The answers are:
a. diagnose illnessesb. treat diseasesd. identify the signs of an illnessLaboratory testing has improved doctors' ability to diagnose illnesses, treat diseases, and identify the signs of an illness.
Laboratory testing has improved doctors' ability to diagnose illnesses, treat diseases, and identify the signs of an illness. Through laboratory tests, doctors can determine the presence of pathogens, measure the levels of certain substances in the body, and analyze the body's response to diseases. These tests provide important information that helps doctors make accurate diagnoses, prescribe appropriate treatments, and monitor the progress of the disease.
Laboratory testing has significantly improved doctors' capabilities to diagnose illnesses and treat diseases by utilizing in vitro diagnostics and molecular diagnostic methods for early and precise detection.