Ventricular Rhythms Flashcards Preview

Nursing 230 Exam # 3 > Ventricular Rhythms > Flashcards

Flashcards in Ventricular Rhythms Deck (15)
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What are the 5 Ventricular Rhythms discussed in Walraven and what do all 5 have in common?

1) Premature Ventricular Complex (PVC)
2) Ventricular Tachycardia
3) Ventricular Fibrillation
4) Idioventricular Rhythm
5) Asystole
*All 5 have QRS complexes greater 0.12 secs


What is the rate of V-Tach?

150 to 250 bpm


Describe an Idioventricular Arrhythmia.

A rhythm initiated by the ventricles in the absence of a stimulus from a higher focus. It has an intrinsic rate of 20-40 bpm and is usually regular.


What a the 5 mentioned causes of PVCs?

1) Damage to ventricles (MI)
2) Hypoxemia
3) Acidosis
4) Hypokalemia or Hypomagnesemia
5) Meds (i.e., digoxin, catecholamines, and stimulants)


In which 6 instances should PVCs be treated medically?

1) Greater than 6 PVCs per minute
2) Bigemny/Trigeminy
3) Coupled or runs/bursts of VT
4) Multifocal PVCs
5) Chest pain with PVCs
6) R on T phenomenon


What are the 6 drugs used to treat PVCs?

1) Oxygen
2) Procainamide
3) Lidocaine IV
4) Amiodarone IV
5) Quinidine
6) Sodium Bicarbonate


What are the 6 main SxS of V-Tach experienced by the patient as a result of ⬇ cardiac output?

1) Anxiety
2) Angina
3) Shock
4) Siezures
5) Cyanosis
6) ⬇ LOC


What is a Holter/24 hr monitor?

A mobile EKG worn by a patient experiencing symptomatic V-Tach. The patient usually keeps a diary of their activities while wearing the monitor.


What are the 5 mentioned treatments for V-Tach?

1) CPR if Pulseless
2) Automatic Inplantable Cardioverter/Defibrillator (AICD)
3) Meds (OPLAQS)
4) Precordial thump
5) Cardioversion/Defibrillation


When would you use Cardioversion Vs Defibrillation on a patient with V-Tach?

Cardioversion - If the patient has a pulse
Defribillation - If the patient does not have a pulse


What is Torsades de Pointe? What is the Tx for it?

Torsades de Pointe is multifocal V-Tach that isn't V-Fib (V tach with multiform QRS waves). The Tx is Magnesium IV.


What are the 6 mentioned causes of V-Fib?

1) MI
2) Hypoxemia
3) Electrolyte Imbalance
4) Electric Shock
5) Meds
6) ⬆ Vagal Stimulation


What are the 7 mentioned causes of Asystole?

1) Vagal stimulation
2) MI
3) Hypoxia
4) Hypokalemia or Hyperkalemia
5) Pre-existing Acidosis
6) Drug overdose
7) Hypothermia


Describe an Accelerated Idioventricular Rhythm.

An Idioventricular rhythm with a rate of 60-120 bpm.


What is Ventricular Standstill? What is its clinical significance and what are the causes?

1) Ventricular standstill is the absence of any ventricular activity for more than a few seconds. P waves may be present.
2) Clinical Significance - Patient becomes pulseless and apneic if standstill persists, leading to asystole.
3) Causes - Hypoxemia, hyper or hypokalemia, drug overdose, MI, hypothermia, or ventricular rupture.