Hemoglobin and Hematocrit Determination Flashcards

1
Q

TRUE or FAlse

SKin dermal puncture is applicable for newborns

A

True

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2
Q

Most routinely used; CBC

A

EDTA

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3
Q

ESR anticoagulants

A

DOuble oxalate

3.8% Na citrate

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4
Q

Diluent for acid hematin

A

distilled water

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5
Q

Reagent for Acid hematin

A

0.1 N HCL

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6
Q

0.1N HCL is mark upto

A

2

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7
Q

THe gold standard

A

Cyanmethemoglobin

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8
Q

What is the relationship of wavelength and absorbance

A

directly

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9
Q

Reagent dor cyanmethemoglobin

A

Drabkin reagent

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10
Q

centrifuge for hct

A

5 minutes @ 10,000 rpm

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11
Q

how many ml of drabkin reagent

A

5 ml

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12
Q

HCT is lowes or higher in the morning

A

highest

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13
Q

how full is capillary tube

A

2/3 full

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14
Q

Parallax error

A

Positioning

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15
Q

Falsely incr

A

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

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16
Q

Rule of three applies to

A

normocytic, normochromic RBCs

17
Q

HCT is expressed as

A

percentage or decimal fraction

18
Q

HCT normal value for women

A

36-48%

19
Q

HCT normal value at 1 yr

A

27-44%

20
Q

Potassium cyanide + ferricyanide =

A

Drabkin reagent