B.U.N. pg 944

Question 1

What does BUN stand for?

Answer 1

Blood urea nitrogen

Question 2

What type of test is BUN?

Answer 2

blood

Question 3

What are the normal findings for BUN? Adult

Answer 3

Adult 10-20mg/dl

Question 4

Where is urea formed?

Answer 4

fomed by the liver. It is an end product of protein metabolism

Question 5

Protein is ingested…….what happens?

Answer 5

protein is broken down into amino acids. the liver then catabolizes the aa making ammonia. the ammonia is combined to form urea, then deposited into blood and sent to kidneys for excretion

Question 6

BUN is directly related to the metobolic function of?

Answer 6

the liver and kidney.

Question 7

BUN findings serve as an index for wht?

Answer 7

the function of the liver and kidneys

Question 8

nearly all renal diseases cause _____ excretion of urea, which causes the blood urea levels to _____ _____ normal.

Answer 8

early all renal diseases cause inadequate excretion of urea, which causes the blood urea levels to rise above normal.

Question 9

What role does hydration play on BUN?

Answer 9

increased in dehydration and increased in overhydration.

Question 10

Patients with severe liver disease will have ______ BUN.

Answer 10

decreased

Question 11

BUN is interpreted in conjunction c what other test?

Answer 11

Creatinine

Question 12

What will looking at BUN and creatinine show you?

Answer 12

it is a good measure of kidney and liver function

Question 13

What is the BUN/creatinine ratio referred to as?

Answer 13

Renal function study

Question 14

What are some interfering factors for the BUN test?

Answer 14

• Changes in protein intake
• Overhydration or dehydration
  -GI bleeding can cause increased BUN
  -