3 Flashcards
What is a hemiacetal?
• A compound with a carbonyl group
• A compound with an alcohol
• A compound with both a carbonyl and alcohol group.
• A compound that is part ketone
• A compound with both a carbonyl and alcohol group.
lactophenol cotton blue preparation from a culture of a dematiaceous fungi. This fungus is known to cause phaeohyphomycosis and can be found in sites such as subcutaneous tissue, brain, eyes, and bones. Which of the following fungi is represented?
• Bipolaris species
• Cladophialophora species
• Curvularia species
• Alternaria species
• Bipolaris species
Displays branching chains of dematiaceous blastoconidia.
A 4.0 mg/dL creatinine standard is needed. To prepare 100 mL of the working standard, how much stock standard of 1 mg/mL creatinine is needed?
The correct answer is highlighted below
•0.1 mL
•0.4 mL
• 4 mL
• 40 mL
• 4 mL
A manual white blood cell count was performed by the hematology technologist. The cell counts for each of two sides was 38 and 42 respectively. All nine large squares were counted on each side. The dilution for this kit was pre-measured at 1:10. What should the technologist report as the white cell count?
The correct answer is highlighted below
• 4.8 × 10°/L
•0 4.4 x10%
•0.48 × 109/L
•0.44 × 10^9L
•0.44 × 10^9L
Homogentisic acid in urine will cause urine to be which of the following colors?
The correct answer is highlighted below
• Green
• Pink
• Port-wine
•Brown/black
•Brown/black
Alkaptonuria
If detected in antibody screen testing, which of the following antibodies is NOT considered clinically significant in prenatal patients?
•Anti-M
•Anti-N
•Anti-Leb
•Anti-Fya
•Anti-Leb
Anti-Leb may be detected in antibody screen testing of prenatal patients; however, this antibody is considered clinically insignificant. It is not indicated in causing hemolytic disease of the fetus and newborn (HDFN).
Which of the following blood tests is used in the determination of prostate cancer?
• Acid phosphatase
• Alkaline phosphatase (ALP)
• Alanine aminotransferase (ALT or SGPT)
•Creatinine
• Acid phosphatase
Which FAB designation is called the “true” monocytic leukemia and is characterized by monoblasts, promonocytes, and monocytes?
FAB M1
FAB M3
FAB M4
FAB M5
FAB M5
The number of patients correctly diagnosed for the disease or not having the disease is defined as:
• Positive predictive value
• Negative predictive value
• Efficiency
• Sensitivity
Efficiency
The efficiency is calculated by the following equation:
((TP + TN) / (TP + FP + FN + TN)) x 100
This antinuclear antibody (ANA) pattern is characterized by granular staining in the nuclei of the interphase cells (a). There is also an absence of staining in the chromosomal area of the metaphase mitotic cells (b).
• Homogeneous
• Speckled
• Nucleolar
• Centromere
• Speckled
Which of the following errors occurs in the post-analytical phase?
• Wrong test ordered
• Incorrectly handled critical test value
• Incorrectly collected sample
• Incorrectly performed instrument calibration
• Incorrectly handled critical test value
Which of the following tests require a 72-hour stool (fecal) collection?
• Occult blood
• Quantitative fecal fat
• Ova and Parasite (O&P)
• Stool culture
• Quantitative fecal fat
What procedure utilizes leukapheresis to collect the buffy coat from whole blood?
• Photopheresis
• Plasmapheresis
• Therapeutic apheresis
• Erythrocytapheresis
• Photopheresis
The autohemolysis test is MOST useful in the diagnosis of which condition?
• Pyruvate kinase (PK) deficiency
• G6PD deficiency
• Sickle cell anemia
•Hereditary spherocytosis
•Hereditary spherocytosis
A blood collection system that has a retractable needle malfunctions and causes an injury to a patient. Which of the following actions must be taken?
• An incident report must be completed.
• The phlebotomist must be retrained
• The phlebotomist must be reprimanded
• The patient must be given a Hepatitis C vaccine.
• An incident report must be completed.
