Subclavian
Under the clavicle (the collar bone), as the subclavian artery or the subclavian vein.
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- Subclavian steal
The symptoms of cerebral vascular insufficiency (not enough blood to the brain) when the patient exercises an arm, due to obstruction of the subclavian artery before the origin (the takeoff) of the vertebral artery. Exercising the arm causes the blood flow to reverse and the subclavian artery “steals” blood from the vertebral artery. The subclavian […]
- Subclinical disease
An illness that is staying below the surface of clinical detection. A subclinical disease has no recognizable clinical findings. It is distinct from a clinical disease, which has signs and symptoms that can be recognized. Many diseases, including diabetes, hypothyroidism, and rheumatoid arthritis, are frequently subclinical before they surface as clinical diseases.
- Subconjunctival hemorrhage
A very common cause of a painless bloody eye usually first noticed by somebody else or by the person with it when they look in the mirror. The bleeding results from a break in a small blood vessel in the sclera, the white of the eye. This releases a tiny amount (less than a drop) […]
- Subcu
Abbreviation for subcutaneous. Subcutaneous means under the skin. It implies just under the skin. With a subcutaneous injection, a needle is inserted just under the skin. A drug (for example, insulin) can then be delivered into the subcutaneous tissues. After the injection, the drug moves into small blood vessels and the bloodstream. The subcutaneous route […]
- Subcutaneous
Under the skin. For example, a subcutaneous injection is an injection in which a needle is inserted just under the skin. Also known as subcu. Abbreviated subq.