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Flashcards in CLINICAL CHEMISTRY Deck (202)
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1

A volumetric pipette has an accuracy of

1:1000

2

A pipette with a bulb close to the delivery tip is used for viscous fluids

Ostwald-Folin pipette

3

The etched rings on the top of a pipette means

The last drop is to "blown out" after the pipettes drains

4

Standard solution from which 99.95% of the chemical can be retrieved

Primary Standards

5

When preparing solutions

A percent solution can be prepared from a volumetric solution

6

A solution in which the molecules of solute in solution are in equilibrium with excess undissolved molecules

Saturated

7

Pure water has a pH of

7.0

8

A 1x10(-6) N solution of hydrocloric acid (HCl) has a pH of

8.0

9

A standard term that most specifically describes analytical precision

Coefficient of variation
*Standard Deviation
*Variance

10

Quality Control should be used with all procedures deterrmine

Reliability

11

A procedure has a 2SD variation from a mean value. How many values from from a normal population will the 2SD include

95.45%

12

Material with physical and chemical properties closely resembling the test specimen and containing concentrations of the substances being measured

Control

13

Optical density, according to Beer's Law

Directly proportional to the concentration

14

The difference between serum and plasma is that serum does not contain

Fibrinogen

15

Two control sera are desirable for each general chemistry procedure. Which of these combinations would be appropriate

Mean of normal range and abnormal (high)

16

Sodium flouride is used in specimen collection to

Prevent glycolysis

17

The concentration of oxalate recommended to be used as anticoagulant, in mg/ml blood

1-2

18

Ethylenediamine tetraacetic acid (EDTA) work as anticoagulant by

Chelating Calcium

19

The venipuncture site for a routine puncture is commonly cleaned with:

70% alcohol

20

The one precaution to be followed with a specimen for bilirubin determination is to

Protect from light

21

Substances cannot be preserved by feezing

Lactic dehydrogenase

22

Serum iron should be drawn at the same time on successive days to avoid

Diurnal variation

23

Proteins soluble in water

Albumin

24

The Amino Acids are joined together to form chainlike structure through

Peptide bonding

25

Elements in proteins differentiate this class of substances from carbohydrates and lipids

Nitrogen

26

Amino Acid cannot rotate polarized light

Glycine

27

Denaturation of proteins refers to an

Alteration in tertiary structure

28

The hemoglobin measurement technique employed for blood donor

Flotation technique of Phillips

29

Refers to the ratio of velocities of light in two different media

Refractive Index

30

The most anodic protein on electrophoresis at pH 8.6

Albumin