Test
ECG Prep Quiz
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Preguntas del test (16)
1Which answer best defines a biopotential?
- AAn electrical gradient in living cells.
- BKinetic energy in an organism.
- CAll of the things a human can do on their lifetime.
- DThe ions in a cell.
2Excitable tissue is defined by its ability to
- ARespond to changes in the environment.
- BGenerate electricity.
- CCreate an action potential
- DAll of these are true.
3Which series of events in the cardiac cycle occurs first?
- AElectrical
- BMechanical
4What is the benefit of a 12-lead ECG? In other words, why isn’t one lead sufficient?
- AMultiple leads provide a 3 dimensional image of the electrical activity of the heart.
- BEach additional lead duplicates and verifies the others.
- CThere is no benefit.
5When reading an ECG the vertical axis is calibrated in [blank_start]millivolts[blank_end] while the horizontal axis is calibrated in [blank_start]seconds[blank_end].
- Amillivolts
- Bseconds
- Cmillivolts
- Dseconds
6What wave on an ECG indicates depolarization of the atria?
- AP wave
- BQRS Complex
- CT wave
- DPQ interval
- EQT interval
7What portion of an ECG indicates the time it takes for an electrical impulse to reach the ventricles?
- AP wave
- BQRS Complex
- CT wave
- DPR interval
- EQT interval
8Which of the following is not represented by a specific wave on a typical electrocardiogram?
- Adepolarization of the atria
- Brepolarization of the atria
- Cdepolarization of the ventricles
- Drepolarization of the ventricles
9Which happens first?
- Adepolarization of the atria
- Bdepolarization of the ventricles
10A positive T-wave is generally an indication of a cardiac abnormality.
- ATrue
- BFalse
11When referring to cardiac rhythm, what does the term irregular refer to?
- ANo R-R interval differs from any other R-R interval by more than 0.12 second.
- BNo R-R interval differs from any other R-R interval by more than 0.06 second.
- CLess than 75 beats in one minute.
- DMore than 75 beats in one minute.
12Given the following information, determine the heart rate as precisely as the rules allow.
Heart rhythm is irregular
There are 6 R-waves in 6-inch tracing
There are 6.7 R-R intervals in 6-inch tracing
Heart rate is: [blank_start]55[blank_end] bpm- A55
- B56
- C57
- D58
- E59
- F60
- G61
- H62
- I63
- J64
- K65
- L66
- M67
- N68
- O69
- P70
13If the R-R interval on an ECG tracing increases, heart rate must be:
- Aincreasing.
- Bdecreasing.
14During a cardiac cycle, which valves close first?
- AAtrioventricular (AV) valves
- BSemilunar (SL) valves
15The semilunar valves close when ventricular pressure:
- Arises
- Bfalls
16If the amplitude of a pulse wave increases this would be a rough in indication that stroke volume is:
- Aincreasing
- Bdecreasing
Información
- Descripción
- Test sobre ECG Prep Quiz, creado por Aaron Fried el 15/03/2020.
- Autor
- Aaron Fried
- Idioma
- English
- Visitas
- 399
- Valoración
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