Class diagram for pathology lab management?

Class Diagram for Pathology Lab Management is a diagram of the classes that help to organize the setup of the lab. Some of the important classes may be the following:

Patient - The person to whom the test is applied. This class stores information related to the patient's name, age, sex, problem, etc.

Order - This class stores information related to the number of tests and tests to be applied for.

Test - This class stores the information related to the test like test name, test fee, etc.

Sample - This class stores the samples that are sent to the lab for testing.

Testing - This class tests the sample for testing and issues the report.