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What is the rate on the rhythm strip in the image below?

C:\Users\USER\AppData\Local\Microsoft\Windows\INetCache\Content.MSO\F88374E1.tmp

A.

90

B.

110

C.

73

D.

50

Answer and Explanation

The Correct Answer is A

A. To determine the heart rate from a rhythm strip, you can count the number of R-R intervals in a set time frame (typically 6 seconds) and multiply by 10 to convert to beats per minute. If the rhythm is regular, you can also use the 300 method by dividing 300 by the number of large squares between R waves. In this case, the rate is calculated to be 90 beats per minute.

 

B. A heart rate of 110 beats per minute would be classified as tachycardia and is not supported by the observed intervals.


C. A heart rate of 73 beats per minute would be a normal resting heart rate but does not match the calculation from the rhythm strip.


D. A heart rate of 50 beats per minute would indicate bradycardia, which is not reflected in this rhythm strip.


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View Related questions

Correct Answer is D

Explanation

A. Bradypnea (slow breathing) may occur in various conditions but is not a defining characteristic of cyanosis.

B. A pale reddish color in the skin is not consistent with cyanosis, which indicates a lack of oxygen in the blood.

C. Somnolence (drowsiness) may be present in some patients, but it is not a specific finding related to cyanosis.

D. Mottled blue color in the skin is a classic sign of cyanosis, indicating inadequate oxygenation of the blood, especially in the extremities or areas with poor circulation.

Correct Answer is D

Explanation

A. In the anterior chest assessment, auscultation usually follows inspection and is typically done before percussion.

B. In the neck assessment, the nurse may inspect and then auscultate (e.g., carotid arteries) before palpation.

C. In the heart assessment, auscultation follows inspection but may not involve percussion.

D. In the abdomen, the correct order is to inspect, auscultate, and then percuss to assess bowel sounds effectively before creating additional disturbances with percussion.

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