The FNP Review

The 4 Musculoskeletal Conditions You Will See on Every FNP Board Exam

Musculoskeletal · 3 min read · September 29, 2026

Introduction

Musculoskeletal complaints make up a massive portion of primary care visits, which means they are heavily tested on both the AANP and ANCC board exams. When you sit down for your exam, you won't just be asked to diagnose basic joint pain; you will need to differentiate between subtle physical exam maneuvers and recognize classic red flags. Let's break down the four most critical musculoskeletal topics you need to master before test day.

1. Rotator Cuff Injuries vs. Adhesive Capsulitis

Shoulder pain is a board exam favorite. When evaluating a patient with shoulder complaints, you must immediately differentiate between a structural tear and an inflammatory capsule issue.

  • Rotator Cuff Tendinopathy or Tear: Patients typically present with pain when lifting the arm overhead and difficulty sleeping on the affected side. Look for a positive Drop Arm Test or Neer/Hawkins sign for impingement. Active range of motion is severely limited, but passive range of motion is often preserved in isolated tendinopathy.
  • Adhesive Capsulitis (Frozen Shoulder): Most common in women aged 40-60, especially those with diabetes mellitus. The hallmark of adhesive capsulitis is a progressive, painful loss of both active and passive range of motion in all planes.

Board Tip: If a question describes a patient with insidious onset of global shoulder stiffness who cannot lift their arm and someone else cannot passively move it for them either, think adhesive capsulitis.

2. Knee Pathology: Meniscus vs. Ligaments

Knee injuries can feel overwhelming due to the sheer number of special tests, but the boards usually test a few high-yield presentations.

  • Meniscal Tear: Patients often report a twisting injury followed by joint line pain, catching, locking, or giving way. Look for a positive McMurray Test or Apley Grind Test.
  • Anterior Cruciate Ligament (ACL) Tear: Typically caused by a sudden deceleration or pivoting maneuver with a loud "pop" followed by rapid, significant joint effusion (hemarthrosis) within hours. The gold standard physical exam test is the Lachman Test, which is more sensitive than the anterior drawer test.

Clinical Pearl: Rapid joint swelling (hemarthrosis) within 2 hours of a knee injury points directly to an ACL tear or fracture. Gradual swelling over 24-48 hours points toward a meniscal tear or milder sprain.

3. Carpal Tunnel Syndrome and Entrapment Neuropathies

Hand and wrist numbness is another high-yield area. You must know your compression neuropathies cold.

  • Carpal Tunnel Syndrome: Compression of the median nerve as it travels through the carpal tunnel. Patients experience numbness and tingling in the thumb, index, middle, and radial half of the ring finger. Symptoms often wake patients up at night and are exacerbated by repetitive wrist flexion. Look for positive Phalen's test and Tinel's sign.
  • Board Distinction: Remember that the median nerve supplies sensation to the palmar aspect of the first three fingers and half of the fourth, but sensation to the thenar eminence is spared because the palmar cutaneous branch branches proximal to the carpal tunnel.

Board Tip: Conservative management for carpal tunnel includes neutral wrist splints worn primarily at night, ergonomic adjustments, and short-term NSAIDs or corticosteroid injections.

4. Lower Back Pain Red Flags

Acute low back pain is common, but boards test your ability to spot dangerous underlying pathology that requires immediate intervention.

  • Cauda Equina Syndrome: This is a true surgical emergency. Look for the classic triad: new-onset urinary retention or incontinence, addle anesthesia (numbness in the groin and perineal area), and progressive lower extremity motor weakness.
  • Action Plan: If you see a practice question describing saddle anesthesia or bladder dysfunction, the correct answer is immediate referral for an emergent MRI and surgical decompression.

Conclusion and Next Steps

Musculoskeletal questions don't have to trip you up on boards. By focusing on the specific physical exam maneuvers, timeline of swelling, and critical red flags like cauda equina syndrome, you can secure these points easily. You have what it takes to pass your boards with flying colors. Keep your head up, trust your preparation, and continue mastering high-yield concepts every single day.