-degree heart block is characterized by a prolonged PR interval of more than 0.20 seconds on an
EKG. Patients typically do not experience symptoms with this condition.
Causes of first-degree heart block include myocardial infarction (MI), coronary artery disease (CAD),
rheumatic fever, hyperthyroidism, electrolyte imbalances, vagal stimulation, and certain medications
such as digitalis, beta-blockers, calcium channel blockers, and flecainide.
Treatment for first-degree heart block generally involves monitoring the patient for any changes in their
condition rather than active intervention.
Second-degree heart block Type 1, also known as Mobitz Type 1 or Wenckebach, is characterized by a
progressively lengthening PR interval until a QRS complex is dropped. This pattern repeats cyclically.
Causes of second-degree heart block Type 1 include medications like digitalis and beta-blockers, recent
heart attacks (MI), CAD, and other cardiac conditions.
Treatment for second-degree heart block Type 1 may involve administering atropine to increase heart
rate temporarily. In cases where the patient has had a recent MI, temporary pacemaker insertion may
be necessary.
, Patient education for second-degree heart block Type 1 includes awareness of symptoms such as
fatigue, shortness of breath, dizziness, confusion, and decreased cardiac output. Patients may be
asymptomatic initially, and the condition can progress to higher degrees of heart block.
If you have more questions or need further information, feel free to ask!
2nd heart block type II characteristics ✅-PR interval constant but QRS complex drop every 2nd, 3rd, or
4th beat or vary
2nd heart block type II causes ✅- rheumatic heart disease
-CAD
-anterior MI
-drug toxicity (Prodysrythmias)
2nd heart block type II treatment ✅-temp pacemaker, or permanent pacemaker if pt. symptomatic
(hypotension, angina)
2nd heart block type II pt teaching ✅2:1 block worse then a 4:1 block.
-pt symptomatic due to decreased HR
-may progress to 3rd
