Edema is a hallmark sign of SIADH caused by fluid shifts into the extracellular space.
Clinical manifestations include concentrated urine output and overhydration.
A patient is recovering from a lung resection because of malignant bronchogenic small cell carcinoma.
His serum sodium is 120 mEq/L and SIADH is suspected.
Which statement is accurate regarding SIADH?
Management includes rapid restoration of serum sodium levels to normal.
SIADH occurs when excessive ADH is released by the anterior pituitary.
SIADH is characterized by diluted urine output and dehydration.
Serum sodium levels typically rise in cases of SIADH.
The Correct Answer is B
Choice A rationale
Rapid restoration of serum sodium levels can lead to central pontine myelinolysis, a severe neurological condition. Thus, management should be gradual.
Choice B rationale
SIADH occurs due to excessive release of antidiuretic hormone (ADH) from the posterior pituitary gland, not the anterior, leading to water retention and hyponatremia.
Choice C rationale
SIADH is characterized by concentrated urine due to water retention and overhydration, not diluted urine output and dehydration.
Choice D rationale
Serum sodium levels typically decrease in SIADH due to water retention and dilutional hyponatremia.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale
Dark stools are not a common side effect of chemotherapy; this symptom typically indicates gastrointestinal bleeding or iron supplements.
Choice B rationale
Flossing 4 times daily can cause gum irritation and bleeding, increasing the risk of infection in immunocompromised clients.
Choice C rationale
Administering an antiemetic before chemotherapy helps to prevent nausea and vomiting, improving the client's comfort and compliance with treatment.
Choice D rationale
Swishing with commercial mouthwash can irritate the mucous membranes; instead, using a gentle saline rinse is recommended.
Correct Answer is {"dropdown-group-1":"A","dropdown-group-2":"A"}
Explanation
Choice A rationale:
The client's low platelet count (90 x 10⁹/L) is a significant risk factor for developing Disseminated Intravascular Coagulation (DIC), a condition characterized by abnormal blood clotting and bleeding. The client's history of cancer and symptoms such as unexplained bruising and fatigue further support this risk.
Choice B rationale:
Hyperkalemia is characterized by high potassium levels, but the client's potassium level is within the normal range (4.1 mmol/L), so this is not a risk factor.
Choice C rationale:
Hyponatremia is a condition of low sodium levels in the blood. The client's sodium level is normal (137 mmol/L), so this is not a risk factor.
Choice D rationale:
Pneumonia is a lung infection, and the client's oxygen saturation is normal (98% on room air), indicating no immediate risk of pneumonia.
Choice E rationale:
Acute nephritic syndrome is a kidney disorder that can cause elevated blood urea nitrogen (BUN) and creatinine levels. The client's BUN is slightly elevated (22 mg/dL), but her creatinine level is normal (1.0 mg/dL), making this less likely.
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