Skip to article
Astra

Psychiatry

Posttraumatic Stress Disorder

Diagnose PTSD with a trauma-informed clinical assessment rather than a self-report score alone, then prioritize manualized trauma-focused psychotherapy. Use symptom measures to track change, assess suicide risk directly, and avoid benzodiazepines because they do not treat core PTSD symptoms and may undermine recovery.

Clinical question: How should physicians screen, confirm, treat, and monitor posttraumatic stress disorder in adults?

Initial encounter

Triage safety and establish whether PTSD is the treatment target

Separate acute safety needs, probable PTSD, and competing psychiatric syndromes before selecting treatment.

At the first PTSD-focused visit, assess current suicidal ideation, suicidal behavior, intent, planning, access to lethal means, and ability to maintain safety. Use a structured instrument such as the Columbia-Suicide Severity Rating Scale when a reproducible suicide-risk assessment is needed. Escalate to urgent psychiatric or emergency evaluation when imminent self-harm risk cannot be managed in the current setting. ccjmJoint Clinical Practice Guideline on Benzodiazepine Tapering: Considerations When Risks Outweigh Benefits | Journal of General Internal Medicine | Springer Nature Link

Establish trauma exposure before administering symptom screens. The PC-PTSD-5 was designed with a trauma-exposure stem so that patients without reported qualifying exposure do not complete the symptom items; this limits unnecessary screening in the substantial proportion of primary-care patients who are not trauma exposed. PubMedThe Primary Care PTSD Screen for DSM-5 (PC-PTSD-5): Development and Evaluation Within a Veteran Primary Care Sample - PMC

Do not convert a positive screen into a diagnosis without clinical assessment. PTSD diagnosis requires determining whether symptoms meet the DSM-5 cluster pattern, whether symptoms are clinically significant, and whether another condition better explains the presentation. On CAPS-5, individual symptoms are considered present at a severity rating of 2 or greater, and the diagnostic pattern requires at least 1 intrusion symptom, 1 avoidance symptom, 2 negative cognition/mood symptoms, and 2 arousal/reactivity symptoms. PubMedA comparison of the CAPS-5 and PCL-5 to assess PTSD in military and veteran treatment-seeking samples

Assessment tools serve different clinical functions and should not be used interchangeably. WileyThe revised Clinician‐Administered PTSD scale for DSM‐5 (CAPS‐5‐R): Initial psychometric evaluation in a trauma‐exposed community sample - Jackson - 2025 - Journal of Traumatic Stress - Wiley Online LibraryPubMedThe Posttraumatic Stress Disorder (PTSD) Checklist for DSM–5 - PMCPubMedThe Primary Care PTSD Screen for DSM-5 (PC-PTSD-5): Development and Evaluation Within a Veteran Primary Care Sample - PMCPubMedA comparison of the CAPS-5 and PCL-5 to assess PTSD in military and veteran treatment-seeking samples
ToolBest clinical useActionable interpretationKey limitation
PC-PTSD-5Brief primary-care case finding after a trauma-exposure stem. PubMedThe Primary Care PTSD Screen for DSM-5 (PC-PTSD-5): Development and Evaluation Within a Veteran Primary Care Sample - PMCA positive result identifies patients needing fuller PTSD assessment; one public-healthcare study found cut score 1 optimized sensitivity, whereas cut score 4 maximized probable efficiency against self-reported DSM-5 PTSD. PubMedEvaluating the Performance of the Primary Care Posttraumatic ...Cut points vary by setting and reference standard; it is not a diagnostic interview. PubMedEvaluating the Performance of the Primary Care Posttraumatic ...
PCL-5Self-reported symptom severity and repeated outcome measurement. PubMedThe Posttraumatic Stress Disorder (PTSD) Checklist for DSM–5 - PMCPubMedA comparison of the CAPS-5 and PCL-5 to assess PTSD in military and veteran treatment-seeking samplesPublished recommended cutoffs span 23-49, most often 31-33; interpret any score in the population and purpose for which it was validated. PubMedThe Posttraumatic Stress Disorder (PTSD) Checklist for DSM–5 - PMCAgreement with CAPS-5 is incomplete, including in treatment-seeking military and veteran samples. PubMedA comparison of the CAPS-5 and PCL-5 to assess PTSD in military and veteran treatment-seeking samples
CAPS-5 or CAPS-5-RStructured clinician-administered diagnostic confirmation and severity assessment. WileyThe revised Clinician‐Administered PTSD scale for DSM‐5 (CAPS‐5‐R): Initial psychometric evaluation in a trauma‐exposed community sample - Jackson - 2025 - Journal of Traumatic Stress - Wiley Online LibraryPubMedA comparison of the CAPS-5 and PCL-5 to assess PTSD in military and veteran treatment-seeking samplesRate symptoms on a 0-4 scale; a rating of 2 or higher represents moderate/threshold symptom severity for DSM-5 diagnostic scoring. PubMedA comparison of the CAPS-5 and PCL-5 to assess PTSD in military and veteran treatment-seeking samplesRequires trained administration and is less practical for universal primary-care screening. WileyThe revised Clinician‐Administered PTSD scale for DSM‐5 (CAPS‐5‐R): Initial psychometric evaluation in a trauma‐exposed community sample - Jackson - 2025 - Journal of Traumatic Stress - Wiley Online LibraryPubMedA comparison of the CAPS-5 and PCL-5 to assess PTSD in military and veteran treatment-seeking samples

Testing

Use screening results to trigger assessment and longitudinal measurement

Choose the shortest validated measure that answers the immediate clinical question.

For opportunistic primary-care screening, PC-PTSD-5 is suited to identifying trauma-exposed patients who need follow-up. Its development study reported excellent diagnostic accuracy, with area under the curve greater than 0.92 for the evaluated screen versions in a veteran primary-care sample. Threshold selection should favor sensitivity when the consequence of a missed case is high and diagnostic follow-up is available; higher thresholds trade sensitivity for fewer positive screens. PubMedThe Primary Care PTSD Screen for DSM-5 (PC-PTSD-5): Development and Evaluation Within a Veteran Primary Care Sample - PMCPubMedEvaluating the Performance of the Primary Care Posttraumatic ...

Use the 20-item PCL-5 when the decision is symptom measurement rather than brief case finding. A systematic review found that recommended probable-PTSD cutoffs varied substantially, from 23 to 49, with 31-33 most frequently identified. Therefore, use a locally validated threshold rather than treating a single universal cutoff as diagnostic across veterans, civilians, primary care, and specialty populations. PubMedThe Posttraumatic Stress Disorder (PTSD) Checklist for DSM–5 - PMC

For treatment follow-up, repeat the same instrument rather than comparing raw scores across different instruments. In a treatment-seeking military and veteran sample, diagnostic agreement between baseline PCL-5 and CAPS-5 was only moderate-to-weak by kappa despite 84.9% overall consistency, reinforcing that symptom change on PCL-5 and diagnostic remission on CAPS-5 answer related but different questions. PubMedA comparison of the CAPS-5 and PCL-5 to assess PTSD in military and veteran treatment-seeking samples

Definitive treatment

Offer trauma-focused psychotherapy as first-line treatment

Treatment selection should prioritize an evidence-based trauma-focused protocol that the patient can access and engage in.

Offer a manualized trauma-focused psychotherapy to adults with confirmed PTSD unless acute instability prevents outpatient participation. Guideline syntheses consistently identify trauma-focused cognitive behavioral approaches as first-line psychological treatment; named options include cognitive processing therapy (CPT), prolonged exposure (PE), trauma-focused CBT, cognitive therapy, and eye movement desensitization and reprocessing (EMDR). ScienceDirectFocusing on trauma-focused psychotherapy for posttraumatic stress disorder - ScienceDirectPubMedTreatment Guidelines for PTSD: A Systematic Review - PMC

Select CPT when trauma-related beliefs and persistent negative cognitions are prominent treatment targets; select PE when behavioral and cognitive avoidance is central and the patient is willing to engage in systematic exposure-based work. Both CPT and PE target avoidance and isolation and have been associated with reductions in negative cognitions around traumatic memories. JAMAClinical Implications of Trauma-Focused Therapy for VeteransScienceDirectFocusing on trauma-focused psychotherapy for posttraumatic stress disorder - ScienceDirect

Offer EMDR when it is available and acceptable, particularly when patient preference or access favors it over CPT or PE. A systematic overview of meta-analyses found that beneficial effects lasting beyond 1 month after treatment were supported most consistently for trauma-focused CBT interventions and EMDR. ScienceDirectPsychological interventions for adult posttraumatic stress disorder

Do not withhold trauma-focused treatment solely because PTSD is accompanied by common comorbid symptoms. Instead, identify the condition that creates an immediate barrier—such as imminent suicide risk, uncontrolled intoxication, severe mood elevation, or inability to participate safely—and stabilize that barrier while maintaining a plan to initiate PTSD-directed psychotherapy. Concern about comorbidity has contributed to debate about parallel treatment models, particularly for co-occurring substance use disorders. nice org uk[PDF] PTSD (update) guideline - NICE

Practical selection of trauma-focused psychotherapy should be preference-sensitive because multiple approaches have evidence of efficacy. ScienceDirectFocusing on trauma-focused psychotherapy for posttraumatic stress disorder - ScienceDirectPubMedTreatment Guidelines for PTSD: A Systematic Review - PMCScienceDirectPsychological interventions for adult posttraumatic stress disorder
TreatmentCore clinical targetWhen it is a practical fit
Cognitive processing therapyNegative cognitions related to traumatic memories, avoidance, and isolation. JAMAClinical Implications of Trauma-Focused Therapy for VeteransScienceDirectFocusing on trauma-focused psychotherapy for posttraumatic stress disorder - ScienceDirectPatient can engage in a structured cognitive trauma-processing protocol and prefers this approach. ScienceDirectFocusing on trauma-focused psychotherapy for posttraumatic stress disorder - ScienceDirect
Prolonged exposureAvoidance of trauma-related cues and experiences. JAMAClinical Implications of Trauma-Focused Therapy for VeteransScienceDirectFocusing on trauma-focused psychotherapy for posttraumatic stress disorder - ScienceDirectPatient accepts an exposure-based protocol and has sufficient stability for consistent participation. ScienceDirectFocusing on trauma-focused psychotherapy for posttraumatic stress disorder - ScienceDirect
Trauma-focused CBT or cognitive therapyCognitive, emotional, and behavioral processing of trauma. ScienceDirectFocusing on trauma-focused psychotherapy for posttraumatic stress disorder - ScienceDirectPubMedTreatment Guidelines for PTSD: A Systematic Review - PMCA trained clinician and manualized program are locally available. ScienceDirectFocusing on trauma-focused psychotherapy for posttraumatic stress disorder - ScienceDirectPubMedTreatment Guidelines for PTSD: A Systematic Review - PMC
EMDRTrauma processing within an EMDR protocol. ScienceDirectFocusing on trauma-focused psychotherapy for posttraumatic stress disorder - ScienceDirectPubMedTreatment Guidelines for PTSD: A Systematic Review - PMCPatient preference or local expertise favors EMDR; evidence supports benefit beyond 1 month after treatment. ScienceDirectPsychological interventions for adult posttraumatic stress disorder

Choosing among evidence-based trauma-focused therapies

No source-supported hierarchy establishes that one of CPT, PE, trauma-focused CBT, or EMDR should be universally preferred. Match the protocol to patient preference, local clinician competence, trauma presentation, and feasibility, while preserving delivery of a structured evidence-based treatment rather than substituting nonspecific supportive counseling. ScienceDirectFocusing on trauma-focused psychotherapy for posttraumatic stress disorder - ScienceDirectPubMedTreatment Guidelines for PTSD: A Systematic Review - PMCScienceDirectPsychological interventions for adult posttraumatic stress disorder

Medication decisions

Do not use benzodiazepines as PTSD treatment

Pharmacotherapy should not displace trauma-focused psychotherapy when an evidence-based psychotherapy is available.

Avoid initiating benzodiazepines to treat PTSD, including for PTSD-related anxiety or sleep disturbance. VA guidance recommends avoiding benzodiazepines in patients with PTSD symptoms because they are ineffective for core PTSD symptoms and do not improve PTSD-related sleep dysfunction. ccjmJoint Clinical Practice Guideline on Benzodiazepine Tapering: Considerations When Risks Outweigh Benefits | Journal of General Internal Medicine | Springer Nature Link

Benzodiazepine exposure carries a clinically important tradeoff in PTSD: reported associations include increased substance use, depression, aggression, greater PTSD severity, and reduced efficacy of trauma-focused psychotherapy. These concerns are especially relevant when a patient is being referred for CPT, PE, or another trauma-focused protocol. ccjmJoint Clinical Practice Guideline on Benzodiazepine Tapering: Considerations When Risks Outweigh Benefits | Journal of General Internal Medicine | Springer Nature Link

When a patient is already receiving a benzodiazepine, do not abruptly stop it solely because PTSD is diagnosed. Reassess indication, duration, co-occurring substance use, depression, aggression, and readiness for a structured taper; use a benzodiazepine-tapering guideline when risks outweigh benefits. ccjmJoint Clinical Practice Guideline on Benzodiazepine Tapering: Considerations When Risks Outweigh Benefits | Journal of General Internal Medicine | Springer Nature Link

Nightmares and sleep fragmentation should prompt a targeted evaluation rather than reflexive sedative prescribing. Doxazosin has limited and heterogeneous evidence for trauma-related nightmares, with mixed randomized-trial findings; it may be considered only as an adjunct within a comprehensive treatment plan, not as a replacement for first-line psychotherapy. ScienceDirectManagement of trauma-related nightmares in PTSD: Can doxazosin ...

Follow-up

Monitor engagement, symptom trajectory, and suicide risk through treatment

Follow-up should determine whether the patient is receiving an adequate trauma-focused intervention and remains safe enough to continue it.

At each early treatment contact, reassess suicidal ideation, treatment attendance, avoidance-driven disengagement, substance use, and barriers to completing the selected protocol. In a population-based cohort of 847,217 veterans with an initial PTSD diagnosis, initiation of CPT or PE was associated with lower suicide risk after adjustment for measured clinical and demographic characteristics; this supports active efforts to connect eligible patients to these therapies rather than passive referral alone. JAMAClinical Implications of Trauma-Focused Therapy for Veterans

Use a consistent symptom measure such as the PCL-5 at clinically meaningful intervals during and after treatment, but interpret improvement alongside functioning and clinician assessment. In one treatment-seeking military and veteran sample, 44.7% achieved CAPS-5 remission after treatment while 48.9% no longer met probable PTSD on PCL-5, illustrating that symptom-screen status and structured-interview remission can diverge. PubMedA comparison of the CAPS-5 and PCL-5 to assess PTSD in military and veteran treatment-seeking samples

Escalate the treatment plan when the patient cannot access the selected evidence-based psychotherapy, repeatedly disengages, develops worsening suicidality, or has diagnostic uncertainty despite serial self-report scores. Address modifiable access barriers because therapist capacity, particularly in rural and underresourced settings, can reduce reach of CPT and PE. JAMAClinical Implications of Trauma-Focused Therapy for Veterans

Common questions

Can a PCL-5 score diagnose PTSD?

No. PCL-5 is useful for symptom quantification and treatment monitoring, but published probable-PTSD cutoffs range from 23 to 49 and agreement with CAPS-5 is incomplete. Confirm clinically important diagnoses with structured assessment when needed. PubMedThe Posttraumatic Stress Disorder (PTSD) Checklist for DSM–5 - PMCPubMedA comparison of the CAPS-5 and PCL-5 to assess PTSD in military and veteran treatment-seeking samples

Should trauma-focused psychotherapy be deferred until all comorbid symptoms resolve?

Not routinely. Identify and stabilize immediate barriers to safe participation, such as imminent suicide risk or uncontrolled intoxication, while maintaining a plan for PTSD-directed treatment. Comorbidity alone should not default the patient to nonspecific care. nice org uk[PDF] PTSD (update) guideline - NICE

References

  1. Dialectical Behavior Therapy for Posttraumatic Stress Disorder (DBT ...jamanetwork.com · jamanetwork.com
  2. Clinical Implications of Trauma-Focused Therapy for Veteransjamanetwork.com · jamanetwork.com
  3. The revised Clinician‐Administered PTSD scale for DSM‐5 (CAPS‐5‐R): Initial psychometric evaluation in a trauma‐exposed community sample - Jackson - 2025 - Journal of Traumatic Stress - Wiley Online Libraryonlinelibrary.wiley.com · onlinelibrary.wiley.com
  4. The prevalence of post-traumatic stress disorder (PTSD) in US combat soldiers: a head-to-head comparison of DSM-5 versus DSM-IV-TR symptom criteria with the PTSD checklist - ScienceDirectwww.sciencedirect.com · www.sciencedirect.com
  5. Focusing on trauma-focused psychotherapy for posttraumatic stress disorder - ScienceDirectwww.sciencedirect.com · www.sciencedirect.com
  6. Focusing on trauma-focused psychotherapy for posttraumatic stress ...www.sciencedirect.com · www.sciencedirect.com
  7. Eye Movement Desensitization and Reprocessing - an overviewwww.sciencedirect.com · www.sciencedirect.com
  8. [PDF] CG26 Post-traumatic stress disorder (PTSD) - NICEwww.nice.org.uk · www.nice.org.uk
  9. Overview | Post-traumatic stress disorder | Guidance - NICEwww.nice.org.uk · www.nice.org.uk
  10. [PDF] PTSD (update) guideline - NICEwww.nice.org.uk · www.nice.org.uk
  11. [PDF] Post-traumatic stress disorder - NICEwww.nice.org.uk · www.nice.org.uk
  12. Joint Clinical Practice Guideline on Benzodiazepine Tapering: Considerations When Risks Outweigh Benefits | Journal of General Internal Medicine | Springer Nature Linkwww.ccjm.org · www.ccjm.org
  13. The Posttraumatic Stress Disorder (PTSD) Checklist for DSM–5 - PMCpmc.ncbi.nlm.nih.gov · pmc.ncbi.nlm.nih.gov
  14. The Primary Care PTSD Screen for DSM-5 (PC-PTSD-5): Development and Evaluation Within a Veteran Primary Care Sample - PMCwww.ncbi.nlm.nih.gov · www.ncbi.nlm.nih.gov
  15. Evaluating the Performance of the Primary Care Posttraumatic ...pmc.ncbi.nlm.nih.gov · pmc.ncbi.nlm.nih.gov
  16. Exploring optimum cut-off scores to screen for probable posttraumatic stress disorder within a sample of UK treatment-seeking veterans - PMCpmc.ncbi.nlm.nih.gov · pmc.ncbi.nlm.nih.gov
  17. A comparison of the CAPS-5 and PCL-5 to assess PTSD in military and veteran treatment-seeking samplespmc.ncbi.nlm.nih.gov · pmc.ncbi.nlm.nih.gov
  18. Treatment Guidelines for PTSD: A Systematic Review - PMCwww.ncbi.nlm.nih.gov · www.ncbi.nlm.nih.gov
  19. Evidence Brief: Psychedelic Medications for Mental Health and Substance Use Disorders - NCBI Bookshelfwww.ncbi.nlm.nih.gov · www.ncbi.nlm.nih.gov
  20. Pragmatic Comparative Effectiveness of Primary Care Treatments for Posttraumatic Stress Disorder: A Randomized Clinical Trial. - Abstractpubmed.ncbi.nlm.nih.gov · pubmed.ncbi.nlm.nih.gov
  21. Management of trauma-related nightmares in PTSD: Can doxazosin ...www.sciencedirect.com · www.sciencedirect.com
  22. Psychological interventions for adult posttraumatic stress disorderwww.sciencedirect.com · www.sciencedirect.com
  23. [PDF] Post-traumatic stress disorder: management (update) - NICEwww.nice.org.uk · www.nice.org.uk
  24. [PDF] Surveillance proposal consultation document | NICEwww.nice.org.uk · www.nice.org.uk