Aubf Specimen Collection an der Our Lady Of Fatima University | Karteikarten & Zusammenfassungen

Lernmaterialien für Aubf specimen collection an der Our Lady of Fatima University

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TESTE DEIN WISSEN
Preserves glucose and sediments well

But interferes with acid-precipitation tests for protein


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TESTE DEIN WISSEN
Thymol
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TESTE DEIN WISSEN
Preserves protein and formed elements well

Does not interfere with routine analysis other than pH

Can precipitate crystals when used in large amounts

Keeps pH at about 6.0


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TESTE DEIN WISSEN
Boric Acid
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TESTE DEIN WISSEN
Excellent sedimentation preservative

Acts as a reducing agent, interfering with chemical tests for
glucose, blood, leukocyte, esterase, and copper reduction

In using Formalin, rinse specimen container with formalin to
preserve cells and cast
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TESTE DEIN WISSEN
 Formalin (Formaldehyde
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TESTE DEIN WISSEN
Does not interfere with routine tests

Float on surface of specimens and clings to pipettes and
testing materials
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TESTE DEIN WISSEN
Toluene
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TESTE DEIN WISSEN
Prevents glycolysis
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TESTE DEIN WISSEN
 Sodium Fluoride
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TESTE DEIN WISSEN
 Does not interfere with routine tests

Causes an odor change

Use 1 drop per ounce of specimen

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TESTE DEIN WISSEN
Phenol
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TESTE DEIN WISSEN
Convenient when refrigeration not possible

Have controlled concentration to minimize interference
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TESTE DEIN WISSEN
 Commercial Preservative Tablets
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TESTE DEIN WISSEN
Contains collection cup, transfer straw, culture and sensitivity
preservative (C&S) tube, or UA tube
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TESTE DEIN WISSEN
 Urine Collection Kits
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TESTE DEIN WISSEN
Commercially preferred transport tube

Sample stable at room temperature (RT) for 48hrs

Preserves bacteria

Decreases pH; do not use if urine is below minimum fill line

Preservative is boric acid and may not be used for UA
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TESTE DEIN WISSEN
. Gray C&S Tube
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TESTE DEIN WISSEN
Use on automated instruments

Must refrigerate within 2 hours

Round or conical bottom

Has no preservative


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TESTE DEIN WISSEN
K. Yellow Plain UA Tube
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TESTE DEIN WISSEN
Stable for 72hrs at room temperature; instrument-compatible

Bilirubin and urobilinogen may be decreased if specimen
may if specimen is exposed to light and left at room
temperature

Preservative is sodium propionate; conical bottom


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TESTE DEIN WISSEN
 Cherry Red / Yellow Top Tube
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TESTE DEIN WISSEN
 Most routinely used method of preservation

Keep temperature in 2⁰C to 8⁰C only

Decreases bacterial growth and metabolism

If the urine is to be cultured, the specimen must be
refrigerated even during transport (put the specimen in ice
bag)*

Disadvantage: Can increase the specific gravity, precipitates
amorphous phosphates and urates which may obscure the
microscopic sediment analysis*

From the refrigerator, make sure to set the specimen at room
temperature before testing
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TESTE DEIN WISSEN
Refrigeration
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Q:
Preserves glucose and sediments well

But interferes with acid-precipitation tests for protein


A:
Thymol
Q:
Preserves protein and formed elements well

Does not interfere with routine analysis other than pH

Can precipitate crystals when used in large amounts

Keeps pH at about 6.0


A:
Boric Acid
Q:
Excellent sedimentation preservative

Acts as a reducing agent, interfering with chemical tests for
glucose, blood, leukocyte, esterase, and copper reduction

In using Formalin, rinse specimen container with formalin to
preserve cells and cast
A:
 Formalin (Formaldehyde
Q:
Does not interfere with routine tests

Float on surface of specimens and clings to pipettes and
testing materials
A:
Toluene
Q:
Prevents glycolysis
A:
 Sodium Fluoride
Mehr Karteikarten anzeigen
Q:
 Does not interfere with routine tests

Causes an odor change

Use 1 drop per ounce of specimen

A:
Phenol
Q:
Convenient when refrigeration not possible

Have controlled concentration to minimize interference
A:
 Commercial Preservative Tablets
Q:
Contains collection cup, transfer straw, culture and sensitivity
preservative (C&S) tube, or UA tube
A:
 Urine Collection Kits
Q:
Commercially preferred transport tube

Sample stable at room temperature (RT) for 48hrs

Preserves bacteria

Decreases pH; do not use if urine is below minimum fill line

Preservative is boric acid and may not be used for UA
A:
. Gray C&S Tube
Q:
Use on automated instruments

Must refrigerate within 2 hours

Round or conical bottom

Has no preservative


A:
K. Yellow Plain UA Tube
Q:
Stable for 72hrs at room temperature; instrument-compatible

Bilirubin and urobilinogen may be decreased if specimen
may if specimen is exposed to light and left at room
temperature

Preservative is sodium propionate; conical bottom


A:
 Cherry Red / Yellow Top Tube
Q:
 Most routinely used method of preservation

Keep temperature in 2⁰C to 8⁰C only

Decreases bacterial growth and metabolism

If the urine is to be cultured, the specimen must be
refrigerated even during transport (put the specimen in ice
bag)*

Disadvantage: Can increase the specific gravity, precipitates
amorphous phosphates and urates which may obscure the
microscopic sediment analysis*

From the refrigerator, make sure to set the specimen at room
temperature before testing
A:
Refrigeration
Aubf specimen collection

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