DSM: Abbreviation for the “Diagnostic and Statistical Manual of Mental Disorders,” a comprehensive classification of officially recognized psychiatric disorders, published by the American Psychiatric Association , for use by mental health professionals to ensure uniformity of diagnosis.
DSM describes symptoms and does not discuss the causes of the disorders. DSM-IV designates the 4th edition. Issued in 1993, DSM-IV is currently the latest edition (as of 2001).
- Dwarfism, pituitary
Dwarfism, pituitary: Dwarfism caused by a lack of growth hormone, usually due to malfunction of the pituitary gland. Children with growth hormone deficiency may grow normally for the first two to three years of life but they then fall behind their peers in height. They are normally proportioned. This is a key point. Treatment is […]
- Dwarfism, thanatophoric
Dwarfism, thanatophoric: A form of short-limbed (micromelic) dwarfism that usually causes death within the first few hours after birth. Thanatophoric dysplasia is due to a lethal mutation (change) in the same gene that produces achondroplasia, a familiar and far more common form of short-limbed dwarfism that is compatible with life. In thanatophoric dysplasia the bones […]
Dx: Abbreviation for diagnosis, the determination of the nature of a disease.
DXA: Dual X-ray absorptometry. A technique for scanning bone and measuring bone mineral density (BMD). A DXA scanner is a large machine that produces 2 X-ray beams, each with different energy levels. One beam is high energy while the other is low energy. The amount of x-rays that pass through the bone is measured for […]
DXM: Dextromethorphan, a cough suppressant, sometimes misused as a recreational drug.