Which assessment data is the nurse likely to observe in a patient with chronic kidney disease?
A) Serum creatinine of 0.7 mg/dL
B) BUN:creatinine ratio of 10:1
C) Serum phosphorous of 3.1 mg/dL
D) Parathyroid hormone of 62 pg/mL
D) Parathyroid hormone of 62 pg/mL
Explanation: A) Serum creatinine becomes elevated with kidney damage; useful in calculating GFR. Normal is 0.6-1.2 mg/dL in males and 0.5-1.1 mg/dL in females.
B) The BUN:creatinine ratio is normally around 10:1.
C) Serum phosphorus becomes elevated as GFR declines; diseased kidneys are unable to excrete excess phosphorus. Normal phosphorus is 2.5-4.5 mg/dL.
D) PTH becomes elevated in response to increasing phosphorus and decreasing calcium. Normal PTH is 10-55 pg/mL.
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