Factors Affecting Blood Storage: Temperature, Anticoagulants, Time Elapsed

Summary

• Blood can typically be stored in a collection tube for up to 48 hours before testing.
• Storage conditions, such as temperature and time elapsed, can impact the quality of the blood sample.
• Proper handling and storage of blood samples are crucial to ensure accurate Test Results.

Introduction

When it comes to medical testing, blood samples are one of the most common types of specimens collected. Before these samples can be analyzed, they are typically stored in collection tubes to preserve them until they can be processed in the laboratory. However, how long can blood be stored in a collection tube before testing? Let's delve into this topic to understand the factors that can impact the quality of blood samples during storage.

Factors Affecting Blood Storage

Temperature

One of the most critical factors that can impact the quality of blood samples is temperature. Ideally, blood samples should be stored at a specific temperature range to ensure stability and minimize the risk of degradation. For example, refrigeration at 4°C is commonly used to preserve blood samples for a longer period.

Anticoagulants

Anticoagulants are substances added to blood collection tubes to prevent blood from clotting. These additives play a crucial role in maintaining the integrity of the blood sample during storage. Different anticoagulants have varying effects on the stability of the sample, so the choice of Anticoagulant can impact how long blood can be stored before testing.

Time Elapsed

The amount of time elapsed since the blood sample was collected can also affect its quality. While some tests can be performed on fresh blood samples, others may require immediate processing to prevent changes in the sample. It's essential to consider the time elapsed when determining how long blood can be stored before testing.

Storage Guidelines

Following proper storage guidelines is crucial to maintaining the quality of blood samples before testing. Here are some general recommendations for storing blood samples in collection tubes:

1. Store blood samples at the appropriate temperature recommended for the specific test being conducted.
2. Avoid exposure to light and heat, as they can degrade the blood sample.
3. Label the collection tube with the patient's information and the date and time of collection to track the storage duration accurately.
4. Handle the blood sample with care to prevent contamination or damage during storage.

Impact on Test Results

The quality of the blood sample can significantly impact the accuracy of Test Results. Improper storage of blood samples can lead to changes in the composition of the sample, which may affect the outcome of laboratory tests. To ensure reliable results, it's essential to follow storage guidelines and prevent any factors that could compromise the integrity of the blood sample.

Conclusion

In conclusion, how long blood can be stored in a collection tube before testing depends on various factors such as temperature, time elapsed, and the type of Anticoagulant used. Proper storage and handling of blood samples are crucial to ensuring accurate Test Results. By following storage guidelines and minimizing potential sources of contamination or degradation, healthcare professionals can preserve the quality of blood samples and obtain reliable Test Results.

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