Lewis Ch 49: Endocrine Problems Flashcards
A 40-year-old patient with suspected acromegaly is seen at the clinic. To assist in making the diagnosis, which question should the nurse ask?
a. “Have you had a recent head injury?”
b. “Do you have to wear larger shoes now?”
c. “Is there a family history of acromegaly?”
d. “Are you experiencing tremors or anxiety?”
ANS: B
Acromegaly causes an enlargement of the hands and feet. Head injury and family history are not risk factors for acromegaly. Tremors and anxiety are not clinical manifestations of acromegaly.
A patient is scheduled for transsphenoidal hypophysectomy to treat a pituitary adenoma. What should the nurse include in preoperative teaching?
a. Cough and deep breathe every 2 hours postoperatively.
b. Remain on bed rest for the first 48 hours postoperatively.
c. Avoid brushing teeth for at least 10 days after the surgery.
d. You will be positioned flat with a cervical collar after surgery.
ANS: C
To avoid disruption of the suture line, the patient should avoid brushing the teeth for 10 days after surgery. It is not necessary to remain on bed rest after this surgery. Coughing is discouraged because it may cause leakage of cerebrospinal fluid (CSF) from the suture line. The head of the bed should be elevated 30 degrees to reduce pressure on the sella turcica and decrease the risk for headaches. A cervical collar is not needed.
The nurse is planning postoperative care for a patient who is being admitted to the surgical unit from the recovery room after transsphenoidal resection of a pituitary tumor. Which nursing action should be included?
a. Palpate extremities for edema.
b. Measure urine volume every hour.
c. Check hematocrit every 2 hours for 8 hours.
d. Monitor continuous pulse oximetry for 24 hours.
ANS: B
After pituitary surgery, the patient is at risk for diabetes insipidus caused by cerebral edema. Monitoring of urine output and urine specific gravity is essential. Hemorrhage is not a common problem. There is no need to check the hematocrit hourly. The patient is at risk for dehydration, not volume overload. The patient is not at high risk for problems with oxygenation, and continuous pulse oximetry is not needed.
The nurse is assessing a male patient diagnosed with a pituitary tumor causing panhypopituitarism. Which assessment finding is consistent with panhypopituitarism?
a. High blood pressure
b. Decreased facial hair
c. Elevated blood glucose
d. Intermittent tachycardia
ANS: B
Changes in male secondary sex characteristics such as decreased facial hair, testicular atrophy, diminished spermatogenesis, loss of libido, impotence, and decreased muscle mass are associated with decreases in follicle-stimulating hormone (FSH) and luteinizing hormone (LH). Fasting hypoglycemia and hypotension occur in panhypopituitarism because of decreases in adrenocorticotropic hormone (ACTH) and cortisol. Bradycardia is due to the decrease in thyroid-stimulating hormone (TSH) and thyroid hormones associated with panhypopituitarism.
Which information will the nurse include when teaching a 50-year-old male patient about somatropin (Genotropin)?
a. The medication will be needed for 3 to 6 months.
b. Inject the medication subcutaneously every day.
c. Blood glucose levels may decrease when taking the medication.
d. Stop taking the medication if swelling of the hands or feet occurs.
ANS: B
Somatropin is injected subcutaneously daily, preferably in the evening. The patient will need to continue on somatropin for life. If swelling or other common adverse effects occur, the health care provider should be notified. Growth hormone will increase blood glucose levels.
Which finding indicates to the nurse that demeclocycline is effective for a patient with syndrome of inappropriate antidiuretic hormone (SIADH)?
a. Weight has increased.
b. Urinary output is increased.
c. Peripheral edema is increased.
d. Urine specific gravity is increased.
ANS: B
Demeclocycline blocks the action of antidiuretic hormone (ADH) on the renal tubules and increases urine output. An increase in weight or an increase in urine specific gravity indicates that the SIADH is not corrected. Peripheral edema does not occur with SIADH. A sudden weight gain without edema is a common clinical manifestation of this disorder.
Which patient statement indicates to the nurse that additional instruction is needed for a patient with chronic syndrome of inappropriate antidiuretic hormone (SIADH)?
a. “I should weigh myself daily and report sudden weight loss or gain.”
b. “I need to shop for foods low in sodium and avoid adding salt to food.”
c. “I need to limit my fluid intake to no more than 1 quart of liquids a day.”
d. “I should eat foods high in potassium because diuretics cause potassium loss.”
ANS: B
Patients with SIADH are at risk for hyponatremia, and a sodium supplement may be prescribed. The other patient statements are correct and indicate successful teaching has occurred.
A 56-year-old patient who is disoriented and reports a headache and muscle cramps is hospitalized with syndrome of inappropriate antidiuretic hormone (SIADH). Which initial laboratory result should the nurse expect?
a. Elevated hematocrit
b. Decreased serum sodium
c. Increased serum chloride
d. Low urine specific gravity
ANS: B
When water is retained, the serum sodium level will drop below normal, causing the clinical manifestations reported by the patient. The hematocrit will decrease because of the dilution caused by water retention. Urine will be more concentrated with a higher specific gravity. The serum chloride level will usually decrease along with the sodium level.
Which problem should the nurse anticipate for a patient admitted to the hospital with diabetes insipidus?
a. Generalized edema
b. Fluid volume overload
c. Disturbed sleep pattern
d. Decreased gas exchange
ANS: C
Nocturia occurs because of the polyuria caused by diabetes insipidus. Edema, excess fluid volume, and fluid retention are not expected.
Which information will the nurse teach a patient who has been newly diagnosed with Graves’ disease?
a. Exercise is contraindicated to avoid increasing metabolic rate.
b. Restriction of iodine intake is needed to reduce thyroid activity.
c. Antithyroid medications may take several months for full effect.
d. Surgery will eventually be required to remove the thyroid gland.
ANS: C
Medications used to block the synthesis of thyroid hormones may take 2 to 3 months before the full effect is seen. Large doses of iodine are used to inhibit the synthesis of thyroid hormones. Exercise using large muscle groups is encouraged to decrease the irritability and hyperactivity associated with high levels of thyroid hormones. Radioactive iodine is the most common treatment for Graves’ disease, although surgery may be used.
A patient who had a subtotal thyroidectomy earlier today develops laryngeal stridor and a cramp in the right hand upon returning to the surgical nursing unit. Which collaborative action will the nurse anticipate next?
a. Plan for emergency tracheostomy.
b. Administer IV calcium gluconate.
c. Prepare for endotracheal intubation.
d. Begin thyroid hormone replacement.
ANS: B
The patient’s clinical manifestations of stridor and cramping are consistent with tetany caused by hypocalcemia resulting from damage to the parathyroid glands during surgery. Endotracheal intubation or tracheostomy may be needed if the calcium does not resolve the stridor. Thyroid hormone replacement may be needed eventually but will not improve the symptoms of hypocalcemia.
Which nursing action will be included in the plan of care for a patient with Graves’ disease who has exophthalmos?
a. Place cold packs on the eyes to relieve pain and swelling.
b. Elevate the head of the patient’s bed to reduce periorbital fluid.
c. Apply alternating eye patches to protect the corneas from irritation.
d. Teach the patient to blink every few seconds to lubricate the corneas.
ANS: B
The patient should sit upright as much as possible to promote fluid drainage from the periorbital area. With exophthalmos, the patient is unable to close the eyes completely to blink. Lubrication of the eyes, rather than eye patches, will protect the eyes from developing corneal scarring. The swelling of the eye is not caused by excessive blood flow to the eye, so cold packs will not be helpful.
A patient who has hyperthyroidism is treated with radioactive iodine (RAI). What information should the nurse include in discharge teaching?
a. Take radioactive precautions with all body secretions.
b. Symptoms of hyperthyroidism should be relieved in about a week.
c. Symptoms of hypothyroidism will occur as the RAI therapy takes effect.
d. Discontinue the antithyroid medications that were taken before the RAI therapy.
ANS: C
There is a high incidence of post radiation hypothyroidism after RAI, and the patient should be monitored for symptoms of hypothyroidism. RAI has a delayed response, with the maximum effect not seen for 2 to 3 months, and the patient will continue to take antithyroid medications during this time. The therapeutic dose of radioactive iodine is low enough that no radiation safety precautions are needed.
Which nursing assessment of a 70-year-old patient is most important to make during initiation of thyroid replacement with levothyroxine (Synthroid)?
a. Fluid balance
b. Apical pulse rate
c. Nutritional intake
d. Orientation and alertness
ANS: B
In older patients, initiation of levothyroxine therapy can increase myocardial oxygen demand and cause angina or dysrhythmias. The medication also is expected to improve mental status and fluid balance and will increase metabolic rate and nutritional needs, but these changes will not result in potentially life-threatening complications.
An 82-year-old patient in a long-term care facility is newly diagnosed with hypothyroidism. The nurse will need to consult with the health care provider before administering the prescribed
a. Docusate (Colace)
b. Ibuprofen (Motrin)
c. Diazepam (Valium)
d. Cefoxitin (Mefoxin)
ANS: C
Worsening of mental status and myxedema coma can be precipitated using sedatives, especially in older adults. The nurse should discuss the use of diazepam with the health care provider before administration. The other medications may be given safely to the patient.
A patient who was admitted with myxedema coma and diagnosed with hypothyroidism is improving. Discharge is expected to occur in 2 days. Which teaching strategy is likely to result in effective patient self-management at home?
a. Delay teaching until closer to discharge date.
b. Provide written reminders of information taught.
c. Offer multiple options for management of therapies.
d. Ensure privacy for teaching by asking the family to leave.
ANS: B
Written instructions will be helpful to the patient because initially the hypothyroid patient may be unable to remember to take medications and other aspects of self-care. Because the treatment regimen is complex, teaching should be started well before discharge. Family members or friends should be included in teaching because the hypothyroid patient is likely to forget some aspects of the treatment plan. A simpler regimen will be easier to understand until the patient is euthyroid.
A patient with primary hyperparathyroidism has a serum phosphorus level of 1.7 mg/dL (0.55 mmol/L) and calcium of 14 mg/dL (3.5 mmol/L). Which nursing action should be included in the plan of care?
a. Restrict the patient to bed rest.
b. Encourage 4000 mL of fluids daily.
c. Institute routine seizure precautions.
d. Assess for positive Chvostek’s sign.
ANS: B
The patient with hypercalcemia is at risk for kidney stones, which may be prevented by a high fluid intake. Seizure precautions and monitoring for Chvostek’s or Trousseau’s sign are appropriate for hypocalcemic patients. The patient should engage in weight-bearing exercise to decrease calcium loss from bone.
A patient develops carpopedal spasms and tingling of the lips following a parathyroidectomy. Which action will provide the patient with rapid temporary relief from the symptoms?
a. Start the PRN O2 at 2 L/min per cannula.
b. Administer the prescribed muscle relaxant.
c. Have the patient rebreathe from a paper bag.
d. Stretch the muscles with passive range of motion.
ANS: C
The patient’s symptoms suggest mild hypocalcemia. The symptoms of hypocalcemia will be temporarily reduced by having the patient breathe into a paper bag, which will raise the PaCO2 and create a more acidic pH. Applying as-needed O2 or range of motion will have no impact on the ionized calcium level. Calcium supplements will be given to normalize calcium levels quickly, but oral supplements will take time to be absorbed.