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Clinical Chemistry > INSTRUMENTATION > Flashcards

INSTRUMENTATION Flashcards

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1
Q

Used for heating and sterilization purposes
Most commonly used
High degree of thermal resistance, low alkali content

A

Borosilicate Glass

Pyrex
Kimax

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2
Q

High resistance to alkali
Thermal resistance less than borosilicates’

A

Boron-free glassware/ Soft glass

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3
Q

6 times stronger than borosilicate
Special alumina-silicate glass that has been strengthened chemically than thermally

A

Corex

Corning

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4
Q

Can be heated to 900C
Utilized for high thermal, drastic heat shock and extreme chemical treatment

A

Vycor

Corning

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5
Q

Made up of soda-lime glass and a mixture of calcium, silicona dn sodium oxide
Poor resistance to high temperature

A

Flint glass

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6
Q

Delivers the EXACT volume it holds into a container

A

To Deliver (TD)

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7
Q

Holds the particular volume but does not dispense the exact volume

A

To Contain (TC)

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8
Q

Continuous etched rings on TOP of the pipet
Exact volume is obtained when the last drop is blown out

A

Blow-out pipet

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9
Q

Absence of etched rings
Liquid allowed to drain by gravity

A

Self-draining

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10
Q

Nonviscous fluid
Self-draining
Small amount left in the tip should NOT be blown out

Transfer pipet

A

Volumetric Pipet

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11
Q

Viscous Fluids
with Etched ring

Transfer Pipet

A

Ostwald Folin

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12
Q

Transfer fluids without consideration of a specific volume

Transfer pipet

A

Pasteur Pipet

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13
Q

WITH graduations to the tip
Blowout pipet

Graduated/ Measuring Pipet

A

Serological Pipet

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14
Q

WITHOUT graduations to the tip
Calibrated between 2 marks
Self-draining

Graduated/ Measuring Pipet

A

Mohr Pipet

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15
Q

Other Graduated or Measuring Pipet

A

Ball, Kolmer and Kahn Pipet
Bacteriologic Pipet

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16
Q

Micropipettes
(<1 mL)
(TC Pipets)

A
  1. Sahli-Hellige pipet
  2. Lang-Levy pipet
  3. RBC and WBC pipets
  4. Kirk & Overflow pipet
17
Q

Relies on piston for suction creation to draw sample into a disposable tip
Piston does NOT come in contact with liquid

A

Air Displacement Pipet

18
Q

Operates by moving the piston in the pipet tip or barrel, much like a hypodermic syringe
Not require a different tip for each use

A

Positive Displacement Pipet

19
Q

Obtains liquid from a common reservoir and dispensed it repeatedly

A

Dispenser/ Dilutor Pipet

20
Q

Calibrating medium for TD pipets

A

Distilled Water

21
Q

Calibrating medium for TC pipets

A

Mercury

22
Q

Celaning solution for glassware

A

Acid dichromate

23
Q

Require Calibration at regular intervals - calibration intervals should coincide with the requirements of the laboratory’s licensing and accrediting organizations

A

Analytical Balance

24
Q

Thermometers for Freezers & Refrigerators

A

Total Immersion

25
Q

Thermometer for water baths and heating blocks

A

Partial Immersion

26
Q

Thermometer should be verified for accuracy at:

A

6 or 12 months interval

27
Q

Samples flow though a common reaction vessel or pathway
Air bubbles at regular intervals serve as separating and cleaning media

A

Continuous Flow analyzer

28
Q

Uses the force generated by centrifugation to transfer specimen and reagents

Ex: Cobas-Bio & IL Monarch

A

Centrifugal Analyzer

29
Q

Most popular and versatile analyzer
Measures only the tests requested on sample
2-6uL of sample
Capable of running multiple tests one sample at a time

Ex: Vitros, Dimension Dade, Beckman ASTRA System

A

Discrete Analyzer

30
Q

Transport of quantity of analyte or reagent from one specimen reaction into another, and contaminating a subsequent one

A

Carry-over

31
Q

All samples are loaded at the same time; a Single test is conducted on each sample

A

Batch testing

32
Q

More than one test is analyzed on a given clinical specimen

A

Parallel testing

33
Q

Any test can be performed on any sample in any sequence

A

Random Access Testing

34
Q

Multiple tests analyzed one after another on a specimen

A

Sequential testing

35
Q

A system other than manufacturer’s reagents can be utilized for measurement

A

Open reagent system

36
Q

Operator can only used the manufacturer’s reagents

A

Closed reagent system

37
Q

Provides point-to-pint delivery of specimens to the laboratory

A

Pneumatic tube delivery system

Clinical Chemistry (16 decks)

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