63. A client who has had a stroke begins to exhibit symptoms of syndrome of inappropriate antidiuretic hormone (SIADH). Which laboratory findings should be expected with SIADH? Select all that apply.
63. A client who has had a stroke begins to exhibit symptoms of syndrome of inappropriate antidiuretic hormone (SIADH). Which laboratory findings should be expected with SIADH? Select all that apply.
. Increased urine sodium.
. Increased urine concentration.
. Decreased serum sodium.
. Decreased serum osmolarity.
. Decreased urine sodium.
Test-Taking Tip
Look at the relationship between the serum (i.e., blood) level and urine level—if one goes up, the other goes down.
Content Area: Adult Health, Renal; Integrated Process: Nursing Process, Analysis; Cognitive Level: Analysis; Client Need/Subneed: Physiological Integrity/Reduction of Risk Potential/Laboratory Values
. . . .
Answer 1 is correct because in SIADH urine output is decreased, the urine becomes more concentrated and the urine Na+ increases. Answer 2 is correct because in SIADH urine output is decreased and the osmolarity of the urine increases (i.e., the urine becomes more concentrated). Answer 3 is correct because fluid is retained, causing hemodilution and a low serum sodium. Answer 4 is correct because in SIADH the fluid retention causes hemodilution and a decrease in the serum osmolarity. Answer 5 is incorrect because in SIADH the urine becomes more concentrated and the urine sodium concentration increases.