All A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Term Definition

Positive predictive value: the probability that a person with a positive test result actually has the disease 

Predictive values

The predictive value of a test is a measure of the times that the value (positive or negative) is the true value. That is, the probability that a person has the disease being tested for. 

proviral DNA

Presence of proviral DNA indicates HIV has integrated into the host-cell genome


Quality assurance – the series of methods used to assure the overall integrity of tests 

Qualitative Result

A result that detects the presence of an agent or substance without measuring the level or quantity of that agent or substance 

Quantitative Result

A result that detects the presence of an agent and by comparison with quantitative standards, gives the level or amount of the agent 


Royal Australian College of General Practitioners


Royal Australian & New Zealand College of Obstetricians & Gynecologists

Reference testing

Testing conducted to clarify the nature of samples’ reactivity or status following initial tests conducted with standard tests in the same or another laboratory


Ribonucleic acid


The probability that a person with the disease will have a positive test result


The testing for the presence, evidence of, or quantity of antibodies specific for infectious or other agents, biochemistry, or substances in blood (serum or plasma or whole blood) 


The condition of having or not having detectable antibodies to a disease in the blood as a result of infection. Serostatus is either positive or negative. 


The probability that a person without the disease will have a negative test result


Sexually transmissible infection



Development of this site and the 2014 and 2017 revisions of the testing policies was supported by: Australian Government Department of Health and Ageing