Я подумал о том, что, возможно, имеется в виду выполненная два раза на момент составления выписки или истории болезни рентгенография, на которой обнаруживается полость с уровнем жидкости.

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Note added at 13 mins (2023-05-02 10:35:01 GMT)
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Я еще думал о рентгенографии в двух проекциях, но думаю, что не о проекциях речь, формулировки такие не встречал для проекций:

Thanks for the info.
For the X-ray, my wife has gone for total 4 times (each two times in a row) as follow:
1. Two times X-Ray (Front and Back) on the first Medical Exam on Mar 3, 2021
2. Two times X-Ray (Front and Back) after the Sputum Culture Test was completely done on May 3, 2021
Now, she is scheduled for another Front or PA (Postero-Anterior) Chest X-Ray on June 2, 2021.

I think if I'm not mistaken, I ran across in this forum that someone was scheduled to get a Sputum Culture Test that would delay his study as this kind of test needs 60 days to get result. Then he submitted his old X-Ray Chest through his PP and he did not need to go through this Sputum Culture Test.
Let me search again his post on this.

At any rate, I don't mind to follow as this is the procedure. Just my curiosity.

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Note added at 14 mins (2023-05-02 10:35:40 GMT)
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ery bad experience in castle hill centre’ for both my daughter and husband teeth check!
They did two times X-ray for my daughter and the first time they said it only need to do once and they will have record but next time, my husband took her in and they did another X-ray (both have been charged)
only use assistant to check my husband teeth when he said his teeth is feel pain but the assistant asks him to come back again! And washing teeth charged more than $400!
They just took a lot of money and didn’t do too much jobs!, https://au.oceaniabiz.com/new-south-wales/clear-dental-castl...



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Note added at 15 mins (2023-05-02 10:36:44 GMT)
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Worse place ever....had a bad fly and end up in emergency ...they did two times x-ray and excuse is that the doctor could not read the first one...however they did charge me two times for it ,even was their Error in work ...never again here

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