After hearing that something is visible in your lung, your mind goes blank. A shadow being caught on CT or X-ray is not the end; to confirm exactly what it is, you ultimately have to take out tissue and look at it under a microscope. The thing that comes up most often in that process is bronchoscopy. It is a test in which a thin tube is inserted into the airway through the nose or mouth to look directly inside, and a small piece is taken from the suspicious area. It sounds frightening just from the name, but in reality it often ends faster than you'd think.
From the day before the test, you are usually instructed to fast for several hours. The stomach needs to be empty so that vomiting during the test, or food going down into the airway, can be prevented. When you arrive at the hospital, your blood pressure and oxygen levels are measured, and an anesthetic spray is applied to the throat and the inside of the airway. This is a bit bitter and numbing, but this very step is the key to reducing pain, so it is bearable. Depending on the person, a sedative may be used as well. When you receive the drowsy medicine and undergo the test in a half-asleep state, quite a few people say afterward, "Is it already over?"
The most common reaction while the tube goes in is coughing. The airway instinctively tries to push out a foreign object when one enters, so coughing is a natural thing. The medical team keeps talking to you from beside you, saying "Breathe slowly," and matching that rhythm makes it much more comfortable. While looking at the inside of the bronchus on a screen, the doctor finds the abnormal spot and, right there, scrapes cells with a brush (cytology), takes tissue with small forceps (biopsy), or instills and withdraws saline to collect secretions. If the area is deep or small, they aim precisely while also viewing ultrasound or X-ray images.
The test itself is at most around 30 minutes. The spot where tissue was taken is a very tiny wound, so it mostly heals quickly. However, having a little blood mixed in the phlegm afterward is a common thing, so there is no need to be too alarmed. Because the throat is numb from the anesthesia, you have to hold off on water and food for an hour or two. If you feel that saliva doesn't go down well, you may choke, so it is safer to wait until sensation returns. If you received a sedative, it is best to avoid driving that day and to go home with a companion.
The removed tissue is sent to the pathology department and analyzed over several days. The time spent waiting for the result is, in fact, a harder stretch for the patient than the test itself. It could be good news, or news that needs more explanation, but either way it is clear that an accurate diagnosis is needed before the next treatment direction can be set. If your chest feels tight, you are short of breath, you have a fever, or a lot of blood comes out mixed in, you must inform the hospital right away, even while waiting for the result.
What is written here is only a general flow, and the methods and preparations differ slightly from hospital to hospital. As for what suits your own condition, in the end the medical team in charge of the test knows best. Let's write down our questions in advance, ask them all on the day, and come back.