What does QST mean in PHYSIOLOGY

Quantitative Sensory Testing (QST) is a scientific method used to measure the sensitivity of an individual to various forms of touch, pressure, temperature, vibration, and other sensations. It can help determine if there is an underlying condition which affects an individual’s response to sensory stimuli.

A QST test usually involves the use of specialised equipment to apply various forms of stimulation to the skin, and record the responses. The individual’s responses are compared with standardised norms so that any differences in their level of sensitivity can be detected.

QST tests may be carried out by medical professionals such as neurologists or physiotherapists, by occupational therapists, or by researchers.

QST can help diagnose conditions such as peripheral neuropathy or carpal tunnel syndrome which affect sensation. It can also help diagnose autoimmune diseases such as lupus and rheumatoid arthritis which may cause nerve damage affecting sensation.

The frequency of your QST tests will depend on your condition and the type of treatment that you are receiving. If you have been diagnosed with a condition affecting your nerves then it would be beneficial to have regular testing done to monitor any changes in your sensory thresholds over time.

Generally no – most people find the experience very comfortable with only mild degrees of discomfort associated with some types of testing such as vibration or electrical testing.

Generally not – this type of specialist testing requires specialised equipment and is best performed by trained personnel in controlled conditions for accuracy and safety reasons.

Results are expressed in terms of sensory thresholds – eg how much pressure or temperature one needs before they feel something – which can be compared against normal thresholds for healthy individuals. Your physician will be able to interpret these results for you.