A client who swims several times a week asks the nurse, "Why are ears prone to frequent infection?" What is the nurse's best response?
"The pool water has chlorine that is killing all of the good bacteria."
"The pool water is entering your Eustachian tubes."
"The pool water has microorganisms that are entering your ears."
"The pool water is drying out your ears, causing skin breakdown."
The Correct Answer is C
A. While chlorine can kill some bacteria, it does not prevent all microbial growth and does not directly explain ear infections.
B. Pool water entering the Eustachian tubes is unlikely; infections are more commonly related to pathogens in the water.
C. The best response addresses the presence of microorganisms in pool water that can enter the ear and potentially lead to infections, such as swimmer's ear (otitis externa).
D. Pool water is not typically associated with drying out the ears; rather, it can lead to excess moisture, which can promote bacterial growth.
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Correct Answer is B
Explanation
A. Quadriplegia, or tetraplegia, is typically associated with injuries at or above the C4 level, not T2-T3.
B. A T2-T3 spinal cord injury can lead to loss of sensation and motor function below the level of injury, affecting the thoracic region and lower body.
C. Hemiplegia, which refers to paralysis on one side of the body, is typically due to brain injuries or strokes, not spinal cord injuries.
D. While bladder control may be affected, the most direct impact of T2-T3 injury is the loss of sensation and motor function below that level.
Correct Answer is B
Explanation
A. Serum thyroxine (T4) is typically decreased in primary hypothyroidism due to reduced thyroid hormone production.
B. In primary hypothyroidism, the thyroid gland fails to produce sufficient hormones, which leads to an increase in thyroid-stimulating hormone (TSH) as the pituitary gland tries to stimulate thyroid function. Elevated TSH is a common finding in primary hypothyroidism.
C. Serum T3 is usually decreased in primary hypothyroidism since the production of T3 and T4 is reduced.
D. Free T4 is typically low in primary hypothyroidism as the thyroid gland is underactive and not producing adequate levels of thyroid hormones.