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Medical and Healthy Living Glossary - Q

This page of our online glossary of medical and healthy living is for medical and healthy living terms beginning with the letter 'Q'.

• Quadrantanopia - Blindness in a quarter of the field of vision.
• Quadruple Vaccine - A vaccine which immunises against four diseases, diphtheria, whooping cough, poliomyelitis and tetanus.
• Quantitative Digital Radiography - The use of digital X-ray scans to determine whether a person has a bone disease such as osteoporosis. The levels of calcium in the bones are measured, usually in the spine and hip.
• Quartan Fever - A type of malaria caused by Plasmodium malariae in which the fever returns every four days.