Exercise 11: Blood Analysis: Activity 2: Erythrocyte Sedimentation Rate Lab Report
Pre-lab Quiz Results
You scored 33% by answering 1 out of 3 questions correctly.
1. The erythrocyte sedimentation rate (ESR)
Your answer : a. measures the settling of red blood cells (RBCs) in a sample of whole blood during one minute.
Correct answer: c. is increased whenever fibrinogen and immunoglobulins cause the RBCs to clump together, stack up, and form a column.
2. The ESR cannot be used to follow the progression of which of the following diseases?
Your answer : c. rheumatoid arthritis
Correct answer: d. gingivitis
3. The ESR can be used to evaluate a patient with
You correctly answered: e. all of the above.
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Experiment Results
Predict Question:
Predict Question: How will the sedimentation rate for sample 6 (individual with angina pectoris) compare with the sedimentation rate for sample 1 (healthy individual)?
Your answer : b. It will be lower.
Stop & Think Questions:
What is in the beige-colored portion of the sedimentation tube?
You correctly answered: c. plasma
Experiment Data:
Blood sample
1
2
3
4
5
6
Distance RBCs have settled
5 mm
15 mm
0 mm
30 mm
40 mm
5 mm
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Time elapsed
60 min
60 min
60 min
60 min
60 min
60 min
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Sedimentation rate
5 mm/hr
15 mm/hr
0 mm/hr
30 mm/hr
40 mm/hr
5 mm/hr
Post-lab Quiz Results
You scored 0% by answering 0 out of 3 questions correctly.
1. The erythrocyte sedimentation rate (ESR) measures
Your answer: b. the settling of plasma in a vertical, stationary tube of whole blood during one hour.
Correct answer: d. the settling of RBCs in a vertical, stationary tube of whole blood during one hour.
2. An increase in the ESR is
Your answer: d. all of the above.
Correct answer: c. associated with worsening of anemia.
3. To properly measure the ESR, you need
Your answer: b. to add sodium chloride.
Correct answer: c. a 1-hour