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39 Cards in this Set
- Front
- Back
- 3rd side (hint)
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10 mm |
The EKG machine is properly standardized if 1mV produces a deflection of how many milimeters (mm) |
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The eletrical activity of the heart |
What does the EKG record? |
Voltmeter |
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True |
The pulmonary veins carry oxygenated blood from the lungs to the heart. True or false? |
Veins=toward |
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Right leg |
This limb sensor is the reference or ground electrode |
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Normal PR Interval |
0.12 - 0.20 measures this duration |
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PR interval |
This represents the time it takes for electrical impulses to travel from the SA node and atria to the AV node, bundle of His, bundle branches and to the Purkinje fibers |
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Time |
The horizontal axis on an ekg represents what unit of measurement |
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Left leg to left arm LL LA |
The proper electrode for lead III is located where |
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Angina |
A decrease in the amount of blood flow to a section of the heart can cause chest pain and discomfort, which is called: |
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25 mm/sec |
The normal running speed of the EKG paper |
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Sensors |
Electrodes are also referred to as what |
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Pt diagnosis |
EKG strips should include all of the following except: Date of the exam Technician name or initial Pt name or initial Pt Diagnosis |
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Lead II |
The left leg is positive and the right arm is negative |
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P wave |
The first electrical impulse that is recorded on the EKG paper during a normal cardiac cycle |
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Complex |
Several waveforms |
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Waveforms |
Movement away from the baseline |
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Interval |
A waveform + a segment |
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Segment |
A line between waveforms |
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Heart attack and coronary occlusion |
What are two other names for a myocardial infarction |
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30 large boxes or 150 small boxes |
When the speed of the ECG paper equals 25 mm/sec, the 6 sec strip is represented by how many boxes |
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10 leads |
The 12 lead EKG is produced by applying how many leads on a pt |
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0.20 seconds |
Large boxes on an ekg measures this unit of time |
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0.04 seconds / 1 mm high |
Small squares on an ekg represent these units of measurement |
Time / size |
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Voltage |
The vertical axis of the ecg measures what unit |
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15 large squares |
A 3 second strip represents how many large squares |
6 sec strip = 30 large boxes |
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Less than 0.12 seconds |
What is the normal QRS complex measurement |
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R-R interval (or P-P) |
When analyzing a strip, you determine rhythm by looking at what on the ecg |
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Measuring a strips RATE |
When analyzing a strips ____, you can: -Estimate by counting R peaks in 6 sec strip and multiply by 10 -Count small blocks in R-R interval and divide into 1500 -Count the amount of large boxes in R-R intervals and divide into 300 |
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Prolonged |
A qrs measurement that 0.16 seconds is considered what: |
More than 12 seconds |
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Artifacts/EKG interferences |
60 cycle appliances Muscle tremors Coughing |
Affects results of ekgs |
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Flat line on ekg |
A pt is in systole The leads have come off Pt is not hooked up |
These are the causes of this on ekg tracing... |
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Sinus dysrhythmia |
A rhythm that has all the characteristics of a normal sinus rhythm, but is irregular |
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SA node |
Natural pacemaker of the heart |
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Semi Fowlers 30 degrees |
Position of a pt with orthopnea |
Trouble breathing |
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60 cycle interference/ electrical interference |
Electrical cord localized under the pt bed produces which artifact |
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80 bpm |
The number of R waves on a six second strip is 8. Whats the HR |
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60 bpm |
The R-R interval is 5 large boxes, the HR is: |
300/5 |
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Erroneous mark |
What kind of artifact is produced by a loose electrode |
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Bradycardia |
On an ecg of a 75 yo pt with complaints of chest pain, there are 37 small boxes in RR interval. What's the rhythm |
1500/37 |
