Laboratory Services at Indraprastha Apollo Hospitals, New Delhi, have been established with a view to provide wide range of Laboratory investigations necessary for patient care. It consists of disciplines of Biochemistry, Clinical Pathology, Hematology, Immunology, Microbiology & Serology, Infectious Diseases, Histopathology, Cytopathology. The Laboratory Services are accredited by the national accrediting authority, NABL, as per the ISO: 15189, 2007 standards. All these disciplines provide qualitative and quantitative analysis of biological materials such as blood, serum or plasma, tissue, urine, stool, CSF etc. to support clinicians in the practice of medicine.The greatest emphasis has been given to ensure accuracy, precision, reproducibility and speedy reporting. The laboratories are equipped with state-of-the-art equipments.To operate these sophisticated gadgets the laboratories have a team of efficient, motivated, knowledgeable and qualified doctors and technical staff who are constantly involved in producing world class results and upholding quality assurance. The laboratories at Indraprastha Apollo Hospital provide round the clock service i.e. 24 hrs a day, 365 days in a year, to the patients.