| S1 | First Heart Sound |
|---|---|
| A1 | aortic first sound |
| AFA | acromegaloid facial syndrome; advanced first aid; alcohol-formaldehyde-acetic [fixative] |
| AI | accidental injury; accidentally incurred; adiposity index; aggregation index; allergy and immunology... |
| 'Greek letter alpha' | angular acceleration; first [carbon atom next to the carbon atom bearing the active group in organic... |
| first-set rejection | Allograft transplantation between two organisms not previously sensitised to the graft tissue. Necrosis of the graft usually occurs within 10 days of transplantation. (05 Mar 2000) |
|---|---|
| first stage of labour | The part of labour when the cervix dilates fully (to 10 centimeters). The first stage of labour is also called the stage of dilatation. (12 Dec 1998) |
| first temporal convolution | A longitudinal gyrus on the lateral surface of the temporal lobe between the lateral (sylvian) fissure and the superior temporal sulcus. Synonym: gyrus temporalis superior, first temporal convolution, superior temporal convolution. (05 Mar 2000) |
| first visceral cleft | <anatomy> The cleft between the hyoid and mandibular arches of the embryo; the external auditory meatus is developed from its dorsal portion. Synonym: first visceral cleft. (05 Mar 2000) |
| abdominal pain | Sensation of discomfort, distress, or agony in the abdominal region. (12 Dec 1998) |
| acute testicular pain | <radiology> Diagnostic considerations: Testicular torsion, Torsion of testicular appendix, Epididymo-orchitis, Scrotal abscess (12 Dec 1998) |
| ankle pain | The ankle is a hinged joint. The severity of ankle sprains ranges from mild (which can resolve within 24 hours) to severe (which can require surgical repair). Tendinitis of the ankle can be caused by trauma or inflammatory forms of arthritis. (12 Dec 1998) |
| back pain | A continuous pain located in the back, usually below the cervical level. For lower back pain or pain in the lumbar region, low back pain is available. (12 Dec 1998) |
| back pain, low | Symptoms in the low back can relate to the bony lumbar spine, discs between the vertebrae, ligaments around the spine and discs, spinal cord and nerves, muscles of the low back, internal organs of the pelvis and abdomen, and the skin covering the lumbar area. The low back, or lumbar area, functions in structural support, movement, and protection of certain body tissue. (12 Dec 1998) |
| bearing-down pain | A uterine contraction accompanied by straining and tenesmus; usually appearing in the second stage of labour. (05 Mar 2000) |
| bladder pain | Among the symptoms of bladder infection are feelings of pain, pressure and tenderness around the bladder, pelvis, and perineum (the area between the anus and vagina or anus and scrotum), which may increase as the bladder fills and decrease as it empties; decreased bladder capacity; an urgent need to urinate; painful sexual intercourse; and, in men, discomfort or pain in the penis and scrotum. (12 Dec 1998) |
| breakthrough pain | <oncology, symptom> Intermittent exacerbations of pain that can occur spontaneously or in relation to specific activity. (16 Dec 1997) |
| pain | <symptom> An unpleasant sensory and emotional experience associated with actual or potential tissue damage or described in terms of such damage. (16 Dec 1997) |
| pain, ankle | The ankle is a hinged joint. The severity of ankle sprains ranges from mild (which can resolve within 24 hours) to severe (which can require surgical repair). Tendinitis of the ankle can be caused by trauma or inflammatory arthritis. (12 Dec 1998) |
| pain, back | Symptoms in the low back can relate to the bony lumbar spine, discs between the vertebrae, ligaments around the spine and discs, spinal cord and nerves, muscles of the low back, internal organs of the pelvis and abdomen, and the skin covering the lumbar area. (12 Dec 1998) |