This document provides information on patient reception, sample collection, and sample processing procedures in a laboratory department. It discusses how patient reception is the first step, where samples are received and registered with identifying information. Proper sample collection and handling is also important, with specifics provided on blood and urine sample collection techniques. Finally, it outlines the key steps once samples enter the laboratory, including verifying information, recording details, centrifuging blood samples, and criteria for accepting or rejecting samples.

1. ADABRAKA POLYCLINIC
LABORATORY DEPARTMENT.
GROUP 3

2. objectives
• introduction to patient reception, sample collection and
processing
• procedure for sample collection
• processing of samples after sample collection

3. Patient reception
• Patient reception is key in every good laboratory setting.
Patient reception is where patient samples are received
and logged in for testing. This usually includes registering
samples with a unique identifier and assigning them to
specific tests.
• the reception area is typically the first stop for samples
coming into the laboratory

4. Patient reception
• reception staff must be well trained in proper patient
reception procedures.
• proper reception is a critical part of the laboratory process
and is essential for accurate and timely results
• the reception is where samples are sorted out and held
temporarily before being sent to the laboratory for
analysis.

5. Patient reception
• patient name, age, sex and other information are obtained
at the reception for patient registration.
• any error in the reception will affect all other procedures in
the lab

6. sample collection and processing procedures
• Proper specimen collection and handling is an integral
part of obtaining a valid and timely laboratory test result.
• Specimen must be obtained in the proper tubes or
containers, correctly labelled and then promptly
transported to the laboratory.

7. Sample collection

8. Sample collection (blood)
VENIPUNCTURE PROCEDURE
• identify the patient using the full name and birth date.
Check these against the request form.
• check the requisition form for requested tests and other
patient information. Assemble your tubes, syringe and
other materials to be used
• wear gloves, select the site for the venipuncture, apply
your tourniquet and disinfect the area using 70% alcohol
solution

9. Sample collection
• Swiftly insert the needle through the skin into the lumen of
the vein at an angle of 30-45 degrees
• fill the tubes in an order of draw to avoid contamination
• remove the tourniquet when the last tube is being filled
• place gauze or dry cotton on the puncture site, remove
the needle and apply adequate pressure to avoid the
formation of hematoma

10. Sample collection
• apply bandage and dispose contaminated materials in
designated containers
• label tubes appropriately

11. Sample Collection Illustration

12. Do’s and don’ts in sample collection(blood)
• avoid patient identification errors
• draw samples into the collection tubes in the proper
sequence
• use the right tubes for collection
• mix samples in tubes by gentle inversion immediately
after collection
• do not decant specimens from one container into another
• deliver specimens to the laboratory promptly
• broken collection tubes should not be used for sample
collection

13. Sample collection

14. Sample collection(urine)
• A clean-catch, midstream specimen is required for routine
urine analysis at the lab
• This should be obtained by allowing some amount of the
urine to pass out and then, catching the middle portion
into a sterile container and the rest left to pass out
• proper labelling is also important in urine sample
collection.

15. Sample processing
once a sample enters the laboratory for analysis,there are a
number of steps needed prior testing
• Verify the sample is properly labelled, adequate in
quantity, in good condition and appropriate for the test
requested.
• record sample information into a register after accepting
the sample

16. Sample processing
• blood samples obtained in tubes with no anticoagulants
are left to stand for about 30 minutes to allow complete
clotting after sample collection before they are centrifuged
to separate the serum from the cells
• blood samples must be processed within 2 hours after
collection to obtain accurate and valid results

17. Sample processing
The laboratory should closely follow sample acceptance
and rejection criteria. These citeria include;
• rejecting samples with improper labelling
• insufficient samples
• hemolysed samples
• broken or leaking tube or container
• sample collected in wrong tube or containers
NB: A good sample produces accurate and valid results