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. 2023 Jun 13;12:e42043. doi: 10.2196/42043

Table 1.

Study arms.

Study arm Intervention/treatment
Positive therapeutic communication: Solicit the subconscious mind of the patient by asking questions that are not focused on the ABGa procedure. This process allows to divert the attention of the brain to more pleasant information and thus modulate the painful information. This is a standardized intervention with precise phrases. The positive therapeutic communication group physician will say:
  • During identification of the arterial blood collection site: “Are you comfortably installed?,” “How old did you say you were?,” etc

  • At the time of disinfection: “How did you get to the hospital?,” “What day is it?,” etc

  • At the time of puncture: “What is the noise of the lights at your home?,” “Does your car still go to the shops?,” etc

Nocebo: Use of words with a negative connotation (words used frequently in daily practice in the EDb) The nocebo group physician will say:
  • During identification of the puncture site: “That’s where I am going to prick you,” “I am looking for the place where I will prick,” etc

  • At the time of disinfection: “Watch out, it is cold,” “It is disagreeable,” “I am disinfecting the site,” etc

  • At the time of puncture: “Watch out! I am going to prick…1, 2, 3…I am pricking,” “Watch out, this is going to hurt, I am pricking,” etc

Neutral: Use of words defined as neutral (ie, no negative or positive connotation but based on the description of precise facts) The neutral group physician will say:
  • During identification of the site: “I am taking your pulse,” “I am identifying the artery,” etc

  • At the time of disinfection: “I am disinfecting the site,” “I am cleaning your skin,” etc

  • At the time of puncture: “I am taking the sample,” “I am performing the puncture,” etc

aABG: arterial blood gas.

bED: emergency department.