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noninvasive

adj.

1. denoting procedures or tests that do not require puncture or incision of the skin or insertion of an instrument or device into the body for diagnosis or treatment.

2. not capable of spreading from one tissue to another, as in the case of a benign tumor. Compare invasive.

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Psychology term of the day

January 11th 2025

dose–response relationship

dose–response relationship

a principle relating the potency of a drug to the efficacy of that drug in affecting a target symptom or organ system. Potency refers to the amount of a drug necessary to produce the desired effect; efficacy refers to the drug’s ability to act at a target receptor or organ to produce the desired effect. Dose–response curves may be graded, suggesting a continuous relationship between dose and effect, or quantal, wherein the desired effect is an either–or phenomenon, such as prevention of arrhythmias. There is considerable variability among individuals in response to a given dose of a particular drug.