3.4 Chemical Examination of Urine (Glucose)

Question 1

Normal values for Glucose?

a. 30 mg/dL or 150 mg/day
b. <15 mg/dL
c. <1.0mg/dL

Answer 1

b

Question 2

What is the renal threshold for glucose?

Answer 2

160-180 mg/dL

Question 3

Types of glucosuria:

Failure of PCT reabsorption

a. Hyperglycemia-associate
b. Renal-associated

Answer 3

b

Question 4

Types of glucosuria:

Fanconi syndrome

a. Hyperglycemia-associate
b. Renal-associated

Answer 4

b

Question 5

Test for Glucose:

Reaction: Cu2+ reduced by glucose to Cu+

a. Benedict’s Test
b. CLinitest

Answer 5

a

Question 6

In benedict’s test, → Reaction: Cu2+ reduced by glucose to Cu+ in the form of ___________

Answer 6

cuprous oxide

Question 7

Test for Glucose:

Positive result: Brick red precipitate (4+)

a. Benedict’s Test
b. CLinitest

Answer 7

a

Question 8

Reagent for clinitest includes:

______ sulfate
_______ hydroxide
_______ citrate
Sodium C_______

Answer 8

Copper
Sodium
Sodium
Carbonate

Question 9

What reagent in Clinitest is the source of cupric ions/main reacting agent?

Answer 9

Copper sulfate

Question 10

Test for Glucose:

Reaction between sodium hydroxide and sodium citrate produces heat

a. Benedict’s Test
b. CLinitest

Question 11

Clinitest:
Sodium carbonate reduces room air or oxygen interference

T or F

Answer 11

T

Question 12

False positive For clinitest:

R_____ sugars
A______ acid
Drug metabolites

Answer 12

Reducing

Ascorbic

Question 13

Clinitest:

Remedy for false negative:

Use __ drops instead 5 drops

Answer 13

2

Question 14

Test for Glucose:

(+) result: orange to red

a. Benedict’s Test
b. CLinitest

Answer 14

b

Question 15

Benedicts test: Liquid
Clinitest: Tablet

T or F

Answer 15

T