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
