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HEMA 1 LEC > Self-Assessment > Flashcards

Self-Assessment Flashcards

1
Q
  1. How do you call the liquid portion of and anticoagulated blood?
A

Plasma

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2
Q
  1. The antibodies produced by one infected with covid -19 are of what type of plasma proteins?
A

Gamma globulin

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3
Q
  1. What is the color of a blood that contains large amount of oxidized hemoglobin?
A

Bright red

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4
Q
  1. This blood cell has is normally 150,000 450.000 per microliter og blood.
A

Platelets

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5
Q
  1. (True or False) Blood transports O2 from the lungs where the O2 tension if low, to the tissues where the O2 is high.
A
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6
Q
  1. Define Dysmyelopoiesis
A

Abnormal BM production

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7
Q
  1. Define Hematoma
A

Swelling of blood vessels

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8
Q
  1. Define Leukocytopenia
A

Deficiency in white blood cells

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9
Q
  1. Identify: Term defined as an inflammation of the vein caused by a blood clot formed within.
A

Thrombophlebitis

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10
Q
  1. Identify: Term defined as increased variation (of size) among cells/Lack of uniformity among cells.
A

Poikilocytosis

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11
Q

Contains large red-orange granules

A

Eosinophil

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12
Q

Has an elongated and curved nucleus

A

Neutrophilic band

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13
Q

Has a light, sky-blue cytoplasm

A

Lymphocyte

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14
Q

Has a kidney beanshaped nucleus

A

Monocyte

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15
Q

Represents approximately 56% of normal adult leukocytes in the peripheral blood

A

Segmented neutrophil

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16
Q

What leukocyte is increased in allergic reactions?

A

Basophil

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17
Q

As the cell matures, the cell diameter decreases, except

A

Megakaryocyte

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18
Q

Refers to the division of chromosomes without complete nuclear division nor cell division.

A

Endomitosis

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19
Q

Phase of hematopoiesis where synthesis of fetal hemoglobin begins.

A

Hepatic stage

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20
Q

The BFU-E and CFU-E are ________ progenitors.

A

Committed

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21
Q

The stage in the granulocytic series where secondary granules start to appear.

A

Myelocyte

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22
Q

The last stage in the erythrocytic series to undergo mitosis.

A

Polychromatophilic normoblast

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23
Q

Some physiologic factors affecting test results include posture, diurnal rhythm, exercise, stress, diet, and smoking.

A
24
Q

Presence clots in a red stopper tube is a ground for rejection of the sample

A
25
Q

E vacuated tubes fo llow a universal color coding system in which the stopper color indicates the type of additive contained in the tube.

A
26
Q

The gauge numbers of needles relate directly to bore size

A
27
Q

Drawing blood from a patient with IV fluid running in one arm requires first line for 2 minutes.

A
28
Q

Heel puncture on infants less than 1 year adequate amount of blood

A
29
Q

Hematoma can form if the needle punctures both walls of the vein.

A
30
Q

The posterior curve of the heel is acceptable for the collection of capillary blood from an infant.

A
31
Q

Failure to obtain blood by venipuncture may occur because of inadequate vacuum in the tube

A

Blood gas analysis tube is filled before the coagulation tube

32
Q

When the coagulation of fresh whole blood is prevented through the use of an anticoagulant, the fluid separated is called a

A

Plasma

33
Q

What is the most commonly used anticoagulant in hematology

A

EDTA

34
Q

Heparin inhibits the clotting of fresh whole blood by neutralizing the effect of

A

Glycolysis

35
Q

What is the second best option for phlebotomy if the median cubital vein of the right arm is not prominent.

A

Cephalic vein

36
Q

What is the standard gauge and length of the needle in phlebotomy?

A

G21

37
Q

Why is it necessary to compute for corrected WBC count in the presence of significant number of nucleated red blood cells?

A
38
Q

Compute for the dilution factor of the RBC pipet if blood is sucked up to 0.2 mark and the diluting fluid at 11 mark.

A
39
Q

A manual white blood cell (WBC) count was performed. A total of 39 cells were counted in all 9-mm2 squares of a Neubauer hemocytometer. A 1:10 dilution was used. What is the WBC count?

A
40
Q

A 1:200 dilution of a patients sample was made and 330 red cells were counted in an area of 0.2 mm2. What is the RBC count?

A
41
Q

Blood is sucked up to .8 mark and the diluting fluid until the last mark of the RBC pipet. A total of 164 cells were counted in only 2 WBC (large) squares. Compute for the total cell count.

A
42
Q

What is the volume of blood added to the Drabkins reagent?

A

20 cumm

43
Q

In which condition is hemoglobin level low?

A
44
Q

Which Drabkins composition will convert the Fe++ form of hemoglobin iron into Fe+++?

A
45
Q

How will maternal red cells appear compared with the newborns red cells on the acid elution test?

A
46
Q

On hemoglobin electrophoresis performed at an alkaline pH, a protein band is observed at the Hb S region. What next step should be done to identify the hemoglobin?

A
47
Q

Explain the effect of high levels of hemoglobins S and C on the hemoglobin measurement using cyanmethemoglobin method.

A
48
Q

Will non-fasting of the patient have an effect in the cyanmethemoglobin method? Explain

A
49
Q

Explain the levels and distribution of hb in thalassemias and in hereditary persistence of fetal hemoglobin.

A
50
Q
  1. Inclusion of buffy coat in the reading.
A
51
Q
  1. Hemodilution.
A
52
Q
  1. Length of the clay-paraffin sealant is 3 mm
A
53
Q
  1. Presence of many anisocytes and poikilocytes
A
54
Q
  1. Inadequate mixing, sample was aspirated just from the upper portion of blood.
A
55
Q

APPLICATION: Compute for the following:
Given:
RBC count = 4.8 X 10 12/L
Hematocrit = height of PCV= 47 mm ; height of whole blood = 100 mm
Hemoglobin= 13.8 g/dL

A

HEMA 1 LEC (15 decks)

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