CRT

CRT may refer to:

Medicine

• Capillary refill time, the rate at which blood refills empty capillaries
• Cognitive Retention Therapy, a dementia treatment
• Cardiac resynchronization therapy, a treatment for heart failure
  • CRT-D, an implanted cardiac resynchronization device
• Corneal Refractive Therapy
• Certified Respiratory Therapist, a respiratory therapist who works under the direction of Registered respiratory therapists and Physicians
• Complex Rehabilitation Technology

Math and science

• Corneal Refractive Therapy, in optometrics
• Chinese remainder theorem, in mathematics
• Crystallographic restriction theorem, in mathematics
• Crt (genetics), a gene cluster
• Abbreviation for the Crater constellation
• Calreticulin a protein

Transport

• Canal & River Trust, the charitable trust in charge of England and Wales' canal network
• Chongqing Rail Transit, a metro system in Chongqing, China
• Cross River Tram, in London, England, UK
• CRT Group, a transport company in Australia
• Chicago Rapid Transit Company, a defunct operator of the Chicago 'L'

Other

• Cathode ray tube, a type of vacuum tube used for information displays (monitors or TVs) or oscilloscopes
• The C runtime library (part of the C standard library), in programming
• Cognitive Reflection Test, a three-item intelligence test by Shane Frederick focused on testing how rational people are.
• Criterion-referenced test, a type of exam
• Charitable remainder trust
• Claiming Rule Team, a category of team in Grand Prix motorcycle racing
• The Colonial Radio Theatre on the Air radio drama production company
• Critical race theory, a school of social thought that applies critical theory to issues of race, law, and power
• The Current reality tree (TOC) of Theory of Constraints, in process management
• Canadian Railway Troops, a First World War military organization