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Physiological Adaptation5 P's = neurovascular check

FractureNCLEX cheat sheet

A fracture is a break in the continuity of a bone, usually from trauma, falls, or pathologic weakening (osteoporosis, cancer).

23 key facts 5 practice questions Reviewed Oct 2026
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Signs

  • pain, deformity, swelling, crepitus
  • loss of function, bruising

Assess

  • 5 P's: Pain, Pallor, Pulse
  • Paresthesia, Paralysis
  • check distal to injury

Report

  • fat embolism: SOB, petechiae, confusion
  • compartment syndr: ↑pain unrelieved
  • no pulse, cold pale limb

Do

  • immobilize, ice, elevate
  • neurovascular checks q1-2h
  • traction: weights hang FREE
Key takeaway

Classic signs are pain, swelling, deformity, loss of function, bruising, and crepitus (grating sound or feeling).

Before you read

Test yourself first: 5 questions

Question 1 of 5

An older adult is admitted with a suspected hip fracture after a fall. Which assessment finding of the affected leg is MOST characteristic of a hip fracture?

What is fracture?

Types include closed (skin intact), open/compound (bone breaks skin, high infection risk), comminuted (shattered), greenstick (incomplete, common in children), and spiral. The biggest dangers are not the bone itself but the complications: bleeding, neurovascular compromise, compartment syndrome, and fat embolism.

Fracture illustrated

Common types of bone fracture
Common types of bone fracture. Illustration: BruceBlaus via Wikimedia Commons, CC BY-SA 4.0.

Key points to remember

  • Classic signs are pain, swelling, deformity, loss of function, bruising, and crepitus (grating sound or feeling).
  • Open (compound) fractures break the skin and carry a high risk of osteomyelitis and tetanus.
  • Femur and pelvic fractures can cause major internal blood loss leading to hypovolemic shock.
  • Long bone fractures (femur, pelvis) raise the risk of fat embolism syndrome within 24 to 72 hours.
  • Bone healing stages are hematoma, fibrocartilage, callus formation, ossification, and remodeling.
  • Delayed union, nonunion, and avascular necrosis are late complications of poor healing.

Signs & symptoms

  • pain, deformity, swelling, crepitus
  • loss of function, bruising

Nursing priorities

  1. Immobilize the affected part and splint above and below the joint before moving; do not realign bone ends.
  2. Perform neurovascular checks (the 5 P's: pain, pallor, pulselessness, paresthesia, paralysis) distal to the injury.
  3. Apply ice and elevate the extremity above heart level to reduce swelling.
  4. Cover open fractures with a sterile moist dressing and prepare for antibiotics and tetanus prophylaxis.
  5. Manage pain and assess circulation, motion, and sensation before and after casting or splinting.

Labs & values

Hemoglobin:12 to 18 g/dL (drops with internal bleeding)
Hematocrit:37 to 52 percent
WBC:5,000 to 10,000/mm3 (rises with infection in open fractures)

Patient teaching

  • Report increasing pain, numbness, tingling, or a foul odor or drainage from the cast.
  • Keep the cast clean and dry; never insert objects to scratch under it.
  • Wiggle fingers or toes and elevate the limb to control swelling at home.

Red flags: report now

  • Sudden increase in pain unrelieved by opioids, especially with a tight cast, signals compartment syndrome.
  • Loss of distal pulse, pallor, coolness, or numbness indicates arterial compromise and needs immediate report.
  • Dyspnea, confusion, and petechiae over the chest after a long bone fracture suggest fat embolism.
  • Never elevate the limb or apply ice once compartment syndrome is suspected, as both reduce perfusion.

References

Clinical references for this topic

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