Final answer:
Sputum collections are usually done in the morning for accurate results. Patients may be asked to provide sputum samples for several consecutive mornings.
Step-by-step explanation:
Sputum collections are usually done in the morning to obtain the most accurate results. Depending on the purpose of the collection, sputum may be collected for several consecutive mornings. For example, if a patient is suspected to have tuberculosis, they may be asked to provide sputum samples for three consecutive mornings to increase the chances of detecting the bacteria.