Rhythms And TX Flashcards
Unstable V-tach
CAB check pulse always.
CPR, Defibrillate, Epi. Amiodorone
A-flutter
BB, CCB, SC, amiodorone
*single ectopic beat.
Saw tooth
A-Fib
BB, CCB, Dig!, SC, coags.
*multiple ectopic beats
V-Fib
CPR, defibrillate,epi
Stable V-tach
CAB, VS, Amiodorone, procaindamide,
Asystole
CPR, ACLS, epi, atropine, intubate.
NO Defibrillate!
PEA
Fix underlying problem.
CPR, epi
PVC’s
Treat cause- O2, lytes?
BB, amiodarone, lidocaine, procainamide.
2 PVC’s in a row =
Couplet
Ventricular bigeminy=
Every other beat is a PVC
Ventricular trigeminy=
Every 3rd beat is a PVC
What is the TX for a third degree heart block?
Pacemaker,
Epi
Dopamine
Atropine
Complete heart block, no conduction from A to V
R - T phenomenon may lead to what?
V-fib
What is conduction for SA - AV node showing?
Atrial depolarization or contraction.
PR interval
What does the AV - BOH - purkinje fibers showing?
Ventricular depolarization.
QRS
How many seconds is a small box?
0.04
1mm
How many seconds is a big box?
0.2
5mm
How many seconds in the PR?
0.12- 0.2
How many seconds for the QRS?
< 0.12
How many seconds for the QT?
0.34 - 0.43
What does the ST segment represent?
Time between ventricular depolarization and repolarization
What does an elevated or depressed ST represent?
Ischemia, infarct, injury
S/S of sinus brady?
Pale/cool skin,
SOB, fatigue
Dizzy, syncope, decreased LOC
Angina
TX for sinus tach?
BB, CCB, vagal maneuvers
Which patient is more likely to develop a thrombus, A-flutter or Fib?
A-Fib
Can heart withstand V-fib?
What will it lead to?
No.
Asystole.
What criteria need to be meet in order for rhythm to be considered NSR?
HR 60-100
PR- 0.12-0.2
QRS- < 0.12
QT- 0.34-0.43
What does ectopic mean?
Irritability
What are normal causes of sinus tach?
And their treatments?
Exercise- stop
fever- antipyretic
pain- analgesics
hypovolemia- IVF
What are bad causes of sinus tach?
MI
HF
Give BB
S/S of sinus tach?
Decreased CO which will lead to - hypo, dizzy, angina
If pt is in A flutter, will you see a normal P wave?
No, it will be sawtooth instead.
*single ectopic foci!
What is the most common dysrhythmia?
A-fib.
*multi ectopic.
Fib-dig
What does 3 or more PVC’s in a row represent?
V tach
What does torsades de pointe stand for?
What does is look like?
What is usually the cause?
Twisting around a point
V tach that goes from bigger to smaller.
Hypo-magnesia
What is monophasic defibrillate?
How many Jules?
Shock goes one direction.
360 Jules
What is biphasic defibrillate?
How many Jules?
Shock goes in both directions.
120-200 Jules
If a pt has a pacemaker, can they have an MRI?
Security wand?
Metal detector?
No MRI
No wand
Ok for metal detector, must walk right through.
After a pt has a ICD or pacemaker implanted, should they have sex/drive?
Wear a sling?
Sex/ drive cannot be done until MD gives ok.
Pt should wear a sling post op. On the side of the pacer. This is to avoid displacing wires.