Intro Urinalysis: Specimen Preservation

Question 1

Most routinely used method of preservation is

Answer 1

Refrigeration (2to8degree Celsius)

Question 2

Examples of chemical preservatives:

Answer 2

Thymol
Formalin
Acid
Sodium carbonate
Sodium fluoride
Phenol
Toluene

Question 3

Ideal Preservative

Answer 3

Bactericidal
Urease
Form elements

Question 4

Refrigeration
Advantage:
Disadvantages: increase specific gravity
Use: storage of test

Answer 4

Acceptable for routine 24 hours and inexpensive

Question 5

Refrigeration
Advantage: inexpensive and acceptable routine of 24 hour
Disadvantages:
Use: storage of test

Answer 5

increase specific gravity

Question 6

Refrigeration
Advantage: inexpensive and acceptable routine of 24 hour
Disadvantages: increase specific gravity
Use:

Answer 6

storage of test

Question 7

Thymol
Advantage:
Disadvantages: acid precipitation
Use:sediment preservation

Answer 7

Preserve glucose

Question 8

Thymol
Advantage: preserve glucose
Disadvantages:
Use:sediment preservation

Answer 8

acid precipitation

Question 9

Thymol
Advantage: preserve glucose
Disadvantages: acid precipitation
Use:

Answer 9

sediment preservation

Question 10

Formalin
Advantage:
Disadvantages: reducing agents
Use: cytology

Answer 10

cellular preservatives

Question 11

Formalin
Advantage: cellular preservatives
Disadvantages:
Use: cytology

Answer 11

reducing agents

Question 12

Formalin
Advantage: cellular preservatives
Disadvantages: reducing agents
Use:

Answer 12

cytology

Question 13

Color
Observation: darken or changes
Mechanism:

Answer 13

Bilirubin

Question 14

Color
Observation:
Mechanism: oxidation bilirubin

Answer 14

darken or changes