Psychiatry General Medicine Primary Care A
PHQ-2 Depression Screen
Two-item ultra-brief screening tool for depression. Score ≥3 warrants full PHQ-9.
Used in: Depression & Anxiety
Score interpretation
Screen Negative 0–2
Score 0–2: Low likelihood of depression
→ No further action required; reassess if symptoms develop
Screen Positive 3–6
Score ≥3: Positive screen
→ Administer full PHQ-9 for diagnostic assessment
Interpretation bands for the PHQ-2. Apply clinical judgement and local guidance.
References
- Kroenke K, Spitzer RL, Williams JB. The Patient Health Questionnaire-2. Med Care. 2003;41(11):1284-1292.
Related
Curated clinical cross-links plus same-class fallbacks.
Calculators
Drugs
- Remifentanil · Opioid (Ultra-Short-Acting)
- Alfentanil · Opioid Analgesic (Ultra-Short Acting)
- Sufentanil · Opioid Analgesic (Ultra-Potent)
- Remimazolam · Ultra-Short Acting Benzodiazepine (Procedural Sedation)
- Landiolol hydrochloride · Ultra-short-acting β1-blocker
- Esmolol hydrochloride · Cardioselective beta-blocker (ultra-short-acting)
Pathways
- Acute Behavioural Disturbance / Rapid Tranquillisation · RCEM 2022; RCPsych 2022; NICE NG10
- Self-Harm Presentation · NICE NG225 (2022)
- Capacity Assessment (Mental Capacity Act) · MCA 2005; Code of Practice
- Acute Psychosis Management · NICE CG178 2014
- Depression Management · NICE CG90 2022
- Lithium Therapy Monitoring · NICE CG185
Decision support only — verify against a current formulary, NICE, or your local guideline before clinical use.