A nurse in a clinic is reviewing the laboratory values of a patient who has primary hypothyroidism. The nurse should anticipate an elevation in which of the following laboratory values?
Free T4.
Serum T3.
Thyroid stimulating hormone (TSH).
Serum calcium.
The Correct Answer is C
Choice A rationale
Free T4 levels are typically low in primary hypothyroidism, not elevated.
Choice B rationale
Serum T3 levels are also typically low in primary hypothyroidism.
Choice C rationale
In primary hypothyroidism, the thyroid gland is not producing enough thyroid hormone, leading to an elevated TSH level as the pituitary gland tries to stimulate more hormone production.
Choice D rationale
Serum calcium levels are not directly affected by primary hypothyroidism.
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Related Questions
Correct Answer is D
Explanation
Choice A rationale
An increase in intraocular pressure is not a cause of diabetic retinopathy. Diabetic retinopathy is caused by damage to the blood vessels in the retina due to high blood sugar levels.
Choice B rationale
While regular eye exams are important for patients with diabetes mellitus, having an eye exam every 2 years may not be sufficient for detecting and managing diabetic retinopathy. More frequent eye exams may be recommended depending on the patient’s condition.
Choice C rationale
Clouding of the lens is not a manifestation of diabetic retinopathy. This is a symptom of cataracts, not diabetic retinopathy. Diabetic retinopathy affects the blood vessels in the retina, not the lens of the eye.
Choice D rationale
Seeing spots, also known as floaters, is a common symptom of diabetic retinopathy. This occurs when blood and other fluids leak into the vitreous, the clear, jelly-like substance that fills the inside of the eye.
Correct Answer is C
Explanation
Choice A rationale
Hyperthermia and severe tachycardia are not typical symptoms of damage to the parathyroid glands.
Choice B rationale
Hypercalcemia and shortness of breath are not typical symptoms of damage to the parathyroid glands.
Choice C rationale
Laryngospasms and tingling in the hands and feet can be symptoms of hypoparathyroidism, a condition that can occur if the parathyroid glands are damaged. Hypoparathyroidism can lead to low levels of calcium in the blood, which can cause these symptoms.
Choice D rationale
Hypophosphatemia, hypertension, vomiting, and chest pain are not typical symptoms of damage to the parathyroid glands.
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