What is the rate on the rhythm strip in the image below?
90
110
73
50
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Presbyopia is a common age-related condition that affects the ability to see close objects clearly, which aligns with the client's difficulty in reading, sewing, and seeing faces up close.
B. While some vision changes are expected with aging, the specific difficulties the client is experiencing suggest a more definitive condition rather than "normal" vision changes.
C. While cataracts can cause vision issues, the specific symptoms described (trouble reading and seeing objects up close) are more characteristic of presbyopia.
D. Glaucoma typically involves peripheral vision loss rather than difficulty with near vision, so this option is not supported by the findings.
Correct Answer is B
Explanation
A. Lordosis is an exaggerated inward curvature of the lumbar spine.
B. Scoliosis is a lateral curvature of the spine, often characterized by an "S" or "C" shape when viewed from behind. This is the disorder depicted in the image.
C. Kyphosis is an exaggerated outward curvature of the thoracic spine, often leading to a hunchback appearance.
D. Funnel chest (pectus excavatum) is a condition where the breastbone sinks into the chest, creating a sunken appearance.
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