Kylmäaltistuskoe

Kylmäaltistuskoe, also known as the cold pressor test, is a laboratory procedure used to assess an individual's physiological response to cold stimuli. This test typically involves immersing a limb, usually a hand or foot, into ice-cold water for a short duration, often one to three minutes. Throughout the test, various physiological parameters are monitored, including blood pressure, heart rate, and subjective pain perception.

The primary purpose of the kylmäaltistuskoe is to evaluate the sympathetic nervous system's reactivity. The sudden exposure to cold triggers a vasoconstrictive response and an increase in heart rate and blood pressure, mediated by the sympathetic nervous system. This response is believed to be influenced by factors such as pain perception, stress levels, and individual physiological differences.

In clinical settings, the kylmäaltistuskoe can be used to investigate conditions associated with autonomic dysfunction, such as certain types of headaches or peripheral vascular disorders. It can also be employed in research to study pain mechanisms, stress responses, and the effects of various interventions on physiological reactivity. The interpretation of the results considers the magnitude and duration of the observed physiological changes in relation to established norms or baseline measurements. Ethical considerations, including informed consent and ensuring participant comfort and safety, are paramount when conducting this test.