Zero
Zero (medical term)
Zero (pronounced: /ˈziːroʊ/) is a term used in various medical contexts. It often refers to the absence, lack, or null value of a particular measurement or observation.
Etymology
The term "zero" originates from the Italian word "zero", which was borrowed from Medieval Latin "zephirum". This, in turn, was borrowed from the Arabic word "sifr", meaning "empty" or "nothing".
Usage in Medical Context
In medical terminology, "zero" is often used to denote the absence of a particular condition or symptom. For example, in the Glasgow Coma Scale, a score of zero in any of the categories indicates no response. Similarly, in Blood Pressure readings, a systolic or diastolic value of zero indicates no detectable blood pressure, a critical medical emergency.
Related Terms
- Null: In medical research, "null" often refers to a null hypothesis, which proposes no statistical relationship between a set of observed data.
- Baseline: This term refers to the starting point or initial value of a measurement in medical studies, often set as zero.
- Placebo: In clinical trials, a placebo group may show zero change, serving as a control group for comparison with the treatment group.
See Also
External links
- Medical encyclopedia article on Zero
- Wikipedia's article - Zero
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