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.
Free Nursing Test Bank
- Free Pharmacology Quiz 1
- Free Medical-Surgical Quiz 2
- Free Fundamentals Quiz 3
- Free Maternal-Newborn Quiz 4
- Free Anatomy and Physiology Quiz 5
- Free Obstetrics and Pediatrics Quiz 6
- Free Fluid and Electrolytes Quiz 7
- Free Community Health Quiz 8
- Free Promoting Health across the Lifespan Quiz 9
- Free Multidimensional Care Quiz 10
View Related questions
Correct Answer is B
Explanation
A. Observing for facial symmetry assesses cranial nerves VII (facial nerve), not cranial nerve III.
B. Cranial nerve III (oculomotor nerve) is responsible for eye movement and pupillary response, making checking the pupillary response to light the correct action.
C. Testing visual acuity primarily assesses cranial nerve II (optic nerve), not cranial nerve III.
D. Eliciting the gag reflex is associated with cranial nerves IX (glossopharyngeal) and X (vagus), not cranial nerve III.
Correct Answer is A
Explanation
A. Vitamin D deficiency is a modifiable risk factor because it can be addressed through dietary changes, supplements, and increased sun exposure.
B. A small-boned, thin frame is considered a nonmodifiable risk factor as it is a genetic characteristic that cannot be changed.
C. A personal history of fractures is also a nonmodifiable risk factor, as past fractures indicate an increased risk for future fractures and cannot be altered.
D. Age is a nonmodifiable risk factor, as it is an intrinsic characteristic that cannot be changed.