Renal Labs

Question 1

Definition of Chronic Kidney Disease

Answer 1

GFR <60 for over 3 months

Question 2

Increased plasma BUN or Creatinine indicates?

Answer 2

Decreased GFR

Question 3

BUN/Creatinine Ratio >15 indicates? Why?

Answer 3

Pre or Post-Renal decrease in GFR.

RAS is activated by decreased GFR increasing Urea reabsorption on top of the decreased Urea and Creatinine excretion.

Question 4

FENa <1% (Normal) with decreased GFR?

Answer 4

Pre-renal cause

Question 5

FENa >2% with decreased GFR?

Answer 5

Acute Tubular Necrosis

Question 6

Urine Dipstick detects what?

Answer 6

Only detects albumin in urine

Question 7

Acid Precipitation detects what?

Answer 7

Albumin and/or Globins in urine

Question 8

Proteinuria with mostly albuminurea?

Answer 8

Glomerular cause

Question 9

Proteinuria with mostly globinurea?

Answer 9

Tubular cause

Question 10

ACE inhibitor effect on creatinine clearance and GFR?

Answer 10

Increases creatinine, but is actually used as treatment for chronic kidney disease