NPN

Question 1

It is used to monitor renal fxn

Answer 1

NPN

Question 2

Nessler’s Reagent produces

Answer 2

Yellow color

Question 3

Has the highest concentration in the blood

Answer 3

Urea

Question 4

Major excretory product of protein metabolism

Answer 4

Urea

Question 5

Urea is form in the

Answer 5

Liver

Question 6

How is urea reported

Answer 6

Nitrogen concentration rather than urea concentration

Question 7

Formula to get urea concentration

Answer 7

Urea N x 2.14

Question 8

It inhibits urease

Answer 8

Citrate and fluoride

Question 9

Elevated urea in the blood accompanied by renal failure

Answer 9

Uremia

Question 10

Elevated urea in the blood

Answer 10

Azotemia

Question 11

Urea is produced from

Answer 11

Protein metabolism

Question 12

Decrease plasma urea

Answer 12

Low protein intake
Severe liver disease

Question 13

BUN or urea N/ creatinine ratio

Answer 13

10:1 to 20:1

Question 14

High BUN or urea N/ creatinine ratio (>20:1) is associated with

Answer 14

Prerenal and post-renal

Question 15

Low BUN or urea N/ creatinine ratio (<10:1) is associated with

Answer 15

Decreased urea production

Question 16

Proposed reference method for urea and uric acid

Answer 16

IDMS

Question 17

_____ is converted into uric acid, normally in the liver

Answer 17

Purines

Question 18

All uric acid in plasma is present as

Answer 18

Monosodium urates

Question 19

The product of catabolism of the purine nucleic acid

Answer 19

Uric acid

Question 20

Anticoagulant of choice for uric acid

Answer 20

Heparin

Question 21

Increased plasma uric acid conct

Answer 21

Hyperuricemia

Question 22

Decreased plasma uric acid concentration

Answer 22

Hypouricemia

Question 23

Complete deficiency of hypoxanthine-guanine phosphoribosyltransferase

Answer 23

Lesch Nyhan Syndrome

Question 24

Creatinine concentration is _______ to muscle mass

Answer 24

Directly proportional

Question 25

Plasma creatinine is _______ related to GFR

Answer 25

Inversely

Question 26

Creatinine is synthesized primarily in _______ from _____,______,_______

Answer 26

Liver;
Glycine, arginine, methionine

Question 27

Assess kidney fxn

Answer 27

Creatinine measurement

Question 28

Increased plasma CREATININE

Answer 28

abnormal renal fxn

Question 29

Increased plasma CREATINE

Answer 29

Muscle disease

Question 30

Creatinine+ alkaline picrate=

Answer 30

Red orange chromogen

Question 31

Produced in the deamination of AA during protein metabolism and by bacterial metabolism in the lumen of yhe intestine

Answer 31

Ammonia

Question 32

Most ammonia in the blood exist as

Answer 32

Ammonium ion

Question 33

Spx used for ammonia

Answer 33

Venous blood

Question 34

Source of ammonia contamination

Answer 34

Cigarette smoking

Question 35

Decreased in absorbance at 340 nm as NADPH is consumed

Answer 35

Glutamate dehydrogenase