blessing Flashcards
(42 cards)
It is the processes that are employed to document assay validity, accuracy, and precision
Quality Control
Compute the central tendency of the following data set:
90,90,2,6,9,15,10,11,15,20,11,11,90
Mean: 27.47; Median 11; Mode: 11
Which best describes OFT?
Heparinized whole blood is added to varying concentration sodium chloride solution
and incubated at room temperature.
What is the anticoagulant of choice for OFT?
Heparin
This phase of quality assurance is about the competence of the laboratory staff. Assay and
instrumentation selection, validation, linearity, accuracy and presicion.
Analytical Phase
The ability of an assay to distinguish the targeted analyte from interfering substances within the
specimen is called?
Analytical specificity
Accurate transcription and filing of results, content, and format of laboratory report, narrative
report, reference interval, and therapeutic stage, is part of what phase in quality assurance?
Postanalytical
What is the median of the given data set?
89, 8,76, 78,12,14,19,18,15
16.5
What is the proper angle for the pusher slide when making a bedside peripheral blood smear?
45 degrees
A specimen for complete blood count is dropped off in the lab and you notice that the doctor
has drawn a green top tube. What do you tell the physician?
The incorrect tube was drawn and the specimen cannot be used for CBC
What is the best way to increase blood flow in an infant’s foot?
Use a heel warmer or warm water
Which characteristic is inaccurate with respect to the anticoagulant k3 EDTA?
Is used for most routine coagulation studies
Gauge considered standard for routine venipuncture
21
After greeting the patient, what is the first thing the phlebotomist do?
Have patients say and spell their name
When the coagulation of fresh whole blood is prevented through the use of an anticoagulant
the straw colored fluid that can be separated from the cellular element is?
Plasma
A hematoma can form if
ALL OF THE ABOVE
Which one of the following is a reason for specimen rejection?
Specimen in lavender stopper tube grossly hemolyzed
A hematoma that occurs during phlebotomy procedure is usually due to
The needle going through the vein and too slowly
A medical thechnologist performed reticulocyte counting using a miller disc. Upon viewing
under the microscope, the medical technologist did not include the reticulocytes touching the
bottom and right lines in the count. How would this affect the reticulocyte percentage?
The reticulocyte percentage will be within the reference interval
The diffuse basophilia associated with the following disease/s or condition/s
I. Folate deficiency
II. Thalassemia
III. Vitamin B12 deficiency
IV. Hemoglobinopathies
II and IV
The photo is seen in the FF conditions: CABOT RINGS (infinity)
I. Megaloblastic anemia
II. Hb H disease
III. Myelodysplastic anemia
IV. G6PD Deficiency
I. Megaloblastic anemia
III. Myelodysplastic anemia
A medical technologist prepared blood films to perform reticulocyte count. However the slides
did not dry properly due to moisture in the air. How would this affect the reticulocyte
percentage?
The reticulocyte percentage will be falsely decreased
Each of the square with red dots measures
0.2mm sq??
What correction function should be used to correct a patient’s reticulocyte count when the
patient’s hematocrit is 25%
2
