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.
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Correct Answer is C
Explanation
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B. Apples are typically a safe fruit for GERD sufferers.
C. Chocolate can relax the lower esophageal sphincter and may worsen GERD symptoms, so it should be avoided.
D. Nonfat milk is usually tolerated better than full-fat dairy products and may help soothe the stomach.
Correct Answer is A
Explanation
A. This is the correct answer as conjunctivitis, commonly known as pink eye, is characterized by redness, swelling, and discharge from the eye, which is likely what the image shows.
B. Cataracts typically present as clouding of the lens of the eye, leading to blurred vision but do not present with redness or discharge like conjunctivitis.
C. This condition often involves increased intraocular pressure and can lead to vision loss, but it does not usually cause the symptoms depicted in the image of conjunctivitis.
D. This is primarily associated with central vision loss and does not produce the external symptoms of redness or discharge typical of conjunctivitis.