2.3.4 Nonprotein Nitrogen Compounds (Ammonia)

Question 1

Ammonia constitutes 0.2% of plasma NPNs

T or F

Answer 1

T

Question 2

Ammonia is neurotoxic in nature

T or F

Answer 2

T

Question 3

Ammonia is produced from the catabolism of _________

Answer 3

amino acids (deamination)

Question 4

Ammonia is a toxic compound metabolized exclusively in the?

Answer 4

Liver

Question 5

Chemical method for ammonia:

Measurement of pH change as NH3 diffuses though a selective membrane

a. Potentiometric:
b. Potentiometer
c. Potential

Answer 5

a

Question 6

What is the colorimetric dye for Ammonia?

a. Bromothymol blue
b. Bromphenol blue
c. Methylene blue

Answer 6

Bromphenol blue

Question 7

Chemical method of ammonia:

Nesslerization: Yellow
Bethelot: BLue

T or F

Answer 7

T

Question 8

What is the enzymatic method for ammonia?

a. GLDH method
b. ELISA method

Answer 8

A

Question 9

Enzymatic method of Ammonia is measured by ↓ A 340nm of NAD

T or F

Answer 9

T

Question 10

Reference intervals for ammonia is:

19-____ ug/dl

Answer 10

60

Question 11

The clinical significance of Hyperammonemia includes:

• Hepatic failure
• Hepatic cirrhosis
• Reye syndrome
• Urea Cycle enzyme deficiencies

Which of the following does not include?

Answer 11

None