The practice of beginning drug therapy for a medical condition with the most cost-effective and safest drug therapy and progressing to other more costly or risky therapy, only if necessary. The aims are to control costs and minimize risks. Also called step protocol.
The husband of a woman who had a child by another man.
- Steppage gait
A manner of walking in which the advancing foot is lifted high so that the toes clear the ground. Steppage gait is a sign of foot-drop.
Referring to precise positioning in three-dimensional space. For example, biopsies, surgery, or radiation therapy can be done stereotactically.
- Stereotactic needle biopsy
A biopsy in which the spot to be biopsied is located three-dimensionally, the information is entered into a computer, and the computer calculates the information and positions a needle to remove the biopsy sample.
- Stereotactic radiotherapy
Radiation therapy in which a number of precisely aimed beams of ionizing radiation coming from different directions meet at a specific point, delivering the radiation treatment to that spot.