This randomized controlled study aims to examine the effects of using virtual reality glasses and white noise during peripheral intravenous catheterization on pain, anxiety, and satisfaction in adult patients. Participants will be randomly assigned to one of three groups: virtual reality, white noise, or control. Pain and anxiety levels will be assessed using standardized scales immediately after the procedure, and satisfaction will be evaluated following the intervention. The study aims to determine whether these non-pharmacological methods can reduce pain and anxiety and increase patient satisfaction during intravenous catheterization.

Inclusion Criteria:

• No verbal, visual, auditory, or perceptual communication impairment
• Voluntary participation in the study
• Clinical requirement for peripheral intravenous catheterization
• No use of analgesic medication within the last 24 hours
• No diagnosed neurological or psychiatric disorder
• Ability to speak and understand Turkish
• Successful peripheral intravenous catheterization on the first attempt

Exclusion Criteria:

• Under 18 years of age
• Clinically unstable condition
• Individuals with psychiatric, mental, visual, or hearing impairments that prevent effective communication
• Individuals experiencing pain for any reason or using analgesic medication for pain management
• Individuals using anxiolytic or sedative medications
• Individuals who do not consent to participate in the study

Individual participant data (IPD) may be available from the principal investigator upon reasonable request.