Nokea
The nurse is caring for a patient with inappropriate antidiuretic hormone (SIADH) due to a head trauma who is receiving a hypertonic saline IV solution to counteract hyponatremia. The nurse will expect the saline solution to be administered until the patient's serum sodium reaches which of the following levels?
- A. 120 mmol/L.
- B. 130 mmol/L.
- C. 128 mmol/L.
- D. 138 mmol/L.
Correct Answer: C
Rationale: If the patient is hyponatremic, hypertonic saline may be administered until the serum sodium level reaches at least 130 mmol/L. Hypernatremia is evident with a sodium level of 168 mmol/L.
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The nurse is assessing a patient who has just arrived in the postanesthesia recovery unit (PACU) after a thyroidectomy and obtains these data. Which of the following information is most important to communicate to the surgeon?
- A. The patient is sleepy and hard to arouse.
- B. The patient has increasing swelling of the neck.
- C. The patient is complaining of 7/10 incisional pain.
- D. The patient's cardiac monitor shows a heart rate of 112.
Correct Answer: B
Rationale: The neck swelling may lead to respiratory difficulty, and rapid intervention is needed to prevent airway obstruction. The incisional pain should be treated but is not unusual after surgery. A heart rate of 112 is not unusual in a patient who has been hyperthyroid and has just arrived in the PACU from surgery. Sleepiness in the immediate postoperative period is expected.
The nurse is caring for a patient who has had a transsphenoidal resection of a pituitary tumour. Which of the following nursing actions should be included in the postoperative plan of care?
- A. Monitor urine output every hour.
- B. Palpate extremities for dependent edema.
- C. Check hematocrit hourly for first 12 hours.
- D. Obtain continuous pulse oximetry for 24 hours.
Correct Answer: A
Rationale: After pituitary surgery, the patient is at risk for diabetes insipidus caused by cerebral edema and 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.
A few hours after returning to the surgical nursing unit, a patient who has undergone a subtotal thyroidectomy develops laryngeal stridor and a cramp in the right hand. Which of the following actions should the nurse anticipate implementing first?
- A. Infuse IV calcium gluconate.
- B. Suction the patient's airway.
- C. Prepare for endotracheal intubation.
- D. Assist with emergency tracheotomy
Correct Answer: A
Rationale: 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 tracheotomy may be needed if the calcium does not resolve the stridor. Suctioning will not correct the stridor.
The nurse is caring for a patient with a diagnosis of Cushing's syndrome. Which of the following data should the nurse anticipate finding during the admission assessment?
- A. Persistently low blood pressure
- B. Bronzed appearance of the skin
- C. Decreased axillary and pubic hair
- D. Purplish red streaks on the abdomen
Correct Answer: D
Rationale: Purplish-red striae on the abdomen are a common clinical manifestation of Cushing's syndrome. Hypotension and bronzed-appearing skin are manifestations of Addison's disease. Decreased axillary and pubic hair occur with androgen deficiency.
The nurse is providing discharge teaching for a patient who had a hypophysectomy as result of a pituitary adenoma. Which of the following information should the nurse include?
- A. Oral corticosteroids as a lifelong treatment
- B. Chemotherapy to prevent recurrence of the tumour
- C. Insulin use to maintain blood glucose at normal levels
- D. Sodium restriction to prevent fluid retention and hypertension
Correct Answer: A
Rationale: Antidiuretic hormone (ADH), cortisol, and thyroid hormone replacement will be needed for life after hypophysectomy. Without the effects of adrenocorticotropic hormone (ACTH) and cortisol, the blood glucose and serum sodium will be low unless cortisol is replaced. An adenoma is a benign tumour, and chemotherapy will not be needed.