PROCEDURE OF ACCESSIONING SPECIMENS
Procedures of Accessioning Specimens
Definition of Terms
·
Accessioning of specimens
- Is a process of qualifying specimens for
laboratory investigation
Criteria’s for accessioning
·
Request form should be well filled with;
- Health facility name
- Hospital Number
- Name of patient
- Date
- Age
- Sex
- Address
- Ward Number
- Clinical Note
- Laboratory investigation
- Time of request
·
Sufficient quantity of specimen
·
Right container
·
Condition of the specimen
Criteria’s of Rejecting
Specimens
· Rejecting
criteria
- Quantity is not sufficient
- Wrong container
- Long transport time
- Wrongly or incomplete filled request form
- Condition of the specimen is not ideal for the
test (haemolysed blood, dried stool, clots,
- Unlabelled/Mislabeled specimen
·
Example
of Specimen Rejection Form.
- Hospital Registration Number: …………………………Ward /
Clinic …....……
- Patient Names (in full): ……………………………………………………......…..
- Date Sample Received: …………………………… Time: ………………......….
- Description of Problem encountered: (in brief):
..................................................
- Corrective Action(s) Needed: …………………………………………….....…….
- Form Completed by: ………………Signature: ……………Date:
…...................
- For Clinic / Ward: Corrective Action taken
……………………………...………
- Corrective Action taken by: Name ………………………………………...…….
- Signature: ………………………Date: …………………Time……………….
- Return this form to the laboratory with
specimen indicating corrective actions taken
·Rejection
Codes
1
|
No specimen/sample received
|
13
|
No
specimen/sample ID
|
2
|
Quantity
not sufficient
|
14
|
No
specimen/sample ID cannot be established
|
3
|
Haemolyzed
|
15
|
Specimen/sample
ID illegible
|
4
|
Lipemic
|
16
|
Collection
site inappropriate
|
5
|
Damaged-broken
or leaked in transit
|
17
|
Specimen
/sample type unacceptable for test
|
6
|
Damaged-contaminated
|
18
|
No
test requisition received
|
7
|
Damaged-expired
transport media
|
19
|
N
test ordered on requisition
|
8
|
Damaged-improper
preservation
|
20
|
No
collection date requisition
|
9
|
Damaged-improper
transport media
|
21
|
No
specimen / sample collection site on requisition
|
10
|
Damaged-improper
temperature
|
22
|
Test
not available
|
11
|
Damaged-lab
accident, unsalvageable
|
23
|
Clotted
Sample
|
12
|
Sample
too old
|
Importance of Accessioning
·
Importance
of Accessioning are
o
Helps to get good results
o
It helps to avoid mixing of specimen
o
Helps track down specimen/results
o
Helps mismanagement of specimen
o
Helps to get results at right time
o
Helps patient to get treatment at right
time
o
Helps the laboratory workers to plan
their work
o
Helps to process the right specimens
o
It helps to keep records
Procedure of Accessioning
Specimen
· Correct
specimen-quantity
o
Quantity of specimen required for
investigation
§ Blood-3ml-5ml
§ Urine-15ml-20ml
§ Stool-
teaspoonful
§ Sputum-5ml
· Verify
information on the request form
o
A request form is used to write down
basic information about the patient and to request for a laboratory test.
Information required are;
§ Health
facility name
§ Hospital
Number
§ Name
of patient
§ Date
requesting
§ Age
of the patient
§ Sex
of the patient
§ Address
of the patient
§ Ward
Number
§ Clinical
Notes
§ Laboratory
investigation
· Verification
of the Specimen Label
o
Hospital Number
o
Name of patient
o
Date requesting
o
Ward Number
o
Name of collector
Documentation of Accessioning
Report
· Proper
entering of information
- All information should be entered properly in
the register book
§ Specimen
information
§ Patient
information
§ Cause
of specimen rejection
§ Action
taken
- Proper handling of
information
- All information should be kept safely for
reference
- Helps in statistics analysis
- Improves quality of work
o
Proper
storage of register books
- Helps tracking down information
o
Proper use computer program for storing
information
§ Use
excel program
Key Points
·
Accessioning of specimens is a process
of qualifying specimens for laboratory investigation
·
The following Criteria’s should be
adhered during Accessioning of specimens
- Request form should be well filled with
- Sufficient quantity of specimen received
- The specimen should be collected in the right
container
- Assessment of the specimen
· Criteria’s
of Rejecting Specimens
- Quantity is not sufficient
- Wrong container
- Long transport time
- Wrongly or incomplete filled request form
- Condition of the specimen is not ideal for the
test (haemolysed blood, dried stool, clots,
- Unlabelled/Mislabeled specimen
· Documentation
of Accessioning Report
- All information should be entered properly in
the register book
§ Specimen
information
§ Patient
information
§ Cause
of specimen rejection
§ Action
taken
- Proper handling of information
§ All
information should be kept safely for reference
§ Helps
in statistics analysis
§ Improves
quality of work
o
Proper
storage of register books
§ Helps
tracking down information
o
Proper use computer program for storing
information
§ Use
excel program
Evaluation
·
Explain accessioning of laboratory
specimen
·
List four criteria’s of rejecting
laboratory specimens
·
List four importance of accessioning of
laboratory specimens
References
·
F.J. Baker, R.E. Silverton (2001):
Introduction to Medical Laboratory Technology, 7th Edition, Oxford University
·
Monica Cheesbrough (1981): Medical
Laboratory Manual for Tropical Countries Volume I, 2nd Edition
Butterworth & Co. (Publishers) Ltd; and
·
Monica Cheesbrough (2002): District
Laboratory Practice in Tropical Countries Part 1 & 2, Cambridge University
·
WHO(2003) Manual for Basic Techniques
for a health laboratory.2nd Ed. Word Health Organization
Comments
Post a Comment