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 ["A","B","C","D","E"]
Explanation
Choice A rationale
Assessing for neck vein distention helps monitor fluid overload, which is common in Cushing's syndrome due to cortisol's effects on fluid retention.
Choice B rationale
Monitoring for an irregular heart rate is important because cortisol can cause electrolyte imbalances and hypertension, which may affect heart rhythm.
Choice C rationale
Assessing blood glucose levels is essential since Cushing's syndrome can cause hyperglycemia due to cortisol's effects on glucose metabolism.
Choice D rationale
Monitoring for postural hypotension helps manage potential complications from cortisol's effects on blood pressure regulation.
Choice E rationale
Weighing the client daily is important for monitoring fluid retention and weight changes associated with Cushing's syndrome.
Correct Answer is B
Explanation
Choice A rationale
Hyperactive deep tendon reflexes are not associated with thrombocytopenia (low platelet count). Thrombocytopenia primarily affects bleeding and clotting functions rather than neuromuscular reflexes.
Choice B rationale
Spontaneous bleeding is a significant risk with a platelet count of 9,000/mm³, which is critically low. Platelets are essential for blood clotting, and severe thrombocytopenia increases the risk of spontaneous bleeding.
Choice C rationale
Oliguria, or decreased urine output, is not directly related to thrombocytopenia. It may be associated with kidney function issues, but it is not a consequence of low platelet counts.
Choice D rationale
Infection is not directly related to a low platelet count. While patients with severe thrombocytopenia may be at risk for bleeding complications, their susceptibility to infections is more related to their white blood cell counts and immune function.
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