Karteikarten
453: Test 2 EKG
Karten in diesem Stapel (44)
- 1The heart is the engine of the body, it is_________ and___________.electrical
mechanical - 2Cardiac cells are electrically negative at rest. ____IN and_____OUTK+
Na++ - 3Movement of sodium and potassium in and out of the cells cause changes that can be picked up on the ______ by electrodes and translated to the ECG printout.skin
- 4When the cell is stimulated by an electrical impulse,________ rushes into the cell and____________ leaks out. This causes cell to become positively charged, this is referred to as_________! Contraction follows.sodium
potassium
DEPOLARIZATION - 5During cell recovery, the sodium-potassium pump returns cell to it’s negative charge. This is____________! Muscle relaxation follows.REPOLARIZATION
- 6#1 SA Node=___-__ beats per minute60-80
- 7#2 _____=40-60 BMPAV node
- 8#3____,_____, & _______=20-40 BPMHIS, Bundle Branches & Purkinje
- 9Cardiac Intervals One small box=_____ seconds One large box=_____ seconds 5 large boxes=_____ seconds0.04 seconds
.20 seconds
1 second - 10—reference for counting
- 11PR interval – time for electrical impulse to get from _______ to the _________, <0.20 seconds (5 small or 1 large boxes)atria
ventricles - 12_____ interval – measures the time it takes to depolarize the ventricles, < 0.12 seconds (3 small boxes)QRS interval
<0.12 seconds is mentioned twice in the powerpoint and .04-.10 seconds is mentioned once - 13QT interval – measures depolarization and repolarization time of the ventricles. Measured from the beginning of the QRS to the end of the T-wave. Should be less than one half the R – R interval. If prolonged can lead to ____________. Usually 0.36 - 0.44 seconds (9 – 11 little boxes) Lead 2 or V5 – 6 best place to measure.lethal dysrhythmias
- 14Indicates atrial depolarization, or contraction of the atrium. The P wave can have any shape, up, down, or biphasic, as long as it is consistentP wave
- 15Indicates AV node conduction time Duration time is 0.12 to 0.20 secondsPR segment
- 16Indicates ventricular depolarization, or contraction of the ventricles. Interval is .04-.10 seconds or <0.12 secondsQRS interval
<0.12 seconds is mentioned twice in the powerpoint and .04-.10 seconds is mentioned once - 17Indicated ventricular repolarization. Or the ventricles at rest Rounded and asymmetricalT wave
- 18Questions to consider with an EKGIs it regular or irregular?
Is there a P wave?
Is there a P wave for every QRS?
What is the rate ?
Is the QRS wide or normal ? - 19—Sinus tachycardia (100 and above)
- 20—Sinus rhythm (60-99)
- 21—Sinus brady (59 and below )
- 22—supraventricular tachycardia (don't need to know)
*In class we pretend this is sinus tach even though there is no P wave and it breaks all there rules grrrrr
- 23—Atrial fibrilaiton (irregularly irregular with no discernible P wave)
If rate is irregular, must calculate by range
Ex. this pt is 55-90 (shorts and longest range)
- 24—atrial flutter (sawtooth or shark tooth)
- 25—Rate control: just because its upside down doesn't mean it doesn't count
*cool story bro
- 263 treatments of A-FibPREVENTINO OF BLOOD CLOTS: ASA, Warfarin. NOACS-Pradaxa, Xarelto, Eliquis
HEART RATE CONTROL: Beta Blockers
HEART RHYTHM CONTROL: Sodium Channel Blockers (Flecanide, Quinidine)
Potassium Channel Blockers (Amiodarone, Sotalol) - 27Rest period before heart get ready to beat againDepolarization
- 28—Premature atrial contraction (don't need to know)
*in class we pretend this is sinus rhythm with a rate even though its not regular once again grrrr
- 29—PVC (an ecotype we don't need to know)
- 30—PVC (an ecotype we don't need to know)
- 31A sinus rhythm must be/have what?A QRS wave and regular
- 32—(lethal ventricular rhythms)
- 33—Ventricular tachycardia (lethal ventricular rhythms)
- 34—torsades de pointe
- 35—ventricular fibrillation (lethal ventricular rhythms)
- 36Treatment of VT or V-FibAssess patient NOT monitor. Pulse? LOC? VS?
CPR, O2, IV, defib/pacer pads
Cardioversion: Stable
Defibrillate: Symptomatic
Rx: Epi, vasopressin, amiodarone, (Lidocaine, old school) - 37—Torsades
can occur when magnesium is depeleated
- 38Long QT syndrome Risk factors?Torsades de Pointes
Risk factors:
Medications, women 2x > men, >65 y/o, Heart Dx, Diuretics, Renal or Hepatic dysfunction, Electrolytes abnorms, Bradycardia, - 39Treatment Collaborative Care for TorsadesSTOP CAUSATIVE MEDS
Synchronized Cardioversion
IV Magnesium (for who?), Potassium, Amiodarone
IAD - 40Education Collaborative Care for TorsadesMedications to avoid and those to take
Seek care immediately for syncope
BLS training for family, consider AED (enter defibrilatior) - 41—Benefits of multiple leads
- 42What is this?Point is sometimes you need more then one lead
- 43What is this??
- 44TEST QUESITON Cardioversion and defribilationBOTH SHOCK
Defibrilaiton-push button pads go, it will go no matter what when you push button
cardioversion synchronized- goes specifically when a pattern is recognized. *Used during Vtach if conscious and unsymtomatic
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- Karteikarten am 453: Test 2 EKG , erstellt von brittny beauford am 14/02/2017.
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- brittny beauford
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