Guidelines for Collecting Blood Specimens in Multiple Tubes: Proper Identification, Order of Draw, and Safety Precautions

Summary

• Proper identification of patients and labeling of tubes is crucial in preventing errors in the lab.
• Follow a specific order when collecting blood tubes to maintain the accuracy of Test Results.
• Adhere to safety precautions to protect both the patient and the phlebotomist during the blood collection process.

Introduction

Collecting blood specimens in multiple tubes for laboratory testing is a common practice in medical labs across the United States. This process requires adherence to specific guidelines to ensure the accuracy of Test Results and the safety of both the patient and the phlebotomist. In this article, we will discuss the guidelines that should be followed when collecting blood specimens in multiple tubes for laboratory testing.

Proper Identification and Labeling

One of the most important guidelines to follow when collecting blood specimens in multiple tubes is proper identification and labeling. It is crucial to correctly identify the patient before collecting any blood samples to prevent errors in the lab. The following steps should be taken to ensure proper identification and labeling:

1. Ask the patient to state their full name and date of birth.
2. Check the patient's identification bracelet or ask for another form of identification, such as a driver's license.
3. Label each blood tube with the patient's name, date of birth, and a unique identifier, such as a medical record number.
4. Verify that the information on the label matches the information provided by the patient.

Order of Draw

Another important guideline to follow when collecting blood specimens in multiple tubes is to adhere to a specific order of draw. The order of draw refers to the sequence in which blood tubes are filled during the collection process. Following a standardized order of draw helps maintain the accuracy of Test Results and reduces the risk of sample contamination. The following is a common order of draw used in medical labs:

1. Yellow or SPS tubes - for blood cultures
2. Light blue tubes - for coagulation studies
3. Red or gold tubes - for chemistry tests
4. Green tubes - for general chemistry tests
5. Lavender or purple tubes - for hematology tests
6. Gray tubes - for glucose tests
7. Other tubes as required for additional tests

Safety Precautions

When collecting blood specimens in multiple tubes, it is essential to follow safety precautions to protect both the patient and the phlebotomist. The following safety guidelines should be followed during the blood collection process:

1. Wear gloves at all times to prevent exposure to bloodborne pathogens.
2. Use a new, sterile needle and syringe for each blood specimen collection.
3. Properly dispose of sharps in designated sharps containers to prevent Needlestick Injuries.
4. Apply pressure to the Venipuncture site after collecting blood to prevent bleeding and hematoma formation.
5. Label biohazard bags containing used supplies and dispose of them according to facility protocols.

Conclusion

Collecting blood specimens in multiple tubes for laboratory testing is a routine procedure in medical labs. By following the guidelines outlined in this article, phlebotomists can ensure the accuracy of Test Results, protect the safety of both the patient and themselves, and maintain the quality of the specimens collected. Proper identification and labeling, adherence to the order of draw, and following safety precautions are key aspects of collecting blood specimens in multiple tubes.

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