[2S] UNIT 6 Hemacytometer

Question 1

4 Hemacytometer Kit

Answer 1

1. Counting chamber
2. RBC pipette
3. WBC pipette
4. Accessories
   a. Thick cover slip
   b. Suction device

Question 2

3 parallel platforms

Answer 2

Improved Neubauer

Question 3

Central platform
- Separated by transverse groove
- 0.1 mm lower than the lateral Platforms (depth)

Answer 3

Improved Neubauer

Question 4

1 primary square
- 3x3mm (9sqmm)
- 9 secondary squares
- 1x1mm

Answer 4

Ruling of Improved Neubauer

Question 5

4 corner secondary squares
- 16 tertiary squares
- 0.25 x 0.25 mm

Answer 5

WBC Count for Improved Neubauer

Question 6

Central secondary square
- 25 tertiary squares
- 16 smaller squares
- 0.2x0.2mm
- 5 of the 25 tertiary squares

Answer 6

Improved Neubauer

Question 7

Central secondary square
- 25 tertiary squares
- 16 smaller squares
- 0.2x0.2mm
- 5 of the 25 tertiary squares

Answer 7

RBC Count for Improved Neubauer

Question 8

Central secondary square
- 16 tertiary squares
- 16 smaller squares
- 0.25 x 0.25 mm
- 5 of the 16 tertiary squares

Answer 8

RBC Count for Neubauer

Question 9

For low cell count

Answer 9

Fuchs-Rosenthal

Question 10

The counting grid has an area of 4 mm x 4 mm and a depth of 0.2 mm. The volume of 1 big square is 0.2 μl, the complete counting chamber has a volume of 3.2 μl. For obtaining the number of WBC/μl, the cells in squares 1, 2, 3, 4 and 5 are counted.

Answer 10

Fuchs Rosenthal

Question 11

T/F: In Fuchs-Rosenthal, in case of low cell number the complete chamber is counted and the result is divided by 3 to obtain the number of WBC/μl.

Answer 11

T

Question 12

• Depth of 0.2 mm
• 4 sections
  
  • 2 on each side
  • 10 squares
    
    • 1x1mm(10sqmm)
    • 2 horizontal rows of 5 squares
    • 16 smaller squares

Answer 12

Speirs-Levy

Question 13

VOLUME OF BULB: 100 units

Answer 13

RBC pipette

Question 14

SIZE OF BORE IN STEM: Smaller

Answer 14

RBC pipette

Question 15

SIZE OF BORE IN STEM: Larger

Answer 15

WBC pipette

Question 16

VOLUME OF BULB: 10 units

Answer 16

WBC pipette

Question 17

CALIBRATION: 0.5, 1.0, 101

Answer 17

RBC pipette

Question 18

CALIBRATION: 0.5, 1.0, 11

Answer 18

WBC pipette

Question 19

USUAL DILUTION: 1:20

Answer 19

WBC pipette

Question 20

USUAL DILUTION: 1:200

Answer 20

RBC pipette

Question 21

COLOR OF BEAD: Red

Answer 21

RBC pipette

Question 22

COLOR OF BEAD: White / Colorless

Answer 22

WBC pipette