Serology Case Study 2
Submit the answers to the following questions through Assignments in BlackBoard.
History
23 year old male.
Over the past week noted increasing fatigue, sore throat, earaches,
headaches, and episodic fever and chills. Unable to run his customary
25 miles per week due to extreme fatigue.
Physical Exam
Erythematous throat and tonsils.
Swollen cervical lymph node
CBC with microscopic differential
RBC 5.25 x 1012/L
HGB 15.4 g/dL
HCT 46.1 %
MCV 87.9 fL
MCH 29.3 pg
MCHC 33.4 g/dL
RDW 12.2
WBC 12.9 x 109/L
Neutrophils 24 %
Lymphocytes (shown) 73%
Monocytes 0
Eosinophils 3%
Basophils 0
PLT 333 x 109/L
QUESTION 1: Evaluate each portion of the CBC and list all values which are out of the normal reference range. (2 points)
QUESTION 2: Identify the white blood cells in this field. Describe the morphologic characteristics including anything that is unusual. (2 points)
QUESTION 3: What is another name used to describe the white blood cells pictured in the blood smear? (1 point)
QUESTION 4: What further laboratory studies, if any, are indicated? (1 point)
QUESTION 5: A serological test was performed on the
patient's serum. (3 points)
Are the control areas valid?
What is your interpretation of the test illustrated below?
NOTE:
The product insert states that "C" is the positive
control and must have a line, the background is a negative control and
must remain colorless, the "T" is the test region and is the
patients result. A reaction by the patient sample similar to the "C"
area is a positive result, the reaction in the "T" region
will remain colorless if the test is negative, or have a color change
if positive.
QUESTION 6: What is the most likely diagnosis? (1 point)
Clinical Course
Three weeks later, the patient's symptoms had abated, and his WBC count was 7.6 x 109/L, with 56% lymphocytes.