The nurse is reviewing the laboratory and diagnostic test findings of a client diagnosed with syndrome of inappropriate antidiuretic hormone secretion (SIADH). Which of the following would the nurse expect to find?
- A. Elevated serum sodium levels
- B. Decreased serum osmolarity
- C. Decreased urine sodium levels
- D. Elevated urine calcium levels
Correct Answer: B
Rationale: With SIADH, serum sodium levels and serum osmolarity are decreased. Urine sodium levels and osmolarity are high. Calcium levels are not involved with this disorder.
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A client with acromegaly is complaining of severe headaches. What does the nurse suspect is the cause of the headaches that is related to the acromegaly?
- A. A pituitary tumor
- B. A decrease in release in the growth hormone
- C. A decrease in the glucose level
- D. An increase in cerebral edema
Correct Answer: A
Rationale: When the overgrowth is from a tumor, headaches caused by pressure on the sella turcica, a bony depression in which the pituitary gland rests, are common. There is actually an increase in the secretion of the growth hormone. The headaches would not be caused by decreases in glucose levels. The client does not have cerebral edema.
The nurse is caring for a client who has developed diabetes insipidus. The cause is unknown, and the physician has ordered a diagnostic test to determine if the cause is nephrogenic or neurogenic. What test will the nurse prepare the client for?
- A. Urine specific gravity
- B. Fluid deprivation test
- C. Urine osmolality
- D. Serum osmolality
Correct Answer: B
Rationale: A fluid deprivation test can diagnose diabetes insipidus (DI) and differentiate neurogenic DI from nephrogenic DI. The other tests listed are nonspecific tests that help support diagnosis.
A client with severe hypoparathyroidism is experiencing tetany. What medication, prescribed by the physician for emergency use, will the nurse administer to correct the deficit?
- A. Sodium bicarbonate
- B. Fludrocortisone
- C. Calcium gluconate
- D. Methylprednisolone
Correct Answer: C
Rationale: Tetany and severe hypoparathyroidism are treated immediately by the administration of an IV calcium salt, such as calcium gluconate. The other medications are not effective for the treatment of calcium deficit.
An adult client has been diagnosed with a rare disorder, Simmonds disease (panhypopituitarism), and placed on hormone replacements. What is important for the nurse to educate the client about regarding the medication?
- A. The medication must be taken as ordered until surgery is scheduled to remove the tumor.
- B. Thyroid medication will be administered for the duration of the client's life.
- C. Adhere to the medication schedule and never omit a dose.
- D. The client must take growth hormone for the duration of his life.
Correct Answer: C
Rationale: Teaching the client to adhere to the medication schedule and never to omit a dose is important. The client will have destruction of the pituitary gland so removal will be unnecessary. More than just thyroid medication will be taken. Growth hormone is only administered to children, not adult clients.
The nurse is teaching a client about the dietary restrictions related to a diagnosis of hyperparathyroidism. What foods should the nurse encourage the client to avoid?
- A. Bananas
- B. Chicken livers
- C. Hamburger
- D. Milk
Correct Answer: D
Rationale: Clients with hyperparathyroidism should use a low-calcium diet (fewer dairy products) and drink at least 3 to 4 L of fluid daily to dilute the urine and prevent renal stones from forming. It is especially important that the client drink fluids before going to bed and periodically throughout the night to avoid concentrated urine. Bananas, chicken livers, and hamburgers do not require avoidance. Milk is the highest in calcium content.
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