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A 78-year-old woman is found to have a first
morning urine specific gravity of 1.010.
Assuming that she has not had anything to
drink since yesterday evening, this is most
indicative of which of the following?
(A) acute pyelonephritis
(B) advanced renal failure
© diabetic glomerulosclerosis
(D) hyperlipidemia
(E) normal kidney function

@saintdizzy, can you please post the answers to the questions you posted earlier.

is it normal kidney function since 1.010 is within normal specific gravity range

the only thing I am worried about is that she is 78 y.o., and age related decrease in the function of the kidneys are usually present.

BB

@neha321, why b?

if she hasn't drink anything since yesterday ,then her urine SP should be high, but here her urine SP still lower edge of normal which means her concentrating mechanisms were damaged. we know that tubules takes the job of concentrating of urine.

option C & D look like related to glomerular damage, E can't be either because normal kidneys increases the SP of urine here . finally A , here there is a chance for A but there are no symptoms of acute pyelonephritis ( pain, fever)

SP oF urine decreases
renal failure, pyelonephritis, diabetes insipidus, acute tubular necrosis, interstitial nephritis.