question

EKG paper passes under the pen at a rate of _______________.

answer

25mm/sec

question

Each little box on an EKG is therefore 1/25th of a second, or _______________.

answer

0.04 seconds

question

One big box is made up of 5 little boxes, so 5 x 0.04 is _______________.

answer

0.20 seconds

question

So 5 big boxes makes _______________.

answer

1 second

question

Each lead is represented by _______________ and the full EKG is _______________ long.

answer

2.5 seconds/10 seconds

question

Vertical height on an EKG is measured in _______________.

answer

millimeters

question

Each small box = _______________.

answer

1mm

question

Each large box, which contains 5 small boxes, is _______________.

answer

5mm

question

Everything on the EKG is measured in _______________ or _______________.

answer

mm/ms

question

The paper is broken down into either _______________ or _______________ strips.

answer

three/four

question

The three top strips are broken down in to the _______________, which are labeled.

answer

twelve leads

question

The fourth strip found at the bottom is a _______________ and is usually lead _______________.

answer

rhythm strip/II

question

On many machines, the rhythm strip is _______________ with the leads directly on top of it.

answer

synchronized

question

At the end of each EKG strip, you will usually find a step like structure called a _______________.

answer

calibration box

question

The standard box is _______________ high and _______________ wide.

answer

10mm/0.20 seconds

question

The calibration box is there to confirm that the EKG conforms to the _______________.

answer

standard format

question

Occasionally, you will find an EKG that has been formatted in _______________ calibration.

answer

half-standard

question

Half-standard calibration is usually done when the complexes are so _______________ that they run into each other.

answer

tall

question

You will know that it is half-standard because there will be an additional _______________ halfway up the box that lasts for half the width of the standard box.

answer

step

question

When you see this stair like configuration to the right, you are at _______________.

answer

half-standard

question

Another calibration you may run across is one in which the paper speed is set to _______________, instead of the traditional 25mm/sec.

answer

50mm/sec

question

In the case of 50mm/sec calibration, the calibration box will be _______________ wide.

answer

0.40 seconds

question

The EKG machine's computer is capable of measuring _______________ or more leads at once and representing them on the EKG simultaneously.

answer

3

question

Events touching this imaginary red line occurred _______________.

answer

simultaneously

question

Always check that the tips of the _______________ are found along the same vertical line on the EKG paper by lining them up with a straight edge.

answer

complexes

question

Checking that the tips of the complexes are found along the same vertical line on the EKG paper by lining them up with a straight edge protects you against making a mistake in _______________ the complexes.

answer

interpreting

question

As you are interpreting an EKG, you should notice different _______________.

answer

morphologies

question

For example, on the figure to the right, the _______________ and _______________ complexes are different from the rest. (6-pointed stars instead of 5-pointed stars).

answer

5th/6th

question

Because of the 5th and 6th complex differences from the rest, you can interpret complexes appearing in leads _______________ and make the right diagnosis and interpretation.

answer

V1 to V3

question

The knowledge involving the temporal relationship of the EKG can dramatically alter your final _______________ and potentially save a life.

answer

diagnosis

question

Temporal spacing is very important in determining:

answer

- Rhythms - Intervals - ST segment changes - Premature complexes - Aberrantly conducted beats

question

The paper on an ECG normally moves at: A. 50 mm/sec B. 75 mm/sec C. 25 cm/sec D. 25 mm/sec

answer

D. 25 mm/sec

question

The width of each small box represents: A. 0.04 seconds B. 0.02 seconds C. 0.40 seconds D. 0.20 seconds E. None of the above

answer

A. 0.04 seconds

question

What is the time frame occupied by one lead on a regular 12-lead ECG? A. 0.3 seconds B. 2.5 seconds C. 13 seconds D. 30 seconds E. None of the above

answer

B. 2.5 seconds

question

The entire ECG is: A. 3 seconds long B. 6 seconds long C. 9 seconds long D. 10 seconds long E. None of the above

answer

D. 10 seconds long

question

The small boxes on the ECG paper measure: A. 1 cm by 0.20 seconds B. 1 mm by 0.20 seconds C. 1 cm by 0.04 seconds D. 1 mm by 0.04 seconds E. None of the above

answer

D. 1 mm by 0.04 seconds

question

The big boxes on the ECG paper measure: A. 5 mm by 0.20 seconds B. 1 mm by 0.20 seconds C. 5 mm by 0.04 seconds D. 1 mm by 0.04 seconds E. None of the above

answer

A. 5 mm by 0.20 seconds

question

A wave that is 10 small boxes high and three small boxes wide is described as being: A. 1.0 mm by 0.3 seconds B. 10 mm by 0.12 seconds C. 12 mm by 0.3 seconds D. 12 mm by 0.10 seconds E. None of the above

answer

B. 10 mm by 0.12 seconds

question

A distance of 2 big boxes and 2 little boxes wide is described as being: A. 22 mm wide B. 0.22 seconds wide C. 0.48 seconds wide D. 4.8 seconds wide E. None of the above

answer

C. 0.48 seconds wide

question

If an ECG were obtained at half-standard, a wave that is 20 mm high would be described as being: A. 10 mm high B. 20 mm high C. 30 mm high D. 40 mm high E. None of the above

answer

D. 40 mm high

question

All ECGs are formatted the same way on the paper. True or False.

answer

False

Chapter 4 — The Actual EKG: Paper and Ink – Flashcards

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