Lateral

Definition

Lateral is an anatomic term meaning toward the side of the body, away from the midline. It contrasts with medial (toward midline).

Clinical Applications

• Lateral position (side-lying): Patient on side, often used for comfort, postural drainage, or after certain procedures.
• Left lateral (Sims): Used for pregnant patients to reduce vena cava compression and for rectal procedures/enemas.
• Lateral decubitus chest x-ray: Assesses small pleural effusions.
• Lateral aspect: Outer side of body parts (lateral epicondyle, lateral malleolus).

Nursing Considerations

Rotate patients to lateral positions every 2 hours to prevent pressure injuries. Support with pillows. Left lateral is preferred in pregnancy and late decelerations.

NCLEX Relevance

Left lateral position: pregnancy, late decels, enemas.