Final answer:
First-line treatment for PTSD involves psychotherapies like CBT and SSRIs like sertraline or paroxetine. Other pharmacotherapy options may include SNRIs. Immediate debriefing is not recommended as a standalone treatment.
Step-by-step explanation:
The first-line treatment for posttraumatic stress disorder (PTSD) includes a combination of psychotherapies and pharmacotherapies. Psychotherapies like cognitive-behavioral therapy (CBT), including exposure therapy, cognitive processing therapy, and Eye Movement Desensitization and Reprocessing (EMDR), are considered highly effective. When medication is indicated, the first-line pharmaceutical options are generally selective serotonin reuptake inhibitors (SSRIs) such as sertraline or paroxetine. Other options like serotonin-norepinephrine reuptake inhibitors (SNRIs) may also be considered. Debriefing alone, especially single-session psychological debriefing immediately following trauma, is no longer recommended as it could potentially worsen outcomes.