ASCP HEMATOLOGY FINAL PAPER
PRACTICE SOLUTION TESTED QUESTIONS
WITH COMPLETE ANSWERS
●● The specimen of choice for preparation of blood films for manual
differential leukocyte counts is whole blood collected in:
A. EDTA
B. oxalate
C. citrate
D. heparin
Answer: A. EDTA
Explanation:
High-quality blood smears can be made from an EDTA tube within 4
hours of drawing the specimen. After 5 hours cell artifacts develop.
EDTA generally prevents platelets from clumping on glass slides.
●● Identify the crystals in the photomicrograph:
A. tyrosine
B. uric acid
, C. calcium oxalate
D. ammonium biurate
Answer: B. uric acid
Explanation:
The photomicrograph shows the presence of several uric acid crystals.
Uric acid crystals appear in acidic urines as colorless or yellow-brown
rhombic plates. They often appear in clusters referred to as "rosettes."
They may be considered as a normal urinary crystal in small amounts,
but large amounts are associated with increased purine metabolism and
would be considered clinically significant.
●● Which of the following is most closely associated with iron
deficiency anemia?
A. iron overload in tissue
B. macrocytes
C. basophilic stippling
D. chronic blood loss
Answer: D. chronic blood loss
●● An additional test to perform in a patient having a lupus workup after
the DRVV would be:
Answer: hexagonal phase
PRACTICE SOLUTION TESTED QUESTIONS
WITH COMPLETE ANSWERS
●● The specimen of choice for preparation of blood films for manual
differential leukocyte counts is whole blood collected in:
A. EDTA
B. oxalate
C. citrate
D. heparin
Answer: A. EDTA
Explanation:
High-quality blood smears can be made from an EDTA tube within 4
hours of drawing the specimen. After 5 hours cell artifacts develop.
EDTA generally prevents platelets from clumping on glass slides.
●● Identify the crystals in the photomicrograph:
A. tyrosine
B. uric acid
, C. calcium oxalate
D. ammonium biurate
Answer: B. uric acid
Explanation:
The photomicrograph shows the presence of several uric acid crystals.
Uric acid crystals appear in acidic urines as colorless or yellow-brown
rhombic plates. They often appear in clusters referred to as "rosettes."
They may be considered as a normal urinary crystal in small amounts,
but large amounts are associated with increased purine metabolism and
would be considered clinically significant.
●● Which of the following is most closely associated with iron
deficiency anemia?
A. iron overload in tissue
B. macrocytes
C. basophilic stippling
D. chronic blood loss
Answer: D. chronic blood loss
●● An additional test to perform in a patient having a lupus workup after
the DRVV would be:
Answer: hexagonal phase
