1.1.6 Basic Principles and Techniques (Quality Assurance: Lab testing process, QC) Flashcards

1
Q

Quality Management, Quality Assurance, Quality Control

Is this the hierarchy of order?
T or F

A

T

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2
Q

Include test requisition, patient preparation, patient identification, specimen collection, labelling, specimen transport, specimen reception, handling, and preparation

a. Pre-analytical
b. Analytical
c. Post-analytical

A

a

More on Samples and patient related

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3
Q

One of the essential aspects in the Analytical phase?

A

Quality control (Controls)

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4
Q

Include reagents, preventive maintenance of equipment, calibration, analysis of samples, and QUALITY CONTROL

a. Pre-analytical
b. Analytical
c. Post-analytical

A

b

More focus on lab equipment and controls

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5
Q

Include verification of calculations and reference ranges, flagging and notification of panic/critical values, delta checks, and reporting of results

a. Pre-analytical
b. Analytical
c. Post-analytical

A

c

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6
Q

An algorithm in which a current laboratory result is compared with results obtained on a previous specimen from the same patient

A

Delta check

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7
Q

Delta checks detect _______ and ________ errors

A

Pre-analytical and analytical

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8
Q

Closeness of the result to the true or actual value

a. Reliability
b. Accuracy
c. Precision

A

b

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9
Q

Ability to produce a series of results that agree closely with each other

a. Reliability
b. Accuracy
c. Precision

A

c

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10
Q

Ability to maintain ACCURACY and PRECISION over an extended period of time during which equipment, reagents, and personnel may change

a. Reliability
b. Accuracy
c. Precision

A

a

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11
Q

Precision is also known as?

A

Repeatability or reproducibility

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12
Q

Commonly expressed in terms of coefficient of variation

a. Reliability
b. Accuracy
c. Precision

A

c

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13
Q

Repeatability means within-run precision

Reproduciblity means in between run or interlab precision

T or F

A

T

Repeatability indicates repeating series of same or almost same result with the same equipment

Reproducibility indicates regardless of personnel or equipment or places as long as it can reproduce the same result

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14
Q

Internal QC Involves the analysis at Least _____ of control every ________

A

2

24 hrs

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15
Q

In Internal QC, Initial control limits are established by analyqing control materials for at least ____ consecutive days or runs

A

20

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16
Q

Important for the daily monitoring of accuracy and precision of analytical methods

a. Internal QC
b. External QC

A

a

17
Q

Involves testing blind samples (unknown concentration of analytes) sent periodically by regulatory agencies to participating laboratories

a. Internal QC
b. External QC

A

b

18
Q

Important for maintaining the long-term accuracy of analytical methods

a. Internal QC
b. External QC

A

b

19
Q

What is the Reference Laboratory for clinical chemistry?

A

Lung Center of the Philippines

20
Q

Standard Deviation Index (SDI) is also known as?

A

z score

21
Q

Proficiency testing

a. Internal QC
b. External QC

A

b

22
Q

SDI greater than 2 is a poor performance

T or F

A

T

23
Q

Formula for SDI?

A

SDI = (lab result - mean) / standard deviation