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Calculate the heart rate based on this rhythm strip.

100

Answer and Explanation

The Correct Answer is A

To calculate the heart rate based on the rhythm strip, we can use the "six-second method".

Count the number of QRS complexes in a six-second strip.

Multiply this number by 10.

In this case, it appears that there are approximately 6 QRS complexes in a six-second strip.

Therefore, the heart rate is approximately 6 x 10 = 60 beats per minute.

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Correct Answer is "{\"xRanges\":[149.828125,169.828125],\"yRanges\":[182,202]}"

Explanation

The T-wave is the final positive deflection of the ECG cycle. It represents the repolarization of the ventricles.

Therefore, you would select the area of the ECG graph that shows a rounded, positive peak following the QRS complex.

A. Ventricular tachycardia B. Sinus tachycardia C. Sinus bradycardia D. Normal sinus rhythm

Correct Answer is C

Explanation

A) Ventricular tachycardia: Ventricular tachycardia is characterized by a rapid heart rate exceeding 100 bpm, typically arising from abnormal ventricular activity. In this case, the heart rate is 59 bpm, which does not support this interpretation. Additionally, ventricular tachycardia usually presents with wide QRS complexes and no discernible P waves, neither of which is true in this scenario.

B) Sinus tachycardia: Sinus tachycardia is defined by a heart rate exceeding 100 bpm originating from the sinoatrial (SA) node, with a regular rhythm and normal P waves. The heart rate of 59 bpm in this client is too low for a diagnosis of sinus tachycardia, making this option incorrect.

C) Sinus bradycardia: Sinus bradycardia occurs when the heart rate is less than 60 bpm, with a regular rhythm and a normal PR interval and QRS duration. The provided data shows a heart rate of 59 bpm, a regular rhythm, one P wave for every QRS complex, a PR interval of 0.20 seconds, and a QRS duration of 0.10 seconds, which aligns perfectly with the criteria for sinus bradycardia.

D) Normal sinus rhythm: Normal sinus rhythm typically presents with a heart rate of 60-100 bpm, a regular rhythm, and appropriate P waves for each QRS complex. Given the heart rate of 59 bpm, this does not meet the criteria for normal sinus rhythm, as it falls below the acceptable range.

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Calculate the heart rate based on this rhythm strip.

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Naxlex Comprehensive Predictor Exams

Correct Answer is "{\"xRanges\":[149.828125,169.828125],\"yRanges\":[182,202]}"

Explanation

Correct Answer is C

Explanation

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