Cardiac Dysrythmias Flashcards
P of PQRST complex
Atrial Depolarization
QRS of PQRST complex
Ventricular Depolarization
T of PQRST complex
Ventricular Repolarization
Normal HR range?
60 - 100 BPM
S/S Sinus Bradycardia
- Decreased C/O
- Pale, cool skin
- hypotension
- weakness
- angina dizziness
- syncope
- confusion
- SOB
Treatment of Sinus Bradycardia
- Atropine
- Pacemaker
- Adjust or hold medications
Sinus Bradycardia Can occur with?
- Carotid massage
- Valsalva maneuver
- Administration of medications (B-blockers, ACE)
A patient’s cardiac rhythm is sinus bradycardia with a heart rate of 34 beats/minute. If the bradycardia is symptomatic, the nurse would expect the patient to exhibit? A) Palpitations. B) Hypertension. C) Warm, flushed skin. D) Shortness of breath
Ans: D
Sinus Tachycardia can occur with:
- Exercise
- fever
- pain
- hypotension
- hypovolemia
- anemia
- hypoxia
- MI
- HF
- administration of meds (Atropine, Epinephrine, Sudafed, Theophylline)
S/S of Sinus Tachycardia
- Decreased C/O
- dizziness
- dyspnea
- hypotension
- Can present as CP, or cause an MI
Treatment of Sinus Tachycardia
- Treat cause
- vagal maneuvers
- beta blockers
- calcium channel blockers
- Saw toothed flutter waves
- Atrial rate 200-350 bpm
- Ventricular rate approx. 150 bpm but can vary with conduction ratio
Atrial Flutter
Atrial Flutter Atrial rate
200-350 bpm
Atrial Flutter Ventricular rate
approx. 150 bpm but can vary with conduction ratio
Tx of choice for Sinus Tachycardia?
B-Blockers
Treatment of Atrial Flutter?
- B Blockers
- antidysrhythmics,
- Catheter ablation (treatment of choice)
- Cardioversion if hemodynamically stable
- Long term use of Coumadin if Aflutter continues
Tx of choice for Atrial Flutter?
Catheter ablation
Catheter ablation
Catheter is inserted into the right atrium between the inferior vena cava and tricuspid valve, electrical energy is used destroy the part of the heart causing the dysrythmia?
Cardioversion
external shock is applied (similar to CPR) to jolt pt back into a NSR
Atrial flutter tx is catheter ablation and cardionversion fail?
long term coumadin