Chart — Fundamentals
Positioning by Procedure & Condition
The high-yield “what position?” lookup. Each row pairs a situation with the correct position and the reason— because the reason is what lets you answer a question you’ve never seen.
Educational use only. Positioning follows provider orders, procedure protocols, and individual activity restrictions. This chart is an educational quick-reference. This material supports nursing education and exam review. It is not medical advice and is not a substitute for clinical judgment, institutional policy, or medical direction. Always follow facility protocols and current provider orders.
Position for Each Situation
| Situation | Position | Why |
|---|---|---|
| Respiratory distress / dyspnea | High-Fowler's or orthopneic (leaning forward) | Maximizes lung expansion and eases the work of breathing |
| Unconscious / vomiting / post-seizure / sedated | Lateral (side-lying / recovery) | Lets secretions drain and protects the airway from aspiration |
| Tube feeding / high aspiration risk | HOB ≥ 30–45° during and 30–60 min after | Gravity keeps stomach contents down and out of the airway |
| Increased intracranial pressure (ICP) | HOB 30°, head midline and neutral | Promotes venous drainage from the head; neck flexion/rotation raises ICP |
| Autonomic dysreflexia (SCI ≥ T6) | Sit UPRIGHT immediately | Orthostatic drop helps lower a dangerously high blood pressure |
| After lumbar puncture | Lie flat (supine) as ordered | Reduces CSF leak / post-dural-puncture headache risk |
| Thoracentesis / paracentesis (during) | Upright, leaning forward over a table | Widens intercostal spaces / positions fluid for access |
| After liver biopsy | Right side-lying | Applies pressure to the biopsy site to control bleeding |
| Air embolism (e.g., central line) | Left-lateral Trendelenburg (Durant's maneuver) | Traps air in the right ventricle, away from the pulmonary outflow |
| After femoral cardiac cath / angiography | Supine, affected leg straight | Prevents bleeding and arterial-access complications |
| Laboring patient / supine hypotension in pregnancy | Left-lateral | Relieves compression of the inferior vena cava, improving placental flow |
| Prolapsed umbilical cord | Knee-chest or Trendelenburg (or left-lateral, hips elevated) | Lifts the presenting part off the cord to restore fetal blood flow |
| Enema / rectal exam | Left-lateral Sims' | Follows the sigmoid colon's natural curve |
| Shock / hypotension | Supine with legs elevated (modified) | Promotes venous return; routine Trendelenburg is no longer recommended |
| After total hip arthroplasty | Abduction (wedge pillow); avoid > 90° flexion/adduction | Prevents prosthetic hip dislocation |
| After above-knee amputation | Prone periodically; avoid prolonged hip flexion | Prevents hip-flexion contractures |
| GERD / hiatal hernia / after some head-neck surgery | Reverse Trendelenburg / HOB up | Gravity limits reflux and gastric contents rising |
Exam Traps
- ✦Airway beats everything: unconscious/vomiting/post-seizure → lateral (side-lying) first.
- ✦Increased ICP → HOB 30°, head midline; autonomic dysreflexia → sit UP (opposite goals, both about pressure).
- ✦Air embolism → LEFT-lateral Trendelenburg (Durant's); prolapsed cord → knee-chest/Trendelenburg.
- ✦Any pregnant/laboring patient who's hypotensive → turn to the LEFT side (off the vena cava).
- ✦Trendelenburg is no longer the shock position — use supine with legs elevated.
Related Resources
Standards & sources
This page is written to align with American Nurses Association (ANA) Standards of Practice · The Joint Commission. It is an educational summary, not a citation of any single document — always verify specific doses, values, and protocols against current guidelines and your facility policy. How we source content →