Chapter 52

Which of the following diagnostic tests are done to determine a suspected pituitary tumor? Radiographs of the abdomen A computed tomography (CT) scan Measuring blood hormone levels A radioimmunoassay

A computed tomography (CT) scan A CT or magnetic resonance imaging (MRI) scan is used to diagnose the presence and extent of pituitary tumors.

Which condition may contribute to hyperparathyroidism?

Chronic renal failure Because failing kidneys can't convert vitamin D, the serum calcium level declines. Parathyroid hormone release increases, causing hyperparathyroidism. Thyroidectomy may lead to hypoparathyroidism if the parathyroid is also removed during surgery. Serum calcium level may rise as a result of hyperparathyroidism, so it isn't a contributing factor. Steroid use causes calcium to leave bone, suppressing parathyroid hormone.

A client is admitted for treatment of the syndrome of inappropriate antidiuretic hormone (SIADH). Which nursing intervention is appropriate? Infusing I.V. fluids rapidly as ordered Restricting fluids Administering glucose-containing I.V. fluids as ordered Encouraging increased oral intake

Restricting fluids To reduce water retention in a client with the SIADH, the nurse should restrict fluids. Administering fluids by any route would further increase the client's already heightened fluid load.

A nurse is caring for a client who was recently diagnosed with hyperparathyroidism. Which statement by the client indicates the need for additional discharge teaching? "I will take my pain medications according to the schedule we developed." "I will increase my fluid and calcium intake." "I'll schedule a follow-up visit with my physician as soon as I get home." "I'll call my physician if I notice tingling around my lips."

"I will increase my fluid and calcium intake." The client requires additional teaching if he states that he will increase his calcium intake. Hyperparathyroidism causes extreme increases in serum calcium levels. The client should increase his fluid intake, but he should limit his calcium and vitamin D intake. The client should continue to take pain mediations as scheduled and have regular follow-up visits with his physician. Tingling around the lips is a sign of hypercalcemia and should be reported to the physician immediately.

A female client with hyperglycemia who weighs 210 lb (95 kg) tells the nurse that her husband sleeps in another room because her snoring keeps him awake. The nurse notices that the client has large hands and a hoarse voice. Which disorder would the nurse suspect as a possible cause of the client's hyperglycemia? Acromegaly Type 1 diabetes mellitus Deficient growth hormone Hypothyroidism

Acromegaly Acromegaly, which is caused by a pituitary tumor that releases excessive growth hormone, is associated with hyperglycemia, hypertension, diaphoresis, peripheral neuropathy, and joint pain. Enlarged hands and feet are related to lateral bone growth, which is seen in adults with this disorder. The accompanying soft tissue swelling causes hoarseness and, commonly, sleep apnea. Type 1 diabetes is usually seen in children, and newly diagnosed persons are usually very ill and thin. Hypothyroidism and growth hormone deficiency aren't associated with hyperglycemia.

During a follow-up visit to the physician, a client with hyperparathyroidism asks the nurse to explain the physiology of the parathyroid glands. The nurse states that these glands produce parathyroid hormone (PTH). PTH maintains the balance between calcium and: a. sodium. b. potassium. c. magnesium. d. phosphorus.

phosphorus. PTH increases the serum calcium level and decreases the serum phosphate level. PTH doesn't affect sodium, potassium, or magnesium regulation.

During preoperative teaching for a client who will undergo subtotal thyroidectomy, the nurse should include which statement? "The head of your bed must remain flat for 24 hours after surgery." "You must avoid hyperextending your neck after surgery." "You won't be able to swallow for the first day or two." "You should avoid deep breathing and coughing after surgery."

"You must avoid hyperextending your neck after surgery." To prevent undue pressure on the surgical incision after subtotal thyroidectomy, the nurse should advise the client to avoid hyperextending the neck. The client may elevate the head of the bed as desired and should perform deep breathing and coughing to help prevent pneumonia. Subtotal thyroidectomy doesn't affect swallowing.

Which of the following diagnostic tests are done to determine suspected pituitary tumor? A computed tomography scan A radioimmunoassay Measuring blood hormone levels Radiographs of the abdomen

A computed tomography scan A computed tomography or magnetic resonance imaging scan is done to detect a suspected pituitary tumor. Radiographs of the chest or abdomen are taken to detect tumors. Radiographs also determine the size of the organ and their location. However, measuring blood hormone levels helps determine the functioning of endocrine glands. A radioimmunoassay determines the concentration of a substance in plasma.

Which of the following disorders is characterized by a group of symptoms produced by an excess of free circulating cortisol from the adrenal cortex? Cushing syndrome Addison's disease Graves' disease Hashimoto's disease

Cushing syndrome The patient with Cushing syndrome demonstrates truncal obesity, moon face, acne, abdominal striae, and hypertension. Regardless of the cause, the normal feedback mechanisms that control the function of the adrenal cortex become ineffective, and the usual diurnal pattern of cortisol is lost. The signs and symptoms of Cushing syndrome are primarily a result of the oversecretion of glucocorticoids and androgens, although mineralocorticoid secretion also may be affected.

Margaret Lawson, a 52-year-old grocery clerk, has been experiencing a decrease in serum calcium. She has undergone diagnostics, and her physician proposes her calcium level fluctuation is due to altered parathyroid function. What is the typical number of parathyroid glands? Four Three Two One

Four The parathyroid glands are four (some people have more than four) small, bean-shaped bodies, each surrounded by a capsule of connective tissue and embedded within the lateral lobes of the thyroid.

The nurse is reviewing a client's history which reveals that the client has had an over secretion of growth hormone (GH) that occurred before puberty. The nurse interprets this as which of the following? Acromegaly Dwarfism Gigantism Simmonds' disease

Gigantism When over secretion of GH occurs before puberty, gigantism results. Dwarfism occurs when secretion of GH is insufficient during childhood. Oversecretion of GH during adulthood results in acromegaly. An absence of pituitary hormonal activity causes Simmonds' disease.

A client is having chronic pain from arthritis. What type of hormone is released in response to the stress of this pain that suppresses inflammation and helps the body withstand stress? Testosterone Mineralocorticoids Glucocorticoids Estrogen

Glucocorticoids Glucocorticoids, such as cortisol, affect body metabolism, suppress inflammation, and help the body withstand stress. Mineralocorticoids, primarily aldosterone, maintain water and electrolyte balances. The androgenic hormones convert to testosterone and estrogens.

The nurse assesses a patient who has been diagnosed with Addison's disease. Which of the following is a diagnostic sign of this disease? A blood pressure reading of 135/90 mm Hg Sodium of 140 mEq/L Potassium of 6.0 mEq/L Glucose of 100 mg/dL

Potassium of 6.0 mEq/L Addison's disease is characterized by hypotension, low blood glucose, low serum sodium, and high serum potassium levels. The normal serum potassium level is 3.5 to 5 mEq/L.

a client with acromegaly is admitted to the hospital with complaints of partial blindness that began suddenly. What does the nurse suspect is occurring with this client? Glaucoma Retinal detachment Corneal abrasions Pressure on the optic nerve

Pressure on the optic nerve Partial blindness may result from pressure on the optic nerve. Glaucoma does not occur suddenly, and the client did not report injury to suspect corneal abrasions or retinal detachment.

parathyroid hormone (PTH) has which effects on the kidney? Stimulation of calcium reabsorption and phosphate excretion Stimulation of phosphate reabsorption and calcium excretion Increased absorption of vitamin D and excretion of vitamin E Increased absorption of vitamin E and excretion of vitamin D

Stimulation of calcium reabsorption and phosphate excretion PTH stimulates the kidneys to reabsorb calcium and excrete phosphate and converts vitamin D to its active form, 1,25-dihydroxyvitamin D. PTH doesn't have a role in the metabolism of vitamin E.

A client is scheduled for a diagnostic test to measure blood hormone levels. The nurse expects that this test will determine which of the following? The concentration of a substance in plasma Details about the size of the organ and its location The functioning of endocrine glands The client's blood sugar level

The functioning of endocrine glands Measuring blood hormone levels helps determine the functioning of endocrine glands. A radioimmunoassay determines the concentration of a substance in plasma. The measurement of blood hormone levels will not reveal a client's blood sugar level. Radiographs of the chest or abdomen determine the size of the organ and its location.

When assessing a client with pheochromocytoma, a tumor of the adrenal medulla that secretes excessive catecholamine, the nurse is most likely to detect: a blood pressure of 130/70 mm Hg. a blood pressure of 176/88 mm Hg. bradycardia. a blood glucose level of 130 mg/dl.

a blood pressure of 176/88 mm Hg. Pheochromocytoma causes hypertension, tachycardia, hyperglycemia, hypermetabolism, and weight loss. It isn't associated with hypotension, hypoglycemia, or bradycardia.

A nurse is assessing a client with possible Cushing's syndrome. In a client with Cushing's syndrome, the nurse expects to find? thick, coarse skin. deposits of adipose tissue in the trunk and dorsocervical area. weight gain in arms and legs. hypotension.

deposits of adipose tissue in the trunk and dorsocervical area. Because of changes in fat distribution, adipose tissue accumulates in the trunk, face (moon face), and dorsocervical areas (buffalo hump). Hypertension is caused by fluid retention. Skin becomes thin and bruises easily because of a loss of collagen. Muscle wasting causes muscle atrophy and thin extremities.

An incoherent client with a history of hypothyroidism is brought to the emergency department by the rescue squad. Physical and laboratory findings reveal hypothermia, hypoventilation, respiratory acidosis, bradycardia, hypotension, and nonpitting edema of the face and pretibial area. Knowing that these findings suggest severe hypothyroidism, the nurse prepares to take emergency action to prevent the potential complication of: thyroid storm. cretinism. myxedema coma. Hashimoto's thyroiditis.

myxedema coma. Severe hypothyroidism may result in myxedema coma, in which a drastic drop in the metabolic rate causes decreased vital signs, hypoventilation (possibly leading to respiratory acidosis), and nonpitting edema. Thyroid storm is an acute complication of hyperthyroidism. Cretinism is a form of hypothyroidism that occurs in infants. Hashimoto's thyroiditis is a common chronic inflammatory disease of the thyroid gland in which autoimmune factors play a prominent role.

Accidental removal of one or both parathyroid glands can occur during a thyroidectomy. Which of the following is used to treat tetany? Tapazole Synthroid Propylthiouracil (PTU) Calcium gluconate

Calcium gluconate Sometimes in thyroid surgery, the parathyroid glands are removed, producing a disturbance in calcium metabolism. Tetany is usually treated with IV calcium gluconate. Synthroid is used in the treatment of hypothyroidism. PTU and Tapazole are used in the treatment of hyperthyroidism.

A client has been diagnosed with myxedema from long-standing hypothyroidism. What clinical manifestations of this disorder does the nurse recognize are progressing to myxedema coma? Select all that apply. Hyperventilation Hypotension Hypertension Hypoventilation Hypothermia

Hypotension Hypoventilation Hypothermia Severe hypothyroidism is called myxedema. Advanced, untreated myxedema can progress to myxedemic coma. Signs of this life-threatening event are hypothermia, hypotension, and hypoventilation. Hypertension and hyperventilation indicate increased metabolic responses, which are the opposite of what the client would be experiencing.

Vision and visual fields are altered in disorders of which of the following endocrine glands? Pituitary Thyroid Parathyroid Pancreas

Pituitary The pituitary gland is located close to the optic nerves and hence causes pressure on these nerves; thus, changes in the vision and the visual fields may occur.

While assessing a client with hypoparathyroidism, the nurse taps the client's facial nerve and observes twitching of the mouth and tightening of the jaw. The nurse would document this finding as which of the following? Positive Trousseau's sign Positive Chvostek's sign Hyperactive deep tendon reflex Tetany

Positive Chvostek's sign

A nurse explains to a client with thyroid disease that the thyroid gland normally produces: iodine and thyroid-stimulating hormone (TSH). thyrotropin-releasing hormone (TRH) and TSH. TSH, triiodothyronine (T3), and calcitonin. T3, thyroxine (T4), and calcitonin.

T3, thyroxine (T4), and calcitonin. The thyroid gland normally produces thyroid hormone (T3 and T4) and calcitonin. The pituitary gland produces TSH to regulate the thyroid gland. The hypothalamus gland produces TRH to regulate the pituitary gland.

A nurse is assessing a client after a thyroidectomy. The assessment reveals muscle twitching and tingling, along with numbness in the fingers, toes, and mouth area. The nurse should suspect which complication? Laryngeal nerve damage Thyroid storm Hemorrhage Tetany

Tetany Tetany may result if the parathyroid glands are excised or damaged during thyroid surgery. Hemorrhage is a potential complication after thyroid surgery but is characterized by tachycardia, hypotension, frequent swallowing, feelings of fullness at the incision site, choking, and bleeding. Thyroid storm is another term for severe hyperthyroidism — not a complication of thyroidectomy. Laryngeal nerve damage may occur postoperatively, but its signs include a hoarse voice and, possibly, acute airway obstruction.

During an assessment of a patient's functional health pattern, which question by the nurse directly addresses the patient's thyroid function? "Can you describe the amount of stress in your life?" "Have you experienced any headaches or sinus problems?" "Do you experience fatigue even if you have slept a long time?" "Do you have to get up at night to empty your bladder?"

"Do you experience fatigue even if you have slept a long time?" With the diagnosis of hypothyroidism, extreme fatigue makes it difficult for the person to complete a full day's work or participate in usual activities.

A client is being seen in the clinic to receive the results of the lab work to determine thyroid levels. The nurse observes the client's eyes appear to be bulging, and there is swelling around the eyes. What does the nurse know that the correct documentation of this finding is? Periorbital swelling Exophthalmos Bulging eyes Retinal detachment

Exophthalmos Exophthalmos is an abnormal bulging or protrusion of the eyes and periorbital swelling. These findings are not consistent with retinal detachment. Bulging eyes and periorbital swelling are only individual aspects of exophthalmos.