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n. pl. safe·ties
1. The condition of being safe; freedom from danger, risk, or injury.
2. A device designed to prevent accidents, as a lock on a firearm preventing accidental firing.


Relative freedom from harm, a term which, in clinical trials, refers to an absence of harmful side effects resulting from use of the product under investigation; it may be assessed by laboratory testing of biological samples, special tests and procedures, psychiatric evaluation, and/or physical examination of subjects/patients.


Public health The state of being secure or safe from injury, harm, or loss; a judgment of the acceptability of risk–a measure of the probability of an adverse outcome and its severity associated with using a technology in a given situation–eg, for a Pt with a particular health problem, by a clinician with certain training, or in a specified treatment setting. See Injury, Injury prevention, Negotiated safety, On-line safety.


n the condition of possessing freedom from being exposed to risk, danger, or harm.


avoidance of occupational, iatrogenic or personal injury.

drug safety
freedom from undesirable side-effects; increases with specificity and selectivity of a drug. See also safety index (below).
safety index
maximum tolerated dose/recommended dose, the doses being expressed in similar terms, e.g. mg/lb, mg/kg.
radiological safety routine
the specific routine to be followed in an x-ray room to ensure minimal risk to all parties.
restraint safety
proper use of appropriate restraint procedure when dealing with any animal.
safety specifications
specifications laid down by a local government authority about the construction and equipment to be used in a radiological facility.

Patient discussion about safety

Q. what measures are in place to ensure the safety of vaccines. Hello there, I read the previous question which was asked by Edmund. This question made me to think, what measures are in place to ensure the safety of vaccines.

A. Not only related to Autism, we have to be very cautious when we vaccine for other diseases too. As with all medical products, vaccines undergo extensive testing to document their efficacy and to explore potential harms. Before a potential vaccine is licensed for use, FDA scientists conduct a thorough and independent review of the testing data and often employ the help of an FDA public advisory review committee. In addition, FDA rigorously oversees the manufacturing process for vaccines used in this country - including approval of each step in the process and on site inspection. Following licensure, vaccines continue to be monitored through information shared by parents, doctors, and other public health officials.

Q. Contact lenses I’m 17 years old girl, and I have glasses since third grade. I never had any real problems with wearing them,. my best friend always encourage me to try contact lenses, but it seems so strange to put something on directly on your eyes- is it safe? How difficult is it to do?

A. Consult your ophthalmologist (eye doctor) before you decide.

More discussions about safety
References in periodicals archive ?
It is assumed that the low-powered tractors show a low safety index, inasmuch as the operators are frequently the owners themselves.
The paper concludes with eight policy recommendations intended to ensure broad adoption of Integrated Health and Safety principles and the implementation and use of the proposed Integrated Health and Safety Index by the business community.
Intersection safety for pedestrians can be assessed by the Pedestrian Intersection Safety Index (PISI) of Federal Highway Administration (FHWA 2006):
The 2005 Liberty Mutual Workplace Safety Index Findings.
As the equations indicate, large positive values for g (a positive value indicates a safe element) and/or small values for the variation of g will yield a higher safety index.
According to the company's Workplace Safety Index study, which covers statistics through 2001, workplace injuries add nearly $1 billion per week to the cost of doing business in the U.
The firm wage premium is positively and significantly related to the firm's employment of in-house safety personnel, the number of safety personnel activities, the number of promotion activities, the safety index, and personal safety equipment purchased by the employer.
In an effort to offer guidelines to reduce human and economic costs, Liberty Mutual Group has developed its first annual "Liberty Mutual Work place Safety Index.
A safety index records the number of cases of personal violence, weapon possession and drug possession.
A one percent reduction in safety, which is reflected by an increase in the safety index, results in a decrease in the price of a new car.
The facilities will be rated on five pillars with the top being patient safety, which is based on the Dubai Patient Safety Index, clinical excellence, patient happiness as well as operational and financial aspects.

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