Clinical chemistry, assignment help

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Question Description

Prepare powerpoints on Pre-analytical laboratory errors

Tutor Answer

School: UC Berkeley


Pre-analytical Laboratory
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Three phases of laboratory testing:
pre-analytical, analytical and post-analytical
Pre-analytical—specimen collection, transport
and processing
Post-analytical—testing results transmission,
interpretation, follow-up, retesting.

Phlebotomy Errors

Phlebotomy is a highly complex skill requiring
expert knowledge, dexterity and critical
It is estimated that one billion venipunctures are
performed annually in the U.S.
Phlebotomy errors may cause harm to patients
or result in needlestick injury to the

Pre-analytical errors

Pre- and post-analytical errors are estimated to
constitute 90% of errors
Errors at any stage of the collection, testing and
reporting process can potentially lead to a
serious patient misdiagnosis
Errors during the collection process are not
inevitable and can be prevented with a diligent
application of quality control, continuing
education and effective collection systems

Types of Collection Errors

Patient Identification

Phlebotomy Technique

Test Collection Procedures

Specimen Transport

Specimen Processing

Patient Identification Errors
Errors in correctly identifying the patient
are indefensible
 Reasons for patient identification errors

 Proper

positive patient identification
procedures not followed
 Patient

identification from identification bracelet
 Patient identification by asking patients to state or
spell their full name (inpatients/outpatients)
 Patient identification by staff or family member if
patient unable to identify him/herself

Patient Identification Errors

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