Question 1

What is the normal BUN/Creatinine ratio in adults?

Accepted Answer

10:1 to 20:1

Answer

5:1 to 10:1

Answer

25:1 to 35:1

Answer

15:1 to 30:1

Question 2

A BUN/Creatinine ratio greater than 20:1 suggests which of the following conditions?

Accepted Answer

Possible prerenal azotemia

Answer

Chronic kidney disease

Answer

Postrenal obstruction

Answer

Acute tubular necrosis

Question 3

Which factor is least likely to cause an increased BUN/Creatinine ratio?

Accepted Answer

Dehydration

Answer

Acute kidney injury

Answer

Gastrointestinal bleeding

Answer

High protein diet

Question 4

What does a low BUN/Creatinine ratio, typically less than 10:1, indicate?

Accepted Answer

Possible liver dysfunction or malnutrition

Answer

Prerenal azotemia

Answer

Renal failure

Answer

Dehydration

Question 5

In patients with chronic kidney disease, what is the expected trend for BUN and creatinine levels?

Accepted Answer

Both BUN and creatinine levels increase

Answer

BUN decreases while creatinine increases

Answer

BUN increases while creatinine decreases

Answer

Both BUN and creatinine levels remain normal

Question 6

What does a BUN/Creatinine ratio of 15:1 in a patient suggest?

Accepted Answer

Normal kidney function

Answer

Prerenal azotemia

Answer

Acute kidney injury

Answer

Postrenal obstruction

Question 7

How does increased protein intake affect the BUN/Creatinine ratio?

Accepted Answer

It can increase the ratio

Answer

It always normalizes the ratio

Answer

It has no effect on the ratio

Answer

It decreases the ratio

Question 8

What is the significance of a BUN/Creatinine ratio of 22:1 in a patient with acute kidney injury?

Accepted Answer

It may indicate prerenal causes

Answer

It confirms acute tubular necrosis

Answer

It suggests chronic kidney disease

Answer

It rules out dehydration

Question 9

Which of the following scenarios is most likely to result in a decreased BUN/Creatinine ratio?

Accepted Answer

Liver cirrhosis

Answer

High protein diet

Answer

Gastrointestinal bleeding

Answer

Dehydration

Question 10

What clinical condition is suggested by a BUN/Creatinine ratio of 30:1 in a patient experiencing acute kidney injury?

Accepted Answer

Prerenal azotemia

Answer

Chronic kidney disease

Answer

Postrenal obstruction

Answer

Intrinsic renal failure

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