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Chemistry > Clinical Chemistry > Flashcards

Clinical Chemistry Flashcards

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1
Q

What sample type of used majority of the time in chemistry

A

Serum or plasma

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2
Q

What protein is found in plasma but not serum

A

Fibrinogen

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3
Q

Inert silicone gel is used as a barrier and what to type?

A

Separator tubes

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4
Q

What is the silicone separating

A

It is separating serum & plasma

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5
Q

True or false plasma separator tubes must be allowed to clock for 10 to 15 minutes before centrifugation

A

False

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6
Q

How long should a sample contain with serum separator to be allowed to clot

A

10-15 minutes

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7
Q

What are the centrifugation requirements for chemistry samples collected in an SST

A

3500 RPM at 5 to 10 minutes

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8
Q

How soon after collections of chemistry analysis ideally be completed

A

Within an hour

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9
Q

True or false the lower the temperature of perspiration the greater the stability of the chemical constituents

A

True

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10
Q

In regards to chemistry samples at what temperature is bacterial growth inhibited

A

4°C

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11
Q

In regards to chemistry samples at what temperature is bacterial growth completely stop

A

-5°C

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12
Q

At what temperature must samples be for chemistry

A

Room temp

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13
Q

Hemolyzed specimen

A

Serum appears clear read indicates red blood cells have ruptured

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14
Q

Icteric specimen

A

Serum is brownish yellow or vivid yellow indicates hepatitis or early liver diseases

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15
Q

Lipemic specimen

A

Serum is milky white color indicate the presence of lipids

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16
Q

Hemolysis causes false elevations to what chemistry analyses

A

Potassium acid phosphate lactate dehydrogenase and Aspirate aminotransferase

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17
Q

True or false actions of drugs can alter the concentration of substances being measured in chemistry drugs can also alter the chemical analysis directly

A

True

18
Q

Where is the Preferred preservative for glucose testing

A

Sodium fluoride

19
Q

What special handling requirement is needed for Billy Rubin analysis

A

Shields from light test immediately

20
Q

What chemistry analytes are affected by moderate exercise

A

Glucose creatinine and the activity of skeletal enzymes AST CK & LD

21
Q

Physical and chemical properties of what can directly all to the chemical analysis

A

Drugs

22
Q

What type of interference can happen when there’s a hemolyzed enteric or lipemic specimen

A

Interference with photometric readings

23
Q

True or false cortisol will decrease 50% from 800 to 16:00

A

False

24
Q

What kind of specimen requires to be mix well prior to testing

A

Urine

25
Q

What should shipping paperwork include

A

All specimen being shipped

26
Q

What needs to be between the primary and secondary containers when shipping a package

A

Absorbent material

27
Q

What should be reviewed from the receiving lab to ensure proper packing materials are used

A

Review O I

28
Q

What does IATA

A

International air transportation association

29
Q

Who is required to be trying to ship packages and how often do they need to be trained for

A

All lab personnel every 24 months

30
Q

Explain the different types of reagents and standards

A

Type 1 used in critical analysis
Type 2 minimum grade of water purity
Type 3 sufficient for washing dishes

31
Q

What is recommended to be checked with new receipts a reagent lots

A

Compatibility with current procedure is an expiration date

32
Q

True or false controls can be used to troubleshoot your quality controls fall out of range or when reagent lot number changes

A

False

33
Q

What actions are taken when performing correct of actions

A

Repeat controls once makes new controls troubleshoot analyzers
Call customer support do not report patient results

34
Q

What are

A

Homogeneous Mixtures of two or more substances

35
Q

Normal solution

A

The number of Graham equivalent weights per 1000 mL of solution

36
Q

Molar solution

A

The amount of solute in each 100 mL of solution

37
Q

Percent solution

A

The number oh grandma like your weights per 1000 mL a solution

38
Q

What is used to determine the concentration of an unknown solution

A

Titration formula

39
Q

When using the titration formula how many factories will be known and how many will be alone

A

Three or known one is unknown

40
Q

What are the three different classifications of biohazard Material for shipment

A

Infectious substances
Diagnostic substances
Biological substances

Chemistry (8 decks)

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