Possible Causes For Out-of-control Conditions

Question 1

Clot or debris in pipette

Answer 1

Type of error: systematic or random error
Nature: transient or persistent

Question 2

Inadequate wash

Answer 2

Type of error: systematic or random error
Nature: transient or persistent

Question 3

Incorrect liquid transfer volumes

Answer 3

Type of error: systematic or random error
Nature: transient or persistent

Question 4

Temperature control

Answer 4

Type of error: systematic or random error
Nature: persistent

Question 5

Electronic noise

Answer 5

Type of error: systematic or random error
Nature: transient or persistent

Question 6

Calibration problem

Answer 6

Type of error: systematic error
Nature: persistent

Question 7

Calibrator deterioration

Answer 7

Type of error: systematic error
Nature: persistent

Question 8

Reagent deterioration

Answer 8

Type of error: systematic error
Nature: persistent

Question 9

Deterioration of QC material

Answer 9

Type of error: systematic error
Nature: persistent

Question 10

Lack of calibration fonowing major maintenance

Answer 10

Type of error: systematic error
Nature: persistent