Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

MTAP 1 > Hema > Flashcards

Hema Flashcards

1
Q

Collection and Handling of Blood Specimens
What is the possible complication if you pushed too deep the lancet when doing skin puncture?
a. Osteoporosis
b. Osteoarthritis
c. Osteosarcoma
d. Osteomyelitis

A

Osteomyelitis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

In skin puncture, why is it important to warm the puncture site before collecting the sample?
To prevent contamination of lymphatic fluid from the blood
b. To avoid pain when punctured
c. To ensure the free flow of blood
d. To have a good picture of cells during
microscopie examination

A

To ensure the free flow of blood

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

When counting in hemocytometer, what will be the difference of the total cells counted in each side?
a. <5%
b. >5%
c. >10%
d. <10%

A

-<10% (Rodaks)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Which of the following RBC diluting fluid requires the use of spectrophotometer?
a. Hayem’s fluid b. Bethel’s fluid c. Toisson’s fluid d. Gower’s fluid

A

-Gower’s fluid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What counting chamber is used for basophil and eosinophil count?
a. Fuchs-Rosenthal
b. Levy-Hausser
c. Thoma-Zeiss
d. Addis

A

Fuchs-Rosenthal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the reason why we need to correct the WBC count when nucleated RBCs are seen in PBS?
a. Nucleated RBs are confused with giant thrombocytes
b. Nucleated RBCs are counted as leukocytes
c. The WBC count would be falsely lower
d. The RBC count is too low

A

Nucleated RBCs are counted as leukocytes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

A 1:200 dilution of patient’s sample was made and 330 red cells were counted in an area of 0.2 mm. What is the RBC count?
a. 1.68 x 10’/L
b. 3.30 x 10”/L
c. 6.60 × 10’L
d. 3.36 x 104L

A

-3.30 x 10”/L (330x200/0.2x0.1)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Which of the following is true about the Coulter principle?
a. Isotonic solutions cannot conduct electricity
b. Isotonic solutions conduct electricity better
than cells do
c. Conductivity varies proportionally to the
number of cells
d. Cells conduct electricity better than saline
does

A

-Isotonic solutions conduct electricity better than cells do

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What hematology analyzer uses multi-angle polarized scatter separation (MAPPS) to perform leukocyte count?
a. Sysmex E-500
b. Hemalog D
c. Coulter STKS
d. Cell-DYN 3000

A

Cell-DYN 3000

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Which of the Coulter hematology system produces complete differential with interpretative result?
a. Coulter Counter model S-Plus series
b. Coulter MAXM
c. Coulter ONYX
d. Coulter STKR

A

-Coulter STKR

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What light scatter angle can measure the cells based on reflection and refraction of internal components?
a. Forward light scatter
b. Forward low-angle light scatter
c. Forward high-angle scatter
d. Orthogonal light scatter

A

Orthogonal light scatter

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

In hematocrit determination, what will be the result if there is insufficient centrifigation?
a. Falsely decrease hematocrit value
b. Falselv increase hematocrit value
c. Increase hematocrit result by 30%
d. No effect on hematocrit value

A

Falselv increase hematocrit value

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Which of the following conditions is associated with decreased OFT?
a. Hereditary spherocytosis
b. Acquired hemolytic anemia
c. Hemolytic disease of the newborn
d. Sickle cell anemia

A

Sickle cell anemia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What RBC index is not affected when the hematocrit is falsely elevated?
a. MCH
b. MCV
c. MCHC
d. RDW

A

MCH

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Which of the following factors has no effect in erythrocyte sedimentation rate?
a. Anisocytosis, poikilocytosis
b. Caliber of the tube
c. Blood drawn in sodium citrate
d. Plasma proteins

A

Blood drawn in sodium citrate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Which condition will shift the oxyhemoglobin dissociation curve to the right?
a. Alkalosis
b. Acidosis
c. Multiple blood transfusions
d. Increased quantities of hemoglobin C

A

Acidosis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What method of osmotic fragility test uses spectrophotometer?
a. Incubation Method
b. Sanford Method
c. Unopipette Method
d. Haden’s modification Method Erythropoiesis

A

Unopipette Method

18
Q

. Which of the following is the correct maturation sequence of ervthrocyte?
a. Rubriblast, Prorubricyte, Rubriete, Metarubriete, Reticulocyte, Mature Erythrocyte
b. Prorubricyte, Rubricyte, Metarubricyte, Reticulocyte, Mature Erythrocyte
c. Pronormoblast. Basophilic Normoblast, Orthochromic Normoblast.
Polychromatic Normoblast, Polychromatic Erythrocyte, Mature Erythrocyte
d. Megakaryoblast, Promegakaryocyte, Rubricyte, Metarubricyte, Reticulocyte, Mature Erythrocyte

A

-Rubriblast, Prorubricyte, Rubriete, Metarubriete,
Reticulocyte, Mature Erythrocyte

19
Q

Which of the following is not true about maturation of erythrocyte precursors?
a. Cell diameter decreases
b. Pyknotic nucleus
c. Nuclear chromatin becomes coarser
d. The N:C ratio of rubriete is 1:2

A

The N:C ratio of rubriete is 1:2

20
Q

What hormone rescues CFU-E from apoptosis?
a. Inhibin
b. Eryhropoietin
c. Thymopoietin
d. Thrombopoietic mediator thrombopoietin

A

Eryhropoietin

21
Q

What is the earliest identifiable ervthroete colony?
a. Pronormoblast
b. BFU-E
c. CFU-GM
d. GM-CSF

A

-BFU-E

22
Q

Embden-Meyerhof pathway

A

Maintains cellular energy

23
Q

Hexose monophosphate shunt

A

Prevents denaturation of hemoglobin molecule

24
Q

Methemoglobin reductase pathway

A

Prevents oxidation of heme iron

25
Q

Lucbering-Rapoport pathway

A

Regulates oxygen affinity

26
Q

Sickle Cell

A

Menisocyte

27
Q

Burr Cell

A

Thorny Apple

28
Q

Teardrop Cell

A

Pear-Shaped Cell

29
Q

Elliptocyte

A

Cigar-shaped

30
Q

What autosomal recessive disorder is most common to Ashkenazi
Jews caused by a defect in enzyme located at 1q21-022?
a. Mucopolysaccharidoses
b. Neimann-Pick disease
c. Acquired Pelger-Huet Anomaly
d. Gaucher disease

A

Gaucher disease

31
Q

In mucopolysaccharidoses disorders, what syndrome is characterized by deficient in a-N-acetylglucosaminidase?
a. Hurler syndrome
b. Hunter syndrome
c. Sanfilippo syndrome
d. Morquio syndrome

A

Sanfilippo syndrome

32
Q

Which conditions is an autosomal dominant disorder and has pince-nez form with nuclei attached by thin filament?
a. Alder-Reilly anomaly
b. Pelger-Huet anomaly
c. May-Hegglin anomaly
d. Neimann-Pick discase

A

Pelger-Huet anomaly

33
Q

What anomaly is sex-linked recessive disease mostly found in male infants with inability of neutrophil to kill the ingested bacteria?
a. Undritz anomaly
b. Chediak-Hegashi syndrome
c. Jordan’s anomaly
d. Chronic Granulomatous disease

A

Chronic Granulomatous disease

34
Q

Mast cells have high-affinity surface receptor for which immunoglobulin?
a. A
b. G
c. D
d. E

A

E

35
Q

Which normal bone marrow but can be seen in certain types of acute leukemia?
a. Type I Myeloblast
b. Type II Myeloblast
c. Type III Myeloblast
d. Type IV Myeloblast

A

Type III Myeloblast

36
Q

A manual WBC count is performed. Ninety WBCs are counted in the four large corner squares of a neubauer hemocytometer with 1:200 dilution. What is the total WBC count?
a. 2.25 x10/L
b. 4.45 x10/L
c. 45.0 x10/L
d. 450 x10/L

A

-45.0 x10/L

37
Q

What antigen is expressed in neutrophil used to detect hidden infection?
a. CD35
b. CD5
c. CD25
d. CD15

A

CD15

38
Q

What hormone is used in cosinophil depression test?
a. ACTH
b. Growth hormone
c. TSH
d. EPO

A

ACTH

39
Q

In nitroblue tetrazolium test, what is formed after neutrophils are incubated with colorless soluble dye?
a. Cherry red precipitate
b. Blue black formazan precipitate
c. Blue precipitate
d. No precipitate formed

A

-Blue black formazan precipitate

40
Q

What is the method used in absolute basophil count?
a. Copper and Cruickshank
b. Friedmann
c. Randolp
d. Discombe

A

Copper and CruickshankI’m

MTAP 1 (13 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions