HEMA LB QUIZ

Question 1

length of time: 30 cm

Answer 1

westergren

Question 2

Diameter of bore: 2.5 cm

Answer 2

westergren

Question 3

length of time: 11.5

Answer 3

wintrobe

Question 4

diameter of bore: 3mm

Answer 4

wintrobe

Question 5

calibration: 0-200 mm

Answer 5

westergren

Question 6

anticoagulant of choice: 3.8 trisodium citrate

Answer 6

westergren

Question 7

anticoagulant of choice of wintrobe:

Answer 7

hellen and paul’s double oxalate

Question 8

Smaller amount of blood is needed,
other tests can be performed after
ESR determination (hematocrit and
LE cell preparation)

Answer 8

wintobe

Question 9

macromethods

Answer 9

a. graphic or cutler
b. linzenmeier method
c. bray’s method

Question 10

micromethods

Answer 10

a. microlandau
b. smith micro
c. crista or hellige-vollmer

Question 11

Anticoagulant of choice is 3.8% sodium citrate

Answer 11

graphic or cutler

Question 12

Cutler tube (5 mL capacity; graduation of 0-50 mm.)

Answer 12

graphic or cutler

5mL
0-50mm

Question 13

Anticoagulant of choice is 3% sodium citrate

Answer 13

LINZENMEIER METHOD

Question 14

Uses Linzenmeier tube which is 65 mm in length, 5 mm in
diameter and has a capacity of 1 mL (with a mark at 18 mm)

Answer 14

65mm in length
5mm in diamwter
1mL
mark 18 mm

Question 15

Add 0.8 mL of blood to 0.02 mL of sodium citrate.

Answer 15

linzenmeier method

Question 16

2. Mix and pour the mixture into the tube up to the 1 mL mark.
3. Allow the tube to stand in an upright position until the RBCs
   settle at the 18 mm mark.

Answer 16

linzenmeier method

Question 17

record in minutes

Answer 17

linzenmeier method

Question 18

Anticoagulant of choice is 1.3% sodium citrate

Answer 18

brays method

Question 19

flat bottomed and calibrated on both
sides like the Wintrobe tube

Answer 19

brays tube

Question 20

can be used for hematocrit and LE cell preparation

Answer 20

brays tube

Question 21

1. Place 1.3% sodium oxalate up to the 5 mm mark on the side
   calibration.
2. Add venous blood up to the 50 mm mark.

Answer 21

brays

Question 22

3. Mix by inverting the tube. Avoid bubble formation.
   with a small bulb similar to RBC and WBC pipettes.
4. Set the tube vertically and read the rate of settling every five
5. Plot the graph and record the maximum sedimentation rate (MSR). It is usually sufficient to make readings at 10, 20, 30 and 60 minutes

Answer 22

brays

Question 23

a modification of Linzenmeier-Raunert

Answer 23

micro landau

Question 24

micro landau anticoagulant of choice

Answer 24

5% sodium citrate

Question 25

micro landau tube calibrated and has two grad marks

Answer 25

calibration : 0-50mm

1. 12.5 mm
2. 62.5 mm

Question 26

Used for infants and children when venipuncture may not be practical

Answer 26

smith method

Question 27

in chronic inflammatory conditions, including
rheumatoid arthritis and pregnancy (increased fibrinogen),
bacterial infection,
malignancy,
tissue damage,
multiple myeloma,
waldenstrom macroglobulinemia
and severe anemia

Answer 27

INCREASED

Question 28

polycythemia,
sickle cell anemia,
spherocytosis and
other conditions with poikilocytosis (prevents
rouleaux formation

Answer 28

normal to decreased

Question 29

Tilted column
• Hemolysis
• Increased room temperature

Answer 29

falsey increased

Question 30

• Clotted sample
• Excess anticoagulant
• Old blood (spherocytes form)

Answer 30

falsely decreased