A nurse is assessing a client who has Graves’ disease. The nurse should expect which of the following laboratory results?
Decreased thyroxine (T4) level.
Decreased triiodothyronine (T3) level.
Decreased thyroid-stimulating immunoglobulins (TSI) percentage.
Decreased thyroid-stimulating hormone (TSH) level.
The Correct Answer is D
Choice A Reason:
A decreased thyroxine (T4) level is not expected in a client with Graves’ disease. Graves’ disease is an autoimmune disorder that leads to hyperthyroidism, where the thyroid gland produces excessive amounts of thyroid hormones, including T4. Therefore, the T4 level is typically elevated, not decreased.
Choice B Reason:
Similarly, a decreased triiodothyronine (T3) level is not expected in Graves’ disease. Like T4, T3 levels are usually elevated due to the overactive thyroid gland. T3 is the active form of thyroid hormone and is often increased in hyperthyroid conditions.
Choice C Reason:
Decreased thyroid-stimulating immunoglobulins (TSI) percentage is incorrect. In Graves’ disease, TSI levels are elevated because these antibodies stimulate the thyroid gland to produce more thyroid hormones. TSI mimics the action of TSH, leading to increased production of T3 and T4.
Choice D Reason:
Decreased thyroid-stimulating hormone (TSH) level is the correct answer. In Graves’ disease, the excessive thyroid hormones (T3 and T4) exert negative feedback on the pituitary gland, leading to suppressed TSH production. Therefore, TSH levels are typically low in patients with Graves’ disease.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A Reason:
Hemoptysis, or coughing up blood, is a common feature of both mitral valve stenosis and mitral valve regurgitation. In mitral valve stenosis, the narrowing of the valve leads to increased pressure in the pulmonary veins, which can cause pulmonary congestion and hemoptysis. Similarly, in mitral valve regurgitation, the backflow of blood into the left atrium increases pulmonary pressure, potentially leading to pulmonary edema and hemoptysis. Therefore, hemoptysis is a shared symptom of both conditions.
Choice B Reason:
A high-pitched holosystolic murmur is more commonly associated with mitral valve regurgitation rather than mitral valve stenosis. In mitral valve regurgitation, the murmur is caused by the backflow of blood from the left ventricle into the left atrium during systole3. Mitral valve stenosis, on the other hand, typically presents with a diastolic murmur due to the turbulent flow of blood through the narrowed valve during diastole. Therefore, a high-pitched holosystolic murmur is not a common feature of both disorders.
Choice C Reason:
Hepatomegaly, or an enlarged liver, can occur in advanced cases of both mitral valve stenosis and mitral valve regurgitation due to right-sided heart failure. However, it is not a primary or common feature of these conditions. Hepatomegaly is more often associated with conditions that directly affect the right side of the heart or cause systemic congestion. Therefore, hepatomegaly is not a common feature of both mitral valve stenosis and mitral valve regurgitation.
Correct Answer is D
Explanation
Order a high-fiber diet
Choice A Reason:
Encourage dietary intake
Encouraging dietary intake is generally important for maintaining nutritional status, but it is not specific to the preparation for a barium enema. The preparation for a barium enema typically involves dietary restrictions to ensure the colon is clear for the procedure. Therefore, this choice is not correct.
Choice B Reason:
Encourage plenty of fat
Encouraging plenty of fat is not appropriate for the preparation of a barium enema. High-fat foods can slow down the digestive process and may interfere with the clarity of the images obtained during the procedure. Therefore, this choice is not correct.
Choice C Reason:
Serve dairy products
Serving dairy products is not recommended before a barium enema. Dairy products can cause gas and bloating, which can interfere with the procedure. Additionally, some patients may be lactose intolerant, which can further complicate the preparation. Therefore, this choice is not correct.
Choice D Reason:
Order a high-fiber diet
Ordering a high-fiber diet is the correct choice. A high-fiber diet helps to clear the intestines by promoting bowel movements. This is important for ensuring that the colon is empty and clear for the barium enema, which allows for better imaging and more accurate results.
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