A nurse is reviewing urinary laboratory results. Which finding will cause the nurse to follow up?
a. Protein level of 2 mg/100 mL
b. Urine output of 80 mL/hr
c. Specific gravity of 1.036
d. pH of 6.4
ANS: C
Dehydration, reduced renal blood flow, and increase in antidiuretic hormone secretion elevate specific gravity. Normal specific gravity is 1.0053 to 1.030. An output of 30 mL/hr or less for 2 or more hours would be cause for concern; 80 mL/hr is normal. The normal pH of urine is between 4.6 and 8.0. Protein up to 8 mg/100 mL is acceptable; however, values in excess of this could indicate renal disease.
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