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88 Cards in this Set
 Front
 Back
Area (in millimeters) of small squares on EKG paper

1 x 1 mm


Area (in millimeters) of the large squares on EKG paper

5 x 5 mm


Time distance across one small square on EKG paper (duration)

0.04 seconds


Time distance across two small squares on EKG paper (duration)

0.08 seconds


Time distance across three small squares on EKG paper (duration)

0.12 seconds


Time distance across four small squares on EKG paper (duration)

0.16 seconds


Time distance across five small squares on EKG paper (duration)

0.2 seconds


Time distance across one large square on EKG paper (duration)

0.2 seconds


Time distance across two large squares on EKG paper (duration)

0.4 seconds


Time distance across three large squares on EKG paper (duration)

0.6 seconds


Time distance across four large squares on EKG paper (duration)

0.8 seconds


Time distance across five large squares on EKG paper (duration)

1 second


Vertical distance along one small square on EKG paper (amplitude)

0.1 mV


Vertical distance along two small squares on EKG paper (amplitude)

0.2 mV


Vertical distance along three small squares on EKG paper (amplitude)

0.3 mV


Vertical distance along four small squares on EKG paper (amplitude)

0.4 mV


Vertical distance along five small squares on EKG paper (amplitude)

0.5 mV


Vertical distance along one large square on EKG paper (amplitude)

0.5 mV


Vertical distance along two large squares on EKG paper (amplitude)

1 mV


Vertical distance along three large squares on EKG paper (amplitude)

1.5 mV


Vertical distance along four large squares on EKG paper (amplitude)

2 mV


Vertical distance along five large squares on EKG paper (amplitude)

2.5 mV


Amplitude of normal P wave does not exceed this amount in any lead.

0.25 mV
(2.5 mm or 2 1/2 small squares high) 

Duration of normal PR interval.

0.12 to 0.2 seconds
(3 to 5 mm) 

The amplitude of a normal Q wave does not exceed this amount.

0.1 mV


Duration of a normal QRS interval in seconds.

0.06 to 0.1 seconds


Time distance across 1 1/2 small squares on EKG paper (duration)

0.06 seconds


Time distance across 2 1/2 small squares on EKG paper (duration)

0.1 seconds


Time distance across 1/2 of a large square on EKG paper (duration)

0.1 seconds


The amplitude, or height, of a normal T wave.

one third to two thirds of the corresponding R wave


In general, the QT interval composes what percentage of the cardiac cycle, as measured from one R wave to the next?

40%


Time distance across one half of a small square on EKG paper (duration)

0.02 seconds


Time distance across 3 1/2 small squares on EKG paper (duration)

0.14 seconds


Time distance across 4 1/2 small squares on EKG paper (duration)

0.18 seconds


Time distance across six large squares on EKG paper (duration)

1.2 seconds


Time distance across seven large squares on EKG paper (duration)

1.4 seconds


Time distance across eight large squares on EKG paper (duration)

1.6 seconds


Time distance across nine large squares on EKG paper (duration)

1.8 seconds


Time distance across ten large squares on EKG paper (duration)

2 seconds


Duration of a normal QRS interval as measured in small squares.

1.5 to 2.5 small squares


At a glance, the width of a normal QRS interval in relation to a large square.

approx. 30% to 50%
(no more than 1/2 large square) 

The duration of one half of a large square, expressed in time.

0.1 seconds


How many large squares are in half a second?

2.5


How many large squares are in 3 seconds?

15


Three large squares equals how many beats per minute?

100


Four large squares equals how many beats per minute?

75


Five large squares equals how many beats per minute?

60


Six large squares equals how many beats per minute?

50


Two large squares equals how many beats per minute?

150


One large square equals how many beats per minute?

300


Seven large squares equals how many beats per minute?

about 43


Eight large squares equals how many beats per minute?

about 38


Nine large squares equals how many beats per minute?

about 33


Ten large squares equals how many beats per minute?

30


Fifteen large squares equals how many beats per minute?

20


Twenty large squares equals how many beats per minute?

15


Twentyfive large squares equals how many beats per minute?

12


Thirty large squares equals how many beats per minute?

10


One and a half large squares equals how many beats per minute?

200


One and a quarter large squares equals how many beats per minute?

about 240


One and three quarters large squares equals how many beats per minute?

about 170


It is possible to calculate beats per minute by dividing the number of large squares between R waves by what number?

300


It is possible to calculate beats per minute by dividing the number of small squares between R waves by what number?

1500


Describe the sixsecond method for calculating heart rate.

Simply count the number of beats on a six second strip and multiply by ten.


What is an appropriate method for estimating heart rate in an irregular rhythm?

sixsecond strip method,
multiply beats by ten 

If there are five and a half beats in a six second EKG strip, what is the heart rate.

about 55


If there are six full beats in a six second EKG strip, what is the heart rate.

about 60


If there are seven and a quarter beats in a six second EKG strip, what is the heart rate?

about 72


If there are eight and three quarter beats in a six second EKG strip, what is the heart rate?

about 88


If there are nine and a quarter beats in a six second EKG strip, what is the heart rate?

about 92


If there are ten full beats in a six second EKG strip, what is the heart rate?

100


If there are ten and a half beats in a six second EKG strip, what is the heart rate?

about 105


If there are eleven and a quarter beats in a six second EKG strip, what is the heart rate?

about 112


If there are twelve and a half beats in a six second EKG strip, what is the heart rate?

about 125


If there are fifteen and a half beats in a six second EKG strip, what is the heart rate?

about 155


If there are twenty full beats in a six second EKG strip, what is the heart rate?

200


If there are four beats in a six second EKG strip, what is the heart rate?

40


If there are three beats in a six second EKG strip, what is the heart rate?

30


If there are two beats in a six second EKG strip, what is the heart rate?

20


If there is only one beat in a six second EKG strip, what is the heart rate?

10 or less


How many large squares in six seconds?

30


What is the duration of a normal P wave in seconds?

Less than 0.12 seconds


What is the duration of a normal P wave in small boxes?

Less than 3 small boxes


standard speed for ECG paper

25 mm/s


standard gain for ECG paper

10 mm/mv


1 mv rectangular tracing made by ECG to confirm standardized settings is called the ______.

standardization mark


two elements to check when confirming standardization of EKG settings

(1) paper speed
(2) gain 

The standardization mark should be ______ mm high.

10
