At one and a half years old, how many days can the results of the child's blood disease examination come out?

Patient's question:

Patient: Female, 1.5 years old.
Condition 1: Frequent fever, occurring every two or three days.

Doctor's answer:

Children's nosebleeds are generally related to local nose-picking irritation and also associated with dry nasal passages. You can visit the otolaryngology department of the hospital for a nasal endoscopy and blood test to rule out the possibility of nasal angiofibroma and blood disorders. Currently, nose-picking should be avoided, and erythromycin ointment can be applied locally.