HEMA LAB - HCT Determination Flashcards Preview

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Flashcards in HEMA LAB - HCT Determination Deck (26):
1

tube used for adam's microhematocrit method

capillary tube

2

tube used for wintrobe

wintrobe tube

3

tube used for haden's modification

calibrated tube

4

tube used for van allen method

tube with bulb

5

tube used for sanford-magath method

calibrated tube, with funnel-like mouth

6

tube used for bray's method

bray's tube

7

anticoagulant for adam's microhematocrit method

heparin in heparinized tube

8

anticoagulant for wintrobe

double oxalate

9

anticoagulant for haden's modification

1.1% sodium oxalatein distilled water

10

anticoagulant for van allen method

1.6% sodium oxalate in distilled water

11

anticoagulant for sanford-magath

1.3% sodium oxalate in distilled water

12

anticoagulant for bray's

heparin

13

normal values for bray's method

M 47vol%
F 42vol%

14

normal values for sanford-magath

M 2.3 mL = 46-48%
F 2.0 mL = 40-42%

15

Automated methods for Hct determination

Coulter method
Autoanalyzer

16

normal values for Adam's Microhematocrit method

M 40 - 54% or 0.40 - 0.54
F 35 - 49% or 0.35 - 0.49%

17

RPM and time for Adam's microhematocrit method

10,000 rpm for 4-5 min

18

RPM and time for Wintrobe method

3000 for 30 min

19

RPM and time for Haden's modification

3000 rpm for 20 min

20

RPM and time for Van Allen

2500 rpm, 15-30 min

21

RPM and time for Sanford-Magath

high speed, 15 min

22

RPM and time for Bray's

none, let stand for 1 hr

23

what happens when there is no mixing of blood in tube prior to hematocrit method

low Hct

24

height of sealing clay in adam's microhematocrit method

3 mm

25

1% hct = ? gm% hgb

0.34gm% hgb

26

1% hct = ? RBC/mm^3

107, 000 RBC/mm^3

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