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CHAPTER 30 ■ Instrumentation in Hematology 643
CASE STUDIES
Case Study 30.1
■ Laboratory Data
A 28-year-old white woman had the ollowing erythrocyte
results:
RBC count 3.2 × 10 /L
12
Hemoglobin 8.7 g/dL
Hematocrit 26%
MCV 81 L
MCH 19 pg
MCHC 27.2 g/dL ■ Critical Thinking Group Discussion Questions
RCMI 13.2 1. Do the histogram or other erythrocyte results demon-
strate any abnormalities?
Her RBC histogram appears below. All other parameters
were within normal ranges. 2. What type o disorder, i any, is suggested by the RBC
results and histogram?
3. What urther laboratory testing should be considered?
Case Study 30.3
■ Laboratory Data
A 57-year-old white man with a total leukocyte count o 15 ×
10 /L had a three-part leukocyte di erential:
9
Lymphocytes 68%
Mononuclear cells 4%
■ Critical Thinking Group Discussion Questions Granulocytes 28%
1. Do the histogram or other erythrocyte results demon- Absolute lymphocyte value 10.2 × 10 /L
9
strate any abnormalities? Absolute granulocyte value 4.2 × 10 /L
9
T e WBC histogram appears below. All other parameters
2. What type o disorder, i any, is suggested by the RBC
results and histogram? were within normal ranges.
3. What urther laboratory testing should be considered?
Case Study 30.2
■ Laboratory Data ■ Critical Thinking Group Discussion Questions
A 48-year-old black woman had the ollowing RBC results: 1. Do the histogram or other leukocyte results demonstrate
RBC 2.36 × 10 /L any abnormalities?
12
Hemoglobin 8.6 g/dL
Hematocrit 27% 2. What type o disorder, i any, is suggested by the WBC
MCV 114 L results and histogram?
MCH 36.4 pg 3. What urther laboratory testing should be considered?
MCHC 32 g/dL
RDW 28% Case Study 30.4
Her RBC histogram appears below. All additional param-
eters were within normal ranges. ■ Laboratory Data
A 14-year-old white girl with a total leukocyte count o
29 × 10 /L had the ollowing histogram results:
9
Lymphocytes 15%
Mononuclear cells 48%
Granulocytes 37%
(continued)
