NURS 5315 MSK 2026/2027 – 82 Exam Questions & Answers: Bone Remodeling, Arthritis, Osteoporosis, Scoliosis, DMD & Sarcopenia

This NURS 5315 MSK 2026/2027 exam study guide contains 82 exam questions with answers focused on musculoskeletal pathophysiology, bone remodeling, inflammatory and degenerative joint disease, osteoporosis, spinal disorders, muscular dystrophy, and age-related loss of skeletal muscle. Across 31 pages, the material combines multiple-choice questions, true/false questions, clinical scenarios, diagnostic markers, pathophysiologic mechanisms, treatment concepts, and characteristic clinical findings, providing a concentrated review of high-yield musculoskeletal material for NURS 5315 examination preparation. The opening section provides detailed coverage of bone cells and bone remodeling physiology. Questions distinguish the functions of osteoblasts, osteoclasts, and osteocytes and review osteocalcin, alkaline phosphatase, cathepsin K, sclerostin, mechanical loading, and osteocyte communication through canaliculi. Particular emphasis is placed on the RANK/RANKL/OPG signaling system, including RANKL-mediated osteoclast differentiation and osteoprotegerin's function as a decoy receptor that limits osteoclast activity. The material connects these mechanisms with excessive bone resorption, reduced bone density, fracture risk, menopause, estrogen loss, and potential therapeutic targets. The document then examines ankylosing spondylitis, osteoarthritis, and rheumatoid arthritis through comparative clinical and pathophysiological questions. Ankylosing spondylitis content includes HLA-B27, enthesis involvement, bamboo-spine appearance, thoracic kyphosis, and morning stiffness that improves with activity. Osteoarthritis questions address articular-cartilage loss, repetitive joint stress, osteophyte formation, joint-space narrowing, and pain that typically worsens with activity. Rheumatoid arthritis material covers HLA-DR4, anti-citrullinated protein antibodies, synovial inflammation, systemic manifestations, prolonged morning stiffness, swan-neck and boutonnière deformities, methotrexate, and TNF-α-targeted therapy such as etanercept. A substantial section concentrates on osteoporosis and altered bone metabolism. It reviews decreased bone density, estrogen's relationship with RANKL and OPG, increased osteoclast formation after menopause, vitamin D deficiency, glucocorticoid-associated bone loss, low BMI, physical inactivity, caffeine intake, postural deformities, hip fractures, minimal-trauma fractures, and other clinical manifestations. The questions repeatedly connect osteoporosis with disruption of the RANK/RANKL/OPG pathway and increased osteoclast-mediated bone resorption. Therapeutic concepts appearing in the material include bisphosphonates, RANKL inhibition with denosumab, hormone replacement therapy, and sclerostin-related targets. The scoliosis section reviews abnormal lateral spinal curvature, C- and S-shaped curves, Cobb-angle measurement on radiographs, curve severity, bracing, physical therapy, rib-cage distortion, neuromuscular risk factors, and surgical consideration for severe curves. The document specifically connects scoliosis with disorders such as muscular dystrophy and distinguishes the goals of conservative treatment—particularly limiting curve progression and supporting strength and flexibility—from definitive correction. The later pages focus on Duchenne muscular dystrophy (DMD). Questions examine mutation of the dystrophin gene, the structural importance of dystrophin, muscle-fiber degeneration, calcium overload, satellite-cell-mediated muscle repair, progressive fibrosis and fatty replacement, proximal muscle weakness, early involvement of the hips, pelvis, and legs, and progressive loss of walking ability. This section links molecular pathology directly with the progressive functional decline characteristic of the disorder. The final section addresses sarcopenia, emphasizing aging as the principal risk factor, preferential loss of type II muscle fibers, disuse-related muscle atrophy, adequate dietary protein, and decreased mobility as an important clinical consequence. This complements the earlier disease-focused material by addressing age-associated changes in skeletal muscle and their functional implications. For deeper academic study, the subject matter aligns with standard pathophysiology references such as McCance & Huether's Pathophysiology: The Biologic Basis for Disease in Adults and Children and Robbins & Cotran Pathologic Basis of Disease, particularly their coverage of bone remodeling, metabolic bone disease, inflammatory joint disorders, skeletal muscle disease, and aging. These are appropriate supplementary references; the uploaded document itself does not provide a bibliography identifying a specific textbook or journal as the source of its questions, so attributing the questions directly to either reference would be unsupported. Relevant students: This resource is particularly relevant for students enrolled in NURS 5315 or comparable musculoskeletal pathophysiology and advanced pathophysiology courses. Based on the material covered, it may also be useful for MSN, DNP, Family Nurse Practitioner (FNP), Adult-Gerontology Nurse Practitioner (AGNP), Pediatric Nurse Practitioner (PNP), APRN, advanced nursing, and other graduate healthcare students reviewing musculoskeletal disease mechanisms and clinical manifestations. The specific university and degree program are not stated in the document. APA References: McCance, K. L., Huether, S. E., & Brashers, V. L. Pathophysiology: The biologic basis for disease in adults and children. Elsevier. Kumar, V., Abbas, A. K., & Aster, J. C. Robbins & Cotran pathologic basis of disease. Elsevier. 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