ERYTHROCYTE SEDIMENTATION RATE Flashcards

1
Q

Measures the degree of settling of RBCs in plasma in anticoagulated whole blood

A

ERYTHROCYTE SEDIMENTATION RATE

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2
Q

is the distance in millimeters that the RBCs fall in 1 hour

A

ERYTHROCYTE SEDIMENTATION RATE

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3
Q

ESR is non-specific measurement used to detect and monitor ________

A

Inflammatory responses

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4
Q

Most important factor affecting ESR:

A

Fibrinogen Factor

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5
Q

↑ Fibrinogen (inflammation) =

A

↑ ESR

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6
Q

Anticoagulant for ESR

A

EDTA/ 0.105m Na citrate

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7
Q
  • Length = 300 mm
  • Ext bore diameter = 5.5 mm
  • Int bore diameter = 2.5 mm
  • Graduation – 0-200 mm
A

Westergren Method

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8
Q
  • Length = 115 mm
  • Int bore diameter = 3 mm
  • Graduation – 0-100 mm
A

Wintrobe Method

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9
Q

Acute/Chronic infections

A

Increased

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10
Q

Multiple Myeloma / Waldenstrom’s

A

Increased

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11
Q

Hyperfibrinogenemia

A

Increased

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12
Q

Anemia, Macrocytosis

A

Increased

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13
Q

AMI, ESRD, RA, DM, Gout

A

Increased

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14
Q

Neoplastic disease

A

Increased

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15
Q

Pregnancy, menstruation

A

Increased

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16
Q

Polycythemia / Pancytosis

A

Decreased

17
Q

Poikilocytes

A

Decreased

18
Q

Microcytosis

A

Decreased

19
Q

Hypofibrinogenemia

A

Decreased

20
Q

Hypogammaglobulinemia

A

Decreased

21
Q

Newborn

A

Decreased

22
Q

MECHANICAL/TECHNICAL FACTORS:
High temperature, tilted ESR tube, vibration:

A

Falsely High ESR

23
Q

3o tilt = up to _____ error

A

30%

24
Q

Low temperature, old sample, bubbles in ESR tube

A

Falsely low ESR

25
Q

ESR Temperature: 20-25oC; test should be performed within _____ after blood
collection if kept at room temperature

A

4 hours