Culture Tubes

Types of Culture Tubes Used in Laboratory

 

Red Capped Culture Tubes

It is used to take the blood required for tests performed in biochemistry laboratories. These tubes are designed for fast, clear, and easy separation of plasma.

Purple Capped EDTA Culture Tubes

It is used to control the patient's complete blood count results. It is used when whole blood or plasma is required as test material. In order to prevent clots from forming in the tubes, as soon as the blood is taken, the tube is slowly turned upside down 5-6 times and mixed. Shaking should be strictly avoided.

Blue Capped Coagulation Tubes

It is used to measure blood coagulation. In order to prevent clot formation in the tubes, as soon as the blood is taken, the tube is slowly turned upside down 5-6 times and mixed. Shaking should be strictly avoided. Particular attention should be paid to filling the blood up to the marked line during blood collection.
•Grey Capped Glucose Tubes: suitable for glucose and lactate detection.
•Black capped Vacuum Sedimentation Tubes: It is used to determine the sedimentation rate of blood. A citrate tube with a black cap is used for the sedimentation test. In order to prevent clots from forming in the tubes, as soon as the blood is taken, the tube is slowly turned upside down 5-6 times and mixed. Shaking should be strictly avoided.
•Navy Blue Capped Trace Element Tubes: copper, zinc, lead, etc. used to test elements.
•Yellow capped Gel Tubes: They are used to collect the blood required for the tests performed in biochemistry laboratories. These tubes are designed for rapid, clear, and easy separation of serum and plasma. They are used when serum is required as test material. The gel in the tubes creates a physical barrier between the serum and blood cells after centrifugation and accelerates blood coagulation thanks to the silica particles on the tube wall. It should be gently inverted 5-6 times so that the blood comes into good contact with the silica particles in the wall of the tube; The culture tubes must never be shaken!

In order for the patient to receive the right treatment and care, it is to ensure that the sample reaches the relevant laboratory as soon as possible in an appropriate transport container, without being damaged, and that the sample is stored under suitable conditions so that it is not damaged until it is processed.

1. The rules specified in the "Medical Microbiology Laboratory Test Guide" are taken into account for the proper transfer of samples.
2. Pneumatic system is used in the transfer of samples to the Central Laboratory reception unit, and it is not appropriate for patients and their relatives to bring samples to the laboratory.
3. In laboratories where there is no pneumatic system, the transfer of the sample is provided by the hospital attendant.
4. While blood samples are taken in all clinics and sampling units and transport medium samples taken with swab sticks are sent by the pneumatic system; It is not appropriate to transfer samples such as urine, stool, sterile body samples (CSF, pleural fluid, peritoneal fluid, tissue samples, etc.) with the pneumatic system. Such samples are sent to the laboratory by the hospital attendant.
Points to be considered in this process:
5. Unidentified / barcode-free samples should not be sent to the laboratory.
6. The samples must be transferred together with the requested papers. The name on the request sheet and the sample type must be the same as the name and sample type on the sample.
7. Samples that have not been tested should not be sent to the laboratory.
8. While sending the sample with the pneumatic system, it should be placed in the sponge inside the capsule.
9. Broken or cracked (damaged) tubes/containers should not be sampled.
10. Expired sample tubes should not be used.
11. The correct sample should be taken into the correct sample container so that the transfer is carried out without any problems.
12. The sample culture tube taken should be delivered to the laboratory with its mouth tightly closed.
13. The exterior of the samples and claim forms should not be contaminated with the sample.
14. Samples that will be sent to laboratories where there is no pneumatic system and samples that are at risk of spillage (urine, etc.) should be transferred as “DIK” with their lids tightly closed so that they do not tip over.
15. During the transfer process, the employee should wear protective gloves.
16. After the samples are taken, they should be delivered to the laboratory without waiting.
17. During the transfer, hard and sudden movements should be avoided, and care should be taken not to shake the samples.
18. Samples should be handed over to the relevant employee at the laboratory reception unit.
19. Attention should be paid to the cleanliness of the transport containers. Every evening at the end of the shift, it is cleaned first with detergent water and then with 1% bleach. If the container is contaminated with biological material such as blood and urine, gauze, paper towels, etc. moistened with 10% bleach should be used on it. closed with 15 min. cleaned after waiting.
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