The diagonal arteries of the left coronary arteries supply blood to the:
anterilateral wall of the left ventricle
Reciprocal changes that are seen in an inferior MI are most often:
I, aVL & or v5 & v6
Which two drugs can affect preload in patients with right ventricular infarctions?
morphine & nitroglycerin only
Anterior MIs most often involve which artery?
left coronary artery
ST segment elevation in the face of an anteroseptal MI would involve elevation if 1mm or more in these leads:
v1, v2, v3, v4
The condition caused by inadequate cardiac output (pump failure) is called:
cardiogenic shock
ST elevation of 1mm or more in these leads is indicative of a posterior MI:
There are no leads facing leads for posterior MI.
The leads that are reciprocal leads for a posterior MI are:
v1, v2, v3, v4
All of the following are types of EKG leads except:
A) multipolar
Metabolism that occurs in the absence of O2 is termed:
anaerobic
A drug that is a naturally occurring catecholamine & stimulates both alpha & beta receptor site is:
epinehprine
Drugs that can be given down the endotracheal tube include all of the following except:
C) valium
The half-life of epinephrine is 3 to 4 minutes; the half life of vasopressin is:
10 to 20 minutes
The generic name for intropin is:
dopamaine
Mr. Johnson came to the hospital within the hour after his heart attack started. You would expect to see what indication of acute MI on his EKG?
ST segment elevation in the leads over the damaged area
In a lateral wall MI, which coronary artery is occluded?
Circumflex
The MI in Figure 20 is
extensive anterior (anterior-lateral)
In Figure 21 there is evidence of
inferior MI
Mrs. Campho had a previous inferior MI about 20 years ago. What would you expect to see on her EKG that would be consistent with her old inferior MI?
significant Q wave in II, III & AVF
The order in shich an MI progresses through "the tree I's" is:
ischemia, injury, infarction
AV dissociation is a hallmark of:
third-degree AV block
The rhythm in Figure 18 is
third-degree AV block
Wenchebach is characterized by
gradually prolonging PR intervals
The rhythm in Figure 10 is
sinus rhythm w/ a sinus arrest & a ventricular escape beat
Following PVCs is usually a(n)
complete compensatory pause
For which of the following rhythms is electrical shock to be the heart NOT appropriate?
D) aystole
The rhythm in Figure 15 is
torsades de poines
Idioventricular rhythm has a heart rate of:
20-40
Multifocal PVCs are those that:
have different shaped QRS complexes
EKG RULES
1) rate
2) rhythm/regularity
3) QRS complex
4) P waves
5) relationships & measurements
Sinus Rhythms
1) normal sinus rhythm (sinus rhythm)
2) sinus bradycardia
3) sinus tachycardia
4) sinus arrhythmia
5) sinus arrest
Normal Sinus Rhythm Characteristics
1) pacemaker site: SA node
2) rate: 60-100 bpm
3) P waves: upright in lead II, all look alike
4) PR interval: generally constant; 0.12-0.20 seconds
5) RR interval: usually regular
6) QRS complexes: usually normal apprearing & < 0.12 seconds, may be wide
7) P to QRS relationship: P precedes each QRS
H's
1) Hypovolemia
2) Hypoxia
3) Hydrogen Ion
4) Hyper/Hypo-kalemia
5) Hypothermia
6) Hypo/Hyper-glycemia
T's
1) Tablets/Toxins
2) Cardiac Tamponade
3) Tension Pneumo
4) Tamponade (AMI)
5) Thromboembolism
6) Trauma
Right Coronary Artery Dristribution
1) AV node (90% of population)
2) Right Ventricle
3) Inferior wall of left ventricle
4) Posterior wall of left ventricle
(RCA forms posterior descending branch & supplies inferior wall - 90% of population)
Left Coronary Artery
1) Supplies bundle branches in 10% of people
2) Septal Wall of left ventricle
3) Anterior wall of left ventricle
4) Lateral wall of left ventricle
5) Posterior wall of left ventricle
Lateral Wall Artery
Left Coronary Artery
Inferior Wall Artery
Right Coronary Artery
Septal Wall Artery
Left Coronary Artery
Anterior Wall Artery
Left Coronary Artery
Lead Wall's Acronym
L I I L I
S S A A L L
Antidysrhythmics
1) atropine sulfate
2) lidocaine
3) procainamide
4) adenosine
5) amiodarone
6) verapamil
Prinzmetal angina
also known as variant angina or angina inversa, is a syndrome typically consisting of angina (cardiac chest pain) at rest that occurs in cycles. It is caused by vasospasm, a narrowing of the coronary arteries caused by contraction of the smooth muscle tissue in the vessel walls rather than directly by atherosclerosis (buildup of fatty plaque and hardening of the arteries). It occurs more in younger women.
5 Rules for a 3rd Degree Heart Block Strip
1) brady
2) regular P wave w/ no QRS correlation
3) P wave extra but maps out
4) PR interval varies
5) QRS wide
trycyclic OD indication & treatemnt
1 amp Bicarb then 2 amps in 1 liter wide open (amp = 40 mEq)
SLUDGE treatment
2-5mg Atropine
SLUDGE
Salivation
Lacrimation (mamary gland)
Urination
Defication
GI upset
Emisis
Procainamide stop points
1) up to 17mg/kg to effect
2) ectopy resolves
3) QRS complex widens > 50% from original
4) hypotension ensues
Author
thom.mccusker@gmail.com
ID
142162
Card Set
cardiology PLUS medic12
Description
cardiology medic12 plus other things to study for final