Hemoglobin and Hematocrit Determination

Question 1

TRUE or FAlse

SKin dermal puncture is applicable for newborns

Answer 1

True

Question 2

Most routinely used; CBC

Answer 2

EDTA

Question 3

ESR anticoagulants

Answer 3

DOuble oxalate

3.8% Na citrate

Question 4

Diluent for acid hematin

Answer 4

distilled water

Question 5

Reagent for Acid hematin

Answer 5

0.1 N HCL

Question 6

0.1N HCL is mark upto

Answer 6

2

Question 7

THe gold standard

Answer 7

Cyanmethemoglobin

Question 8

What is the relationship of wavelength and absorbance

Answer 8

directly

Question 9

Reagent dor cyanmethemoglobin

Answer 9

Drabkin reagent

Question 10

centrifuge for hct

Answer 10

5 minutes @ 10,000 rpm

Question 11

how many ml of drabkin reagent

Answer 11

5 ml

Question 12

HCT is lowes or higher in the morning

Answer 12

highest

Question 13

how full is capillary tube

Answer 13

2/3 full

Question 14

Parallax error

Answer 14

Positioning

Question 15

Falsely incr

Answer 15

Improper use of the reader
Insufficient centrifuge
fluid loss
presence of buffy coat

Question 16

Rule of three applies to

Answer 16

normocytic, normochromic RBCs

Question 17

HCT is expressed as

Answer 17

percentage or decimal fraction

Question 18

HCT normal value for women

Answer 18

36-48%

Question 19

HCT normal value at 1 yr

Answer 19

27-44%

Question 20

Potassium cyanide + ferricyanide =

Answer 20

Drabkin reagent