A 45-year-old construction worker is brought to the emergency department after falling from scaffolding and landing on his right side. He reports severe pain in his right hip and is unable to bear weight. Which assessment finding would be most indicative of a hip fracture?

External rotation and shortening of the affected leg are classic, pathognomonic signs of hip fracture due to muscle pull and bone displacement. Other findings like bruising, numbness, or inability to perform straight leg raises are less specific and can occur with other hip injuries.

Core Nursing Explanation Key Concept Analysis: This question assesses your ability to identify the classic, pathognomonic sign of a Hip fracture, specifically a femoral neck or intertrochanteric fracture. The mechanism involves a high-impact injury (fall) causing a break in the proximal femur. The key pathophysiological concept is that the fracture disrupts the structural integrity of the femur, allowing powerful muscle groups (especially the iliopsoas and external rotators) to pull the distal fragment, resulting in a characteristic deformity.

Answer Rationale: Key Point! The correct answer is External rotation and shortening of the affected leg. This is a classic, almost definitive sign of a displaced hip fracture. The Shortening occurs because the strong gluteal and quadriceps muscles pull the distal fragment upward. The External rotation is caused by the unopposed pull of the external rotator muscles (e.g., piriformis) on the distal fragment. This combination is highly specific for this injury.

Distractor Analysis:
Option 1 (Bruising and swelling): While common in trauma, bruising (ecchymosis) and swelling are non-specific findings that occur with many soft tissue injuries, contusions, or sprains. They are not diagnostic of a fracture.
Option 2 (Numbness and tingling): This indicates potential neurovascular compromise, which is a serious complication to assess for (e.g., injury to the sciatic or femoral nerve), but it is not the most common or definitive sign of the fracture itself. Its presence signals an emergency but doesn't confirm the fracture diagnosis.
Option 4 (Inability to perform straight leg raises): This tests motor function and pain response. A patient with a hip fracture will have severe pain with any movement, making this test positive. However, it is also positive in many other painful hip pathologies (e.g., severe arthritis, bursitis) and is therefore less specific than the visible deformity of rotation and shortening.

Related Concepts: Immediate nursing priorities for a suspected hip fracture include Immobilization to prevent further displacement and neurovascular injury, pain management, and preparation for diagnostic imaging (X-ray). Post-operative care focuses on preventing complications like Deep vein thrombosis (DVT), Pressure ulcers, and Atelectasis.

Concept Summary
Hip Fracture (Proximal Femur Fracture): A break in the femur bone near the hip joint, common in older adults with osteoporosis but also from high-impact trauma.
Pathognomonic Sign: External rotation + shortening of the leg.
Mechanism: Muscle pull (gluteals, iliopsoas, external rotators) on the fractured bone fragments.
Nursing Priorities: Immobilize, assess neurovascular status (CMS: Circulation, Motor, Sensation), manage pain, prevent complications.

Side-by-Side Comparison!

Assessment Finding	Indicates	Specificity for Hip Fracture
External Rotation & Shortening	Displaced femoral neck/intertrochanteric fracture	High (Pathognomonic)
Severe Pain & Inability to Bear Weight	Significant injury (fracture, dislocation, severe sprain)	Moderate (Common but not definitive)
Bruising & Swelling	Soft tissue injury, hematoma	Low (Non-specific)
Numbness/Tingling (Paresthesia)	Neurovascular compromise (EMERGENCY)	Low (A complication, not a diagnostic sign)

Anatomy, Physiology & Pharmacology Points
Anatomy: The Femoral neck is a common fracture site. The Sciatic nerve runs posteriorly and can be injured. The Femoral artery is anterior.
Physiology: The iliopsoas muscle flexes and externally rotates the hip. The gluteal muscles abduct and extend. When the bone is broken, these muscles contract and pull the fragments out of alignment.
Pharmacology: Immediate pain management often involves IV opioids (e.g., morphine). Post-operatively, anticoagulants (e.g., enoxaparin) are standard to prevent DVT.

Memory Tips
Mnemonic: "Rotated and Short = Really Serious (fracture)."
Visualize: Picture the injured leg lying flat, with the foot and knee pointed outward (externally rotated) and looking visibly shorter than the other leg.

High-Frequency NCLEX Topics
Hip fractures are a classic NCLEX topic, especially in geriatric nursing (falls) and musculoskeletal trauma. You must know the classic signs, priority nursing actions (immobilization, neurovascular checks), and major post-op complications (infection, DVT, dislocation).

Watch Out for Question Variations!
1. Priority Action: "The nurse's first action for a patient with a suspected hip fracture is?" (Answer: Immobilize the limb/support it in position of comfort).
2. Post-Op Complication: "Which finding 3 days post hip arthroplasty is most concerning?" (Answer: Calf pain, warmth, swelling - signs of DVT).
3. Neurovascular Assessment: "The nurse should assess for which finding indicating nerve damage?" (Answer: Numbness/tingling in the foot/toes).

Nursing Clinical Practice Guide Clinical Scenario: Mr. Johnson, 72, is admitted after a fall at home. He is lying on the ED stretcher, his right leg is noticeably turned outward and appears shorter than the left. He rates his hip pain as 9/10.

Nursing Intervention Strategy: 1. Immediate Assessment & Immobilization: Do NOT attempt to straighten or "reduce" the limb. Place a pillow under the knee for support, maintaining the position of comfort. Immediately perform a focused Neurovascular assessment (CMS checks) on the affected limb.
2. Pain Management: Administer prescribed IV analgesia promptly. Use non-pharmacological methods like reassurance and careful positioning.
3. Preparation for Diagnostics/Treatment: Assist with obtaining X-rays. Prepare the patient for potential surgery (NPO status, consent, pre-op teaching).
4. Post-Operative Care (Post-op Day 1): Monitor surgical site, manage pain, encourage deep breathing and coughing to prevent atelectasis, initiate DVT prophylaxis (sequential compression devices, anticoagulants), and begin mobility per protocol (often weight-bearing as tolerated with assistive devices).

Patient Safety and Precautions:

• Contraindication: Never force internal rotation or apply traction unless specifically ordered and trained to do so.
• Medication Caution: Opioids require vigilant monitoring of respiratory rate and sedation level, especially in older adults.
• Key Monitoring: Frequent CMS checks (every 1-2 hours initially) are critical to detect compartment syndrome or nerve injury.

Nursing Procedure & Medication Flow
Neurovascular Assessment (CMS Check):
1. Circulation: Check pedal pulses (dorsalis pedis, posterior tibial), capillary refill (< 3 seconds), color, and warmth.
2. Motor: "Wiggle your toes." "Push your foot down against my hand (plantarflexion). Pull your foot up (dorsiflexion)."
3. Sensation: "Can you feel me touching your toes?" (Light touch). Check for numbness or tingling.
Post-Op Medication: Enoxaparin (Lovenox) injections are typical for DVT prophylaxis. Administer subcutaneously in the abdomen, rotating sites. Do not massage the area.

A Word from Your Senior Nurse "In the chaos of the ED, spotting that externally rotated, shortened leg is a quick, visual clue that screams 'hip fracture.' Your immediate job isn't to diagnose, but to protect. Stabilize that limb, manage the pain, and be the detective for neurovascular changes. Remember, for an elderly patient, this injury can be life-altering. Your vigilant post-op care to prevent pneumonia, blood clots, and pressure sores is what gets them back on their feet. On the NCLEX, they test this because in real life, you will see it."