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01 The first stepThe subject maintains normal breathing. First, take a breath, hold the breath for 10 seconds, then exhale the first half of the air, and then blow the end of the lungs into the blue air bag until the air bag is full, and then cover it tightly. Air bag.
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02 The second stepThe subject was given a urea 13C capsule with 80-100ml of cold drinking water.
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03The third stepWait 30 minutes before collecting the second bag of gas.
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04 Step 4Collect the air for 30 minutes and blow it into the pink air bag as in the first step.
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05 Step 5The two bags of gas are handed over to the medical staff, and the detection is performed on a dedicated instrument, and the instrument automatically gives the detection result.