The bronchoalveolar lavage procedure is generally safe, but there is a risk of complications, such as bleeding or infection. The healthcare provider should be informed if the patient has any allergies, bleeding disorders, or lung conditions, as these may increase the risk of complications. The patient may also experience some discomfort during or after the procedure, such as coughing, throat irritation, or shortness of breath. It is important to follow the healthcare provider’s instructions regarding any medication or dietary restrictions before the test. It is also important to note that a negative test result does not necessarily mean that there is no fungal infection present. This is because the presence of fungi may not always be detected in a sample, particularly in cases where the fungal elements are low in concentration or the sample was not collected properly. In some cases, a follow-up test may be needed to confirm the diagnosis.