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HEMATOLOGY > blessing > Flashcards

blessing Flashcards

1
Q

It is the processes that are employed to document assay validity, accuracy, and precision

A

Quality Control

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2
Q

Compute the central tendency of the following data set:

90,90,2,6,9,15,10,11,15,20,11,11,90

A

Mean: 27.47; Median 11; Mode: 11

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3
Q

Which best describes OFT?

A

Heparinized whole blood is added to varying concentration sodium chloride solution
and incubated at room temperature.

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4
Q

What is the anticoagulant of choice for OFT?

A

Heparin

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5
Q

This phase of quality assurance is about the competence of the laboratory staff. Assay and
instrumentation selection, validation, linearity, accuracy and presicion.

A

Analytical Phase

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6
Q

The ability of an assay to distinguish the targeted analyte from interfering substances within the
specimen is called?

A

Analytical specificity

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7
Q

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?

A

Postanalytical

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8
Q

What is the median of the given data set?

89, 8,76, 78,12,14,19,18,15

A

16.5

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9
Q

What is the proper angle for the pusher slide when making a bedside peripheral blood smear?

A

45 degrees

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10
Q

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?

A

The incorrect tube was drawn and the specimen cannot be used for CBC

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11
Q

What is the best way to increase blood flow in an infant’s foot?

A

Use a heel warmer or warm water

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12
Q

Which characteristic is inaccurate with respect to the anticoagulant k3 EDTA?

A

Is used for most routine coagulation studies

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13
Q

Gauge considered standard for routine venipuncture

A

21

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14
Q

After greeting the patient, what is the first thing the phlebotomist do?

A

Have patients say and spell their name

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15
Q

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?

A

Plasma

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16
Q

A hematoma can form if

A

ALL OF THE ABOVE

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17
Q

Which one of the following is a reason for specimen rejection?

A

Specimen in lavender stopper tube grossly hemolyzed

18
Q

A hematoma that occurs during phlebotomy procedure is usually due to

A

The needle going through the vein and too slowly

19
Q

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?

A

The reticulocyte percentage will be within the reference interval

20
Q

The diffuse basophilia associated with the following disease/s or condition/s

I. Folate deficiency
II. Thalassemia
III. Vitamin B12 deficiency
IV. Hemoglobinopathies

A

II and IV

21
Q

The photo is seen in the FF conditions: CABOT RINGS (infinity)

I. Megaloblastic anemia
II. Hb H disease
III. Myelodysplastic anemia
IV. G6PD Deficiency

A

I. Megaloblastic anemia

III. Myelodysplastic anemia

22
Q

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?

A

The reticulocyte percentage will be falsely decreased

23
Q

Each of the square with red dots measures

A

0.2mm sq??

24
Q

What correction function should be used to correct a patient’s reticulocyte count when the
patient’s hematocrit is 25%

A

2

25
Q

How does Heinz body appear under the microscope using wright stain?

A

NONE OF THE CHOICES

26
Q

Using wright stain, the rbc inclusion shown in the photo above is described to appear as

A

Dark purple dense, round granule (?) NOT SURE pls refer to module

27
Q

In capillary puncture, which of the following is considered as bad practice?

A

Milking the finger

28
Q

The following are faulty techniques that should be avoided in hemoglobin determination except

A

Using the patient sample control as standard reagent

29
Q

Below is a picture of hematocrit reader with sample placed on it. What is wrong with the
picture?

A

The capillary tube is too long

30
Q

The following are specifications of capillary tube except

A

1.5 mm bore

31
Q

Which statement is true?

A

The conventional unit of hemoglobin is g/dL

32
Q

All are components of drabkin solution except:

I. Sodium carbonate
II. Potassium cyanide
III. Potassium ferricyanide

A

I. Sodium carbonate

33
Q

This optical instrument measures the concentration of Hemoglobin through its light intensity as
a function of wavelength

A

Spectrophotometer

34
Q

It is a common hematology test that determine and monitor inflammatory activity

A

Erythrocyte sedimentation rate

35
Q

RDW reference range is

A

11.5% - 14.5%

36
Q

Manual RBC count would be the source of error of what parameter

A

MCH

37
Q

This method allows the detection of highly elevated ESR due to its taller column height

A

Westergren method

38
Q

MHC quantifies the amount of _____

A

Hemoglobin per rbc

39
Q

What will happen to the rbc membrane when it is subjected to isotonic solution of 0.85%

A

None of the above

40
Q

It is the processes of adding sodium potassium chloride solution to packed red blood cell

A

Osmotic fragility test

41
Q

In a normal blood specimen, at what concentration should the hemolysis end?

A

30%

42
Q

What is the anticoagulant of choice for the test oft

A

Heparin

HEMATOLOGY (3 decks)

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