Difficulty: Medium

Average Score: 50%

Which of the following actions is appropriate when transporting a specimen for ABG analysis

Rationale

Placing the specimen in ice is appropriate when transporting a specimen for ABG analysis.

Transporting arterial blood gas (ABG) specimens requires careful handling to preserve the integrity of the sample. Placing the specimen on ice helps to maintain its temperature and prevents metabolic processes that could alter the gas levels, ensuring accurate analysis.

A (Collecting the specimen in an SST) YOUR ANSWER

Serum separator tubes (SST) are typically used for serum collection but are not suitable for ABG analysis. ABG specimens require heparinized or other specific tubes to prevent clotting and preserve gas levels, making SSTs inappropriate for this purpose.

B (Placing the specimen in ice) CORRECT

This action is essential for ABG specimens as it slows down cellular metabolism, which can otherwise affect the levels of oxygen and carbon dioxide in the sample. Keeping the specimen cold ensures that the results of the analysis reflect the patient's status at the time of collection, making this option correct.

C (Collecting the specimen in sodium citrate) YOUR ANSWER

Sodium citrate is an anticoagulant used primarily for coagulation studies, not for ABG analysis. Using sodium citrate can interfere with the accurate measurement of blood gases and electrolytes, as it alters the sample composition.

D (Inserting the specimen in a lightresistant package) YOUR ANSWER

While protecting specimens from light is crucial for certain tests, it is not a specific requirement for ABG samples. The integrity of ABG specimens is primarily affected by temperature rather than light exposure, making this option less relevant.

Conclusion

Proper transportation of ABG specimens is vital for accurate results, with placing the specimen in ice being the most crucial step. This action minimizes metabolic changes, ensuring reliable gas measurements. The other options either misrepresent the appropriate collection methods or do not address the critical need for temperature control during transport.

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