A nurse is reviewing the laboratory report of a client who has hypoparathyroidism. The nurse should expect which of the following values?

Phosphate 5.7 mg/dL

Vitamin D 25 ng/mL

Calcium 9.8 mg/dL

Magnesium 1.8 mEq/L

Answer and Explanation

The Correct Answer is A

Choice A reason: Phosphate 5.7 mg/dL is an elevated value, as the normal range is 2.5 to 4.5 mg/dL. Hypoparathyroidism causes low levels of parathyroid hormone (PTH), which regulates calcium and phosphorus balance in the body. Low PTH leads to low calcium and high phosphorus levels in the blood.

Choice B reason: Vitamin D 25 ng/mL is a normal value, as the normal range is 20 to 50 ng/mL. Hypoparathyroidism does not directly aﬀect vitamin D levels, but vitamin D supplements may be given to help increase calcium absorption and lower phosphorus levels in the blood.

Choice C reason: Calcium 9.8 mg/dL is a normal value, as the normal range is 8.6 to 10.2 mg/dL. Hypoparathyroidism causes low levels of parathyroid hormone (PTH), which regulates calcium and phosphorus balance in the body. Low PTH leads to low calcium and high phosphorus levels in the blood. However, calcium levels may be normal or near- normal in some cases of hypoparathyroidism, especially if the condition is mild or well-controlled with treatment.

Choice D reason: Magnesium 1.8 mEq/L is a normal value, as the normal range is 1.5 to 2.5 mEq/L. Hypoparathyroidism does not directly aﬀect magnesium levels, but magnesium deficiency can cause or worsen hypoparathyroidism, as magnesium is needed for PTH secretion and action. Magnesium supplements may be given to correct magnesium deficiency and improve PTH function.

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Correct Answer is C

Explanation

Choice A reason: Weight loss is not a symptom of Cushing’s syndrome. On the contrary, weight gain and obesity are common signs of this condition, especially in the trunk, face and upper back1.

Choice B reason: Diaphoresis, or excessive sweating, is not a symptom of Cushing’s syndrome. It can be caused by other conditions, such as hyperthyroidism, menopause or anxiety.

Choice C reason: Hyperpigmentation, or darkening of the skin, is a symptom of Cushing’s syndrome. It occurs due to increased production of melanin, the pigment that gives color to the skin. Hyperpigmentation can aﬀect any part of the body, but it is more noticeable in areas exposed to friction or pressure, such as the elbows, knees, knuckles and armpits.

Choice D reason: Hypotension, or low blood pressure, is not a symptom of Cushing’s syndrome. In fact, high blood pressure (hypertension) is one of the common symptoms of this condition, due to the eﬀects of cortisol on the cardiovascular system.

A. Thyroxine (T4) level B. Triiodothyronine (T3) level C. Thyroid stimulating hormone (TSH) level D. Glucose level

Correct Answer is C

Explanation

Choice A: Thyroxine (T4) level. This is incorrect because T4 is one of the thyroid hormones that is increased in hyperthyroidism. T4 is produced by the thyroid gland and converted to T3 in the tissues. A high level of T4 indicates overactivity of the thyroid gland.1

Choice B: Triiodothyronine (T3) level. This is incorrect because T3 is another thyroid hormone that is increased in hyperthyroidism. T3 is the more active form of thyroid hormone and regulates the metabolism of cells. A high level of T3 indicates overactivity of the thyroid gland.1

Choice C: Thyroid stimulating hormone (TSH) level. This is correct because TSH is a hormone that stimulates the thyroid gland to produce T4 and T3. TSH is produced by the pituitary gland and regulated by a feedback mechanism. When the levels of T4 and T3 are high, the pituitary gland reduces the secretion of TSH to inhibit further production of thyroid hormones. Therefore, a low level of TSH indicates hyperthyroidism.1

Choice D: Glucose level. This is incorrect because glucose level is not directly related to thyroid function. However, hyperthyroidism can aﬀect glucose metabolism and cause increased blood sugar levels due to increased breakdown of glycogen and glucose uptake by cells. Therefore, glucose level may be elevated in some cases of hyperthyroidism, but it is not a specific indicator.

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A nurse is reviewing the laboratory report of a client who has hypoparathyroidism. The nurse should expect which of the following values?

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Naxlex Comprehensive Predictor Exams

A nurse is collecting data from a client who has Cushing’s syndrome. Which of the following findings should the nurse expect?

Correct Answer is C

Explanation

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Correct Answer is C

Explanation

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