EKG Flashcards
what heart rate is considered tachycardia?
100 BPM
what heart rate is considered bradycardia
< 60 bpm
what is the intervals between each dark line on an ECG
.2 seconds
what is the interval between each of the tiny boxes on an ECG
.04 seconds
What are the BPM intervals between .2 second lines on an ECG
300
150
100
75
60
What are the corresponding lead angles for lead I
0, 180
What are the corresponding lead angles for lead II
+60, -120
What are the corresponding lead angles for lead III
+120, -60
what are the lead angles for lead AVL
-30, +150
What are the lead angles for lead AVF
-90, +90
What are the lead angles for lead AVR
-150, +30
What should the basis of treatment be for sinus tachycardia?
Look for cause and treat that!
Caffiene, stress, anxiety, Dr. hillard
What features of the sinus node makes it the dominant cardiac pacemaker?
Highest intrinsic discharge rate
You have a young athetic person who likes BDSM. They are a sub and wear a really tight collar. What physiologic heart rhythm are they most likely to have
bradycardia
caused by anything that massages carotid, obstructive jaundice, sliding hiatial hernia, valsalva maneuver
What prevelent drugs can cause bradycardia?
Digitalis
drugs that inhibit sympathetic tone
Beta blockers
If bradycarida becomes severe enough needing treatment, what is the first line treatment
Atropine .3 -> .5 | 1 mg -> 2mg IV
What three types of premature contraction can a person experience
Premature Atrial Contraction
Premature Junctional Beat
Premature Ventricular Contraction
What type of arythmia is seen in people without significant heart disease but can be associated with stress, alchohol, tobacco, coffee, COPD, and CAD?
Premature Atrial Contraction
What is the key ECG feautre of Premature Atrial Contaction
a second P wave before the QRS
What are the 2 types of PAC you can see on ECG
Normally conducted
Blocked PAC
What is the treatment of symptomatic PAC
reverse causes
Beta Blockers - metoprolol
What is paroxysmal atrial tachycardia
Suddent HR above 100 (150-200)
What are the key ECG findings of PAT with AV block
Rapid rate, spiked P’ waves
2:1 ratio of P’:QRS
Cause: digitalis toxicity
What are the key findings on ECG for Multifocal Atrial Tachycardia
- 3 or mor different P waves
- P-R interval variable
- Associated with lung disease (Right sided deviation)
What is the treatment for multifocal atrial tachycardia?
- Calcium channel blocker
Describe ECG of Atrial Flutter and the best leads to check
Saw tooth appearance
Leads II, III, AVF, V