ch 29 cardiac disorders Flashcards
svt
adenosine can be admistered or beta blockers,ccb
-greater than 100
figure 29.18
symptmatic-hypotension, dizziness,lightheadness,sob,anxiety,palpitations
normal sinus rhythm
wave form from sa node
-pwave
-qrs complex
-t wave
60-100bpm
Cardiac symptoms
palpitations
hypotension
diaphoresis
sob
syncope
dizziness
weakness
anxiety
the best lead to identify or interpret the heart rhythm is?
lead 2-it mimics the heart’s natural electrical direction
Even though t wave is not used for rhythm interpretation it can be helpful in monitoring?
electrolyte imbalances, hypokalemia, hyperkalemia,
u wave is seen when there is
digoxin toxicity, hypokalemia
Ventricular Tachycardia
Three or more P V C’s in a row
- no p wave look like ghost
-qrs wide greater than150bpm
Sinus bradycardia
regular rhythm
-Hr less than 60bpm
-can occur during sleep
-well trained athletes
If symptomatic-chest pain, sob, sweating while bradycardia
treatment-atropine 0.5mg IV push
sinus tachycardia
regular rhythm -Hr is more than 100
causes fever,anemia ,hypovolemia,hypotension pe ,mi
treatment could be iv and rbc or beta blockers to slow hr
only two dysrhythmias can shock
v fib and pulseless vt
Amiodarone can be administered for?
VT,VF,AF
Epinephrine can be administered for?
VT,VF Asystole
Diltiazem can be administered for?
AF
lead placement
RA-right forearm or wrist
LA-left forearm or wrist
V-4th intercostal space right sternal edge
RL-right lower leg
LL-left lower leg
ventricular fibrilation
lethal dysrhythmia
mostly seen in cardiac arrest
multiple chaotic impulses
What is meant by the term “controlled” atrial fibrillation?
The overall ventricular rate is less than 100 beats/min
What is meant by the term “uncontrolled” atrial fibrillation?
The overall ventricular rate is greater than 100 beats/min.
