Acute Kidney Injury

Question 1

T/F: Use FENa rather than FEUrea when someone is on diuretics.

Answer 1

False. Vice versa

Question 2

Pre-renal or intrinsic ATN?

BUN/Cr = 20:1

Answer 2

Pre-renal

Question 3

Pre-renal or intrinsic ATN?
Uosm = 300-350
Spec. gravity = 1.010

Answer 3

Intrinsic ATN

Question 4

Pre-renal or intrinsic ATN?

BUN/Cr = 10:1

Answer 4

Intrinsic ATN

Question 5

Pre-renal or intrinsic ATN?
Uosm = > 500
Spec. gravity = >1.020

Answer 5

Pre-renal

Question 6

Pre-renal or intrinsic ATN?

UrineNa > 40 meq/L

Answer 6

intrinsic ATN

Question 7

Pre-renal or intrinsic ATN?
FeNa: >2%
FeUrea: >55%

Answer 7

Instrinsic ATN

Question 8

Name the disease:

Muddy, brown, granular casts

Answer 8

ATN

Question 9

Free myoglobin and hemoglobin are nephrotoxic in what disease?

Answer 9

Acute tubular Necrosis

Question 10

Name the disease:

WBC casts

Answer 10

Acute interstitial nephritis

Question 11

T/F: Acute interstitial nephritis is most often caused by inflammatory conditions.

Answer 11

False. Most often drug induced

PCN, allopurinol, NSAIDs, PPI

Question 12

Name the disease:

RBC casts

Answer 12

Acute Glomerulonephritis

Question 13

Name the 3 most common causes of AKI

Answer 13

Prerenal
Acute tubular necrosis
Obstruction

Question 14

Pre-renal or intrinsic ATN?
FeNa less than 1 percent
FeUrea less than 35 percent

Answer 14

Pre-renal

Question 15

Pre-renal or intrinsic ATN?

UrineNa less than 20 percent

Answer 15

Pre-renal