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ACTS (Reinforcement) > Hematology > Flashcards

Hematology Flashcards

1
Q

What is the average diameter of RBC?

a. 6 um
b. 5 um
c. 8.2 um
d. 7.2 um

A

d

7-8 um is the size of RBC diameter

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2
Q

What is the average liter of blood in humans?

a. 4L
b. 6L
c. 7L
d. 8L

A

b

5-6L

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3
Q

Which ofthe following activates fibrinolysis?

a. Plasmin
b. PAI-1
c. TAHI
d. Tissue plasminogen activator

A

d

ACTIVATES Plasmin to initiate it

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4
Q

Acute Myelomonocytic leukemia

a. M3
b. M4
c. M5
d. M6

A

B

M3 = Acute promyelocytic leukemia -> DIC ; faggot cell
M5 = Acute monocytic leukemia
M6 = Erythroleukemia

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5
Q

All of the following are fibrin fragments such as fragment X except:

a. Fragment D
b. Fragment Z
c. Fragment E
d. Fragment Y

A

B Does not exist

Fibrin fragments: X Y D E and D-D

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6
Q

The “C” in VCS Hematology Coulter Technology refers to:

a. Connectivity
b. Current
c. Conductivity
d. Cells

A

C

Volume Conductivity Scatter

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7
Q

The First peak in the picture represents what cell lineage

a. Neutrophils
b. Lymphocyte
c. Erythrocyte
d. Thrombocyte

A

b

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8
Q

Suitable venipuncture sites Except:

a. Dorsal surface of the hand
b. Plamar Surface of the hand
c. Veins of the ankle
d. Antecubital; fossa

A

B

Antecubital veins, back of the hand, the foot and ankle (Only with the physician’s permission)

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9
Q

A hemoglobin molecule is composed of :

a. One heme molecule and four globin chains
b. Ferrous iron, protoporphyrin IX and globin chains
c. Four heme molecules and four globin chains
d. Protoporphiyrin IX and four globin chains

A

c

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10
Q

What is the effect in protime if tube is not filled

a. Unaffected
b.Normal
c. Shortened
d. Prolonged

A

d

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11
Q

Which of the following is the major post-analytical error

a. Patient critical result
b. Sample transport
c. Sample quality
d. Patient analysis

A

a

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12
Q

How does insufficient centrifugation affect the hematocrit result

a. False increase
b. False decrease
c. Unaffected
d. Cannot be determined

A

a

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13
Q

Which is a characteristics of anemia of rnal disease?

a. Normocytic hypochromic
b. Normocytic, normochromic
c. Microcytic, hypochromic
d. Macrocytic, hyperchromic

A

b

Due to decrease in EPO, It is still normal

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14
Q

The mononuclear cells seen in WBC histogram include:

a. Platelet
b. Erythrocyte
c. Blast cells
d. Leukocytes

A

c

Includes monocyte, Blasts, immature granulocyts and reactive lymphocytes

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15
Q

Other name of echinocytes?

a. Teardrop
b. Drepanocyte
c. Acanthocyte
d. Burr cell

A

d

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16
Q

Peripheral blood cells involbed in hemostasis

a. Lymphocytes
b. Thrombocytes
c. Erythrocytes
d. Monocytes

A

b

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17
Q

The “R” seen in control flags means?

a. Red
b. Region
c. Radiofrequency
d. Real-time

A

b

Regional Flags - indicator of interference within the measurement

18
Q

RU flag in automation is found in the following except:

a. Cold agglutination
b. RBC fragmentation
c. Rouleaux formation
d. Autoagglutination

A

b

RU Flag = RBC abnormal height at the upper discriminator
- Possible causes: Cold agglutinins, Erythroblasts/Normoblasts

RL Flag = RBC abnormal height at the lower discriminator:
= Possible causes: Fiant Platelets, micro

19
Q

Bite cells are associated with:

a. G6PD deficiency
b. PK
c.Rh nu;;
d. Mcleaod phenotype

A

A

20
Q

If PT and TT is normal, APTT is prolonged, what is factor deficient

a. XIII
b. VII
c. IX
d. III
.

A

c

21
Q

The most common hereditary bleeding disorder

a. Hemophilia
b. Vitamin K deficiency
c. Factor VII deficiency
d. VWD

A

D

22
Q

Stain Definitive for Hairy Cell Leukemia

a. PAS
b. TRAP
c. MPO
d. SBB

A

b

23
Q

What is the rec order of draw when evacuated tube system is used?

a. Gel separator
b. Nonadditive
c. Additive
d. Blood culture, Coag, nonadditive, gel spe, other

A

d

24
Q

Effect of plasma protein in ESR

a. False increase
b. False decrease
c. Increase
d. Decrease

A

c

An increase in plasma globulins and relative increase of globulins due to loss of albumin causes ESR to increase

25
Q

If a small blood clot exists in an anticoagulated blood specimen, which blood cell parameter will be affected

a. Leukocyte count
b. Red Blood cell count
c. Platelet count
d. Microhematocrit

A

c

26
Q

Decrease RBC count

a. Clotting
b. Autoagglination
c. Hemolysis in vitro
d. Hemolysis in vivo

A

d

The first three are cause by false Decrease

27
Q

Composition of Perl’s prussian Blue

a. 1% ferric chloride and 5% aqueous HCl
b. 1% Potassium ferricyanide and 2% aqueous HCl
c. 2% Potassium ferricyanide and 1% aqueous HCl
d. 5% ferric chloride and 1% aqueous HCl

A

b

28
Q

Schistocytes, ovalocytes and acanthocytes are example of abnormal changes in RBC:

a. Volume
b. Shape
c. Inclusions
d. Hemoglobin once,

A

b

29
Q

Which of the followin blood film findings indicate EDTA-induced pseudothombocytopenia

a. The platelet are pushed to the feathered end
b. The plateles are adhering to WBCs
c The platelet are pushed to the thick part of the slide
d. The platelets are low

A

b

30
Q

What are the initial laboratory tests that are performed for the diagnosis of anemia

a. CBC, iron studies, and reticulocyte count
b. CBC, Retic count ,and peripheral blood film examination
c. Retics count and serum iron Vitamin B12 and Folate assays

A

b

31
Q

a common hereditary disease characterized by excess iron storage

a. Hemochromatosis
b. Anemia
c. Hemosiderosis
d. VWD disease

A

A

A- Commonly hereditary while hemosiderosis is usually acquired

32
Q

Normal value of APTT

a. 11-13 seconds
b. 20-40 seconds
c. 2-8 minutes
d. 1-3 mins

A

b

a - Prothrombin time
c - Bleeding time

33
Q

Auer rods:

a. Acute lymphocytic leukemia
b. Chronic lyphocytic leukemia
c. Acut granulocytic leukemia
d. Chronic granulocytic leukemia

A

c

34
Q

2SD encompass:

a. 68% of all values
b. 95% of all values
c. 99 % of all values
d. 100 % of all values

A

b

35
Q

Proper antiseptic technique in phlebotomy

a. Removing the drain before cleaning the skin
b. Cleaning from the center outward in circular motion
c. Wearing sterile gloves and a mask
d. Cleaning briskly around the site with alcohol

A

d

36
Q

What is the morphology of the echinocytes?

a. small round RBC
b. Scooped out part of an RBC
c. Short, scallop or spike like projection that are regularly distributed around the cell
d. Fragmented

A

c

37
Q

A reduction in thrombin generation n patient with scott syndrome results from :

a. Defective granule secretion
b. Altered platelet aggregation
c. Altered expression of phospholipids on the platelet membrane
d. Deficiency of Vitamin K dependent Clotting factos

A

c

38
Q

Pelger Huet anomaly

a. Hypersegnemtation
b. Hypo-segmentation
c. Bilobed segmentation
d. Hypogranular neutrophil

A

b

39
Q

A blood film for a patient with a normal RBC count has an average of 10 platelet per oil immersion field. which of the following values best correlates with estimar per microliter?

a. 20 000
b. 100 000
c. 200 000
d. 400 000

A

c

Plt estimate = Av Plt per OIF x 20000

40
Q

Basophilic stippling

a. lead Poisoning
b.Vit B12 def
c. Iron Def
d. Iron overload

A

a

ACTS (Reinforcement) (13 decks)

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