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Flashcards in Module 6 Deck (6)
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1
Q

What preanalytical factors can’t be controlled by the lab?

A

Specimen collection- pt and sample ID, timing, pt prep, pt positioning, use of tourniquet, clenching and relaxing fist, venous, arterial or capillary blood, site cleansing, collection technique, additives/preservatives, IV contamination

Specimen transportation and processing- transport, processing, storage

2
Q

What preanalytical factors can not be controlled by the lab?

A

Age and gender

Environment

Pt condition or disease

3
Q

How are preanalytical errors detected?

A

Preanalytical- specimen labelling errors should be detected

Analytical- failed delta check, result doesn’t correlate with other pt result, appearance doesn’t correlate with expected result

Postanalytical- contact from doctor or unit to inquire about a result that doesn’t fit or indicate they received a test that wasn’t ordered

4
Q

How are preanalytical errors troubleshot?

A

Examine specimen

Try to correlate results to pt condition or other test results for the pt

Feasibility- are results compatible with life

Look for comments/info on req indicating specimen collection info, pt condition, etc

Use FIRED

5
Q

What strategies are there to prevent or reduce errors due to preanalytical factors?

A

Policies, procedures, training and competence

Test-specific collection instructions

Specimen rejection

Managing interferences

Delta check and correlation

Reference intervals

6
Q

How can preanalytical factors be divided?

A

Those the lab can control and those it can’t