Under what condition can the big box method be used?
EKG HR Calculation - Sequence Method aka 300 Methd/BigBox Methd

Passage
•
Other
•
12th Grade
•
Hard
Charissa Haywood
FREE Resource
8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Only if the patient's rhythm is irregular
In all types of heart rhythms
Only if the patient's rhythm is regular
Only in atrial fibrillation
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What method should be used if the patient is in atrial fibrillation?
The big box method
The six second method
The regular rhythm method
The 301 5100 method
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you start calculating the heart rate using the big box method?
By measuring the distance between two R waves
By finding a QRS complex that lands in the middle of a big box
By finding a QRS complex or R wave peak that lands right on a big line
By counting the number of QRS complexes in 6 seconds
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the sequence of numbers used in the big box method to calculate heart rate?
150, 100, 75, 60, 50
60, 75, 100, 150, 300
100, 150, 200, 250, 300
300, 150, 100, 75, 60
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why can't the big box method be used for irregular rhythms?
Because it was designed specifically for atrial fibrillation
Because it requires electronic calculation
Because it only works for rhythms faster than 100 beats per minute
Because it requires a steady rhythm to count the boxes accurately
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens if you incorrectly use the big box method for an irregular rhythm?
It will always overestimate the heart rate
It will always underestimate the heart rate
It will give the correct heart rate but with a margin of error
It can lead to significant inaccuracies in heart rate calculation
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the heart rate if the next R wave occurs just on the other side of 100 using the big box method?
75 beats per minute
100 beats per minute
150 beats per minute
90 beats per minute
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is indicated if the next R wave after counting lands right on the next big box?
The heart rate is 100 beats per minute
The heart rate is 300 beats per minute
The heart rate is 150 beats per minute
The heart rate cannot be determined
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