Exam 2 Flashcards
what is the basic effect of beta blockers?
blocks the fight or flight response and lowers BP
patient may be allergic to the contrast medium used in cardiac catheterizations if they are also allergic to…?
iodine and shellfish
How must a client act during a resting electrocardiography?
must lie as still as possible during procedure
what is significant ST-segment depression associated with?
myocardial ischemia
what is the purpose for carrying out and echocardiography?
to assess the structure and function of the heart
normal pressure for pulmonary artery
15-26 mm Hg
what position will the patient be in during a pulmonary artery wedge pressure?
supine, with the head elevated to 45 degrees
nursing measures to take for a patient with renal insufficiency who is scheduled for a cardiac catherization
admin IV fluids assess for allergies assess lab results assess and mark pulses consent form
symptoms that indicate a female patient for an electrocardiogram?
fatigue despite adequate rest indigestion abdominal fullness SOB feeling of choking
which assessment findings in the first few hour s after a coronary catheterization require immediate action?
serum potassium
expanding groin hematoma
rhythm changes
where does the p wave originate from?
the ectopic focus
what does the P wave represent?
depolarization of the atrias
normal PR interval range
0.12 to 2.0
what is the next appropriate measure to take when a patient has a prominent U wave ?
review the clients daily electrolyte results
what should the nurse do when the patient’s HR increases during inspiration?
document findings
what medication should be administered with the patient has sinus bradycardia, hypotension, and dizziness?
atropine
medication for supraventricular tachycardia
diltiazem
what condition does CABG surgery put the patient at risk for?
atrial fibrillation
which heart rhythm has a saw tooth pattern on ECG?
atrial flutter
what physical assessment finding is expected with atrial flutter?
SOB and anxiety
what medication is given to patients with chronic a-fib to prevent emboli?
warfarin
in a patient with acute MI what can an onset of PVCs indicate?
ventricular tachycardia or v-fib
what medication is a good choice for frequent PVCs?
amiodarone
how do patients ususally respond to adenosine?
with a short period of: asystole bradycardia hypotension dyspnea, chest pain
what does a prolonged PR interval indicate?
first-degree heart block
what equipment is needed when performing a carotid sinus massage?
resuscitation cart
what is the priority intervention with a client with complete heart block (third-degree)?
begin external pacing
on a ECG what does a spike followed by a QRS complex indicate?
that is has successfully depolarized or captured the ventricle
What is the ECG interpretation if there is a pacing spike but no QRS complex?
loss of capture
what sounds are a manifestation of cardiac tamponade?
muffled heart sounds
normal ejection fracture
50% to 70%
