Nokea
Which of the following information obtained by the nurse when caring for a patient who has diabetes insipidus (DI) is most important to report to the health care provider?
- A. History of a recent head injury
- B. Confusion and lethargy
- C. Urine output of 400 mL/hour
- D. Urine specific gravity is 1.003
Correct Answer: B
Rationale: The patient's confusion and lethargy may indicate hypernatremia and should be addressed quickly. In addition, patients with DI compensate for fluid losses by drinking copious amounts of fluids, but a patient who is lethargic will be unable to drink enough fluids and will become hypovolemic. A high urine output, low urine specific gravity, and history of a recent head injury are consistent with diabetes insipidus, but they do not require immediate nursing action to avoid life-threatening complications.
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A patient is being treated with a medication to block the effect of antidiuretic hormone to control the symptoms of syndrome of inappropriate antidiuretic hormone (SIADH). Which of the following findings indicates that the medication is effective?
- A. Decreased peripheral edema
- B. Increased weight
- C. Increased urine specific gravity
- D. Increased urinary output
Correct Answer: D
Rationale: Agents that block the effect of ADH on the renal tubules may be prescribed, thereby allowing more dilution of urine leading to an increased 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.
The nurse is admitting a patient with Graves' disease to the emergency department in thyrotoxic crisis. Which of these prescribed medications should the nurse administer first?
- A. Propranolol
- B. Propylthiouracil
- C. Methimazole
- D. Iodine
Correct Answer: A
Rationale: β-Adrenergic blockers work rapidly to decrease the cardiovascular manifestations of thyroid storm. The other medications take days to weeks to have an impact on thyroid function.
The nurse is caring for a patient who had radical neck surgery and develops hypoparathyroidism. Which of the following information should the nurse include in the teaching plan?
- A. Use of bisphosphonates to reduce bone demineralization.
- B. Include whole grains in the diet to prevent constipation.
- C. Take calcium supplementation to normalize serum calcium levels.
- D. Ensure a high fluid intake to decrease risk for nephrolithiasis.
Correct Answer: C
Rationale: Oral calcium supplements are used to maintain the serum calcium in normal range and prevent the complications of hypocalcemia. Whole-grain foods decrease calcium absorption and will not be recommended. Bisphosphonates will lower serum calcium levels further by preventing calcium from being reabsorbed from bone. Kidney stones are not a complication of hypoparathyroidism and low calcium levels.
The nurse is caring for a patient with hypertension who is diagnosed with a pheochromocytoma. Which of the following findings should the nurse monitor in the patient?
- A. Flushing
- B. Headache
- C. Bradycardia
- D. Hypoglycemia
Correct Answer: B
Rationale: The classic clinical manifestations of pheochromocytoma are hypertension, tachycardia, severe pounding headache, diaphoresis, and abdominal or chest pain. Elevated blood glucose may also occur because of sympathetic nervous system stimulation. Bradycardia and flushing would not be expected.
Which of the following findings for a patient who takes levothyroxine to treat hypothyroidism indicates that the nurse should contact the health care provider before administering the medication?
- A. Increased thyroxine (T4) level
- B. Blood pressure 102/62 mm Hg
- C. Distant and difficult to hear heart sounds
- D. Elevated thyroid stimulating hormone level
Correct Answer: A
Rationale: An increased thyroxine level indicates the levothyroxine dose needs to be decreased. The other data are consistent with hypothyroidism and the nurse should administer the Synthroid.