The nurse is reviewing the medical record of a pediatric client suspected to have acute glomerulonephritis. What finding should the nurse expect to note in a client with this diagnosis?

A. Decreased urine specific gravity is not typical; rather, increased specific gravity may be noted due to concentrated urine. B. Hypotension is not usually associated with acute glomerulonephritis; hypertension is more common due to fluid retention and renal impairment. C. A positive antistreptolysin O titer indicates a recent streptococcal infection, which is often the cause of post-streptococcal glomerulonephritis. D. Elevated blood urea nitrogen (BUN) and creatinine levels are expected due to impaired kidney function, not low levels.