Clinical Phases of Testing in the Laboratory Flashcards
Test Ordering
Pre
Specimen Collection
Pre
Transporting the Specimen
Pre
Entering Px Info
Pre
Centrifuging
Pre
Separating and Aliquoting Plasma
Pre
Delivery to Laboratory Loc
Pre
Factors affecting Lab Results
Controllable and uncontrollable
Commercial Controls
Analytical
Record Keeping
Analytical
Specimen Analysis
Analytical
[Components of an Analytical Run]
Tube only, no serum, no reagent
Air Blank
[Components of an Analytical Run]
Cuvette with distilled water only
Water Blank
[Components of an Analytical Run]
Reagent Only, no serum
Reagent Blank
[Components of an Analytical Run]
Nothing but serum in the cuvette
Serum Blank
[Components of an Analytical Run]
also called Reference Material
pure solution of known exact ___
Standard, concentration
[Components of an Analytical Run]
Normal in a spectrophotometer
usual color
Control Normal
Blue
[Components of an Analytical Run]
Elevated in a spectrophotometer
Control Pathologic
Red
[Components of an Analytical Run]
Px Specimen
Unknown Specimen/ Patient’s Serum
[Sources of Control]
labs that prepare their own control should collect a large pool sufficient to last ___.
Control should be analyzed at least ___ times to obtain mean value
Accepted: +/- __ SD
Pooled Control Sera
1 year
20
2
[Sources of Control]
either prepared from human serum or from ___-based products
have an established expected range
Commercial Control Sera
Bovine
Closeness to true value
Accuracy
Closeness of Values
Precision
Sources of Errors in Post-Analytical Phase
Interpretation and Reporting out Specimen Results
Physician Contact
Reference Ranges
[Proper Waste Disposal]
Black
Non-infectious, Dry waste
[Proper Waste Disposal]
Green
Non-infectious, Wet Waste
[Proper Waste Disposal]
Yellow
Pharmaceutical, Pathological, Infectious Waste
[Proper Waste Disposal]
Orange
Radioactive Waste