The Nurse Needs to Quickly Estimate the Heart Rate for a Patient

question 18

Multiple Choice

The nurse needs to quickly estimate the heart rate for a patient with a regular heart rhythm. Which method will be best to use?

• A)Count the number of large squares in the R-R interval and divide by 300.
• B)Print a 1-minute electrocardiogram (ECG) strip and count the number of QRS complexes.
• C)Use the 3-second markers to count the number of QRS complexes in 6 seconds and multiply by 10.
• D)Calculate the number of small squares between one QRS complex and the next and divide into 1500.

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Definitions:

Ganglion Cells

In the context of the nervous system, ganglion cells refer to a type of neuron located in the retina that receives visual information from photoreceptors via intermediate bipolar cells and transmits it to the brain.

Bipolar Cells

A type of neuron found in the eye's retina, acting as intermediaries between photoreceptors (rods and cones) and ganglion cells, contributing to the processing of visual information.

Rods

Photoreceptor cells in the retina of the eye that are highly sensitive to low light levels and are essential for night vision but do not perceive color.

Cognitive Restructuring

A therapeutic process of identifying and challenging negative and irrational thoughts and beliefs, and replacing them with more positive and realistic ones.