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clinical chemistry > LABORATORY SAFETY, BASIC UNITS AND CONVERSION FACTOR > Flashcards

LABORATORY SAFETY, BASIC UNITS AND CONVERSION FACTOR Flashcards

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1
Q

WHAT IS ISO STANDS FOR?

A

INTERNATION ORGANIZATION FOR STANDARDS

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2
Q

SAMHSA STANDS FOR?

A

SUBSTANCE ABUSE AND MENTAL HEALTH SERVICES ADMINISTARTION

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3
Q

Convert 1 uL to dL?

A

1 X 10-5

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4
Q

safety features built into the overall design of a product

A

Engineering control

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5
Q

The absorbance of a solution does not increase as its concentration increases

A

There is a loss of linearity due to stray light

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6
Q

Contains the same reagents used for the test; adjust the spectrophotometer to 100% (or 0 absorbance); the instrument automatically subtract the color contributed by the reagent from each reading. Thus correcting color contribution of the reagents

A

Reagent blank

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7
Q

the ff. measure trace metals except
a. Spectrophotometer
b. AAS
c. FEP
d. Turbidimetry

A

turbidimetry

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8
Q

Oxidation reactions of luminol, acridinium esters, and dioxetanes which create rapid increase in intensity of emitted light followed by a gradual decay?

A

Chemiluminescence

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9
Q

True about electrophoresis

a. Proteins will stop migrating when it reach the isoelectric point

b. The pH of the buffer used in standard electrophoresis is pH 6.5
c. Plasma is used more often than serum
d. Standard electrophoresis separates protein into 12 zones

A

Proteins will stop migrating when they reach the isoelectric point

A - Isoelectric point (pI) – pH where protein has no net charge
B - pH 8.6
C – serum is used
D- 5 zones (Albumin, a1 globulin, a2 globulin, beta globulin, and gamma)

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10
Q

The gold standard for drug testing?

A

The sample is volatilized, then separates the various components of the sample based on size and/or polarity. The separated components then go into a mass selective detector

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11
Q

What method is being described: When oxygen (oxidant) diffuses to the membrane, it will accept electron from a reducing agent (electron donor), thus the flow of electron corresponding the O2 concentration is being measured

A

Amperometry

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12
Q

Using resin to selectively removed ions, its product is ideal for electrolyte study?

A

Deionization

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13
Q

How to derive the equivalence from grams?

A

Divide the gram molecular weight by its (the compound) valence.

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14
Q

Most popular and versatile analyzer –measures only the tests requested on a sample

A

. Discrete

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15
Q

To confirm a that a pipet needs “blow out”, one must look for

A

Two thin rings near the mouthpiece of the pipet

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16
Q

Commonly used in verification of pipette calibration?

A

water

17
Q

Variation according to sleeping and waking times

A

Diurnal

18
Q

The major concern in specimen collection

A

Patient identification

19
Q

Analyte that increases in strenuous exercise that can be life threatening

A

Potassium

20
Q

specimen for glucose is diluted 1:5. The value of the diluted specimen is 100 mg/dL. What should be done to correct the dilution?

A

Multiply the diluted specimen value to the reciprocal of dilution

21
Q

Electrolytes, glucose, BUN, creatinine, and osmolality examinations been performed on a patient suspected of ingesting ethanol. What can be done to help reveal this condition without additional tests?

A

Compute the difference between the measured osmolality and the calculated osmolality

22
Q

The predominant designation for temperature that is adopted by the SI?

A

Kelvin

23
Q

Certifies laboratories to conduct forensic drug testing?

A

SAMHSA

24
Q

Pico is

A

10-12

25
Q

The conversion factor of glucose?

A

0.0555

26
Q

Measurement of assay at two different wavelength

A

Bichromatic analysis

27
Q

The predominant practice for temp measurement uses the?

A

Celsius

28
Q

conversion factor of bilirubin

A

17.1

29
Q

conversion factor of creatinine

A

88.4

30
Q

conversion factor of bun

A

0.357

31
Q

conversion factor of Na, K, Cl

A

1

32
Q

conversion factor of cholesterol

A

0.026

33
Q

conversion factor of thyroxine

A

12.9

34
Q

conversion factor of total protein

A

10

35
Q

conversion factor of triglyceride

A

0.0113

36
Q

Conversion factor of Uric acid

A

0.595

clinical chemistry (7 decks)

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