Self-Assessment

Question 1

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

Answer 1

Plasma

Question 2

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

Answer 2

Gamma globulin

Question 3

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

Answer 3

Bright red

Question 4

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

Answer 4

Platelets

Question 5

5. (True or False) Blood transports O2 from the lungs where the O2 tension if low, to the tissues where the O2 is high.

Question 6

6. Define Dysmyelopoiesis

Answer 6

Abnormal BM production

Question 7

7. Define Hematoma

Answer 7

Swelling of blood vessels

Question 8

8. Define Leukocytopenia

Answer 8

Deficiency in white blood cells

Question 9

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

Answer 9

Thrombophlebitis

Question 10

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

Answer 10

Poikilocytosis

Question 11

Contains large red-orange granules

Answer 11

Eosinophil

Question 12

Has an elongated and curved nucleus

Answer 12

Neutrophilic band

Question 13

Has a light, sky-blue cytoplasm

Answer 13

Lymphocyte

Question 14

Has a kidney beanshaped nucleus

Answer 14

Monocyte

Question 15

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

Answer 15

Segmented neutrophil

Question 16

What leukocyte is increased in allergic reactions?

Answer 16

Basophil

Question 17

As the cell matures, the cell diameter decreases, except

Answer 17

Megakaryocyte

Question 18

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

Answer 18

Endomitosis

Question 19

Phase of hematopoiesis where synthesis of fetal hemoglobin begins.

Answer 19

Hepatic stage

Question 20

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

Answer 20

Committed

Question 21

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

Answer 21

Myelocyte

Question 22

The last stage in the erythrocytic series to undergo mitosis.

Answer 22

Polychromatophilic normoblast

Question 23

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

Question 24

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

Question 25

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

Question 26

The gauge numbers of needles relate directly to bore size

Question 27

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

Question 28

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

Question 29

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

Question 30

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

Question 31

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

Answer 31

Blood gas analysis tube is filled before the coagulation tube

Question 32

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

Answer 32

Plasma

Question 33

What is the most commonly used anticoagulant in hematology

Answer 33

EDTA

Question 34

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

Answer 34

Glycolysis

Question 35

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

Answer 35

Cephalic vein

Question 36

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

Answer 36

G21

Question 37

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

Question 38

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.

Question 39

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?

Question 40

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?

Question 41

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.

Question 42

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

Answer 42

20 cumm

Question 43

In which condition is hemoglobin level low?

Question 44

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

Question 45

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

Question 46

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?

Question 47

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

Question 48

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

Question 49

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

Question 50

1. Inclusion of buffy coat in the reading.

Question 51

2. Hemodilution.

Question 52

3. Length of the clay-paraffin sealant is 3 mm

Question 53

4. Presence of many anisocytes and poikilocytes

Question 54

5. Inadequate mixing, sample was aspirated just from the upper portion of blood.

Question 55

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