Orthopedic Nurse Certification Exam 2025/2026 |
Comprehensive Q&A with 100% Correct Verified Answers |
Latest Updated Version | Already Graded A+
Orthopedic Nurse Certification (ONC®) Exam | Verified Q&A Resource: Covers Musculoskeletal
Anatomy & Physiology, Orthopedic Assessment, Common Conditions (Fractures, Arthritis, Joint
Replacement), Pain Management, Surgical & Postoperative Care, Rehabilitation, Orthopedic
Pharmacology, and Patient Education | 100% Correct Verified Solutions | Graded A+ |
2025/2026 Edition
Introduction
This updated 2025/2026 Orthopedic Nurse Certification Exam package contains the latest and
fully verified exam questions with correct answers. It includes comprehensive coverage of
orthopedic nursing practice, from acute injury management to chronic musculoskeletal care,
along with perioperative and rehabilitation nursing principles. All answers are expert-reviewed,
graded A+, and designed to ensure exam success and clinical excellence.
Answer Format
All correct answers are highlighted in bold and green, with clear rationales that strengthen
orthopedic knowledge, safe nursing practice, and professional readiness for ONC® certification.
Orthopedic Nurse Certification Exam 2025/2026 (100 Questions)
Question 1: What is the primary function of the periosteum in bone healing?
A) Provides structural support
B) Supplies blood and nutrients for repair
C) Acts as a shock absorber
D) Prevents bone growth
B) Supplies blood and nutrients for repair
Rationale: The periosteum contains blood vessels and osteoblasts essential for bone
regeneration and healing.
Question 2: Which assessment finding indicates a potential compartment
syndrome?
A) Warmth and redness
B) Severe pain with passive movement
C) Decreased heart rate
D) Improved capillary refill
B) Severe pain with passive movement
,Rationale: Pain out of proportion with passive stretching is a classic sign of compartment
syndrome.
Question 3: What is the most common site for an osteoporotic fracture?
A) Femur
B) Humerus
C) Wrist (distal radius)
D) Vertebral body
D) Vertebral body
Rationale: Osteoporosis frequently leads to vertebral compression fractures due to bone
density loss.
Question 4: Which medication is contraindicated in patients with a history of
peptic ulcers receiving orthopedic care?
A) Acetaminophen
B) Ibuprofen
C) Oxycodone
D) Tramadol
B) Ibuprofen
Rationale: NSAIDs like ibuprofen increase the risk of gastrointestinal bleeding in ulcer
patients.
Question 5: What is the primary goal of postoperative care following a total hip
replacement?
A) Immediate weight-bearing
B) Prevention of dislocation
C) Removal of surgical drains within 24 hours
D) Early discharge
B) Prevention of dislocation
Rationale: Preventing hip dislocation is critical, often achieved with positioning and
movement restrictions.
Question 6: Which imaging modality is most effective for diagnosing a stress
fracture?
A) X-ray
B) MRI
C) CT scan
D) Ultrasound
B) MRI
Rationale: MRI is highly sensitive for detecting early stress fractures not visible on X-rays.
Question 7: What is the initial treatment for a patient with a suspected open
fracture?
A) Immediate weight-bearing
B) Irrigation and antibiotics
C) Application of a cast
D) Elevation without stabilization
, B) Irrigation and antibiotics
Rationale: Irrigation and antibiotics prevent infection in open fractures.
Question 8: Which nursing intervention is priority for a patient with a newly
applied external fixator?
A) Encouraging ambulation
B) Monitoring for pin site infection
C) Administering pain medication only as needed
D) Removing dressings daily
B) Monitoring for pin site infection
Rationale: Infection at pin sites is a common complication requiring vigilant monitoring.
Question 9: What is the most common cause of osteoarthritis?
A) Autoimmune disease
B) Wear and tear over time
C) Bacterial infection
D) Genetic mutation
B) Wear and tear over time
Rationale: Osteoarthritis results from progressive cartilage degeneration due to mechanical
stress.
Question 10: Which position should be avoided after a posterior hip replacement?
A) Supine with legs extended
B) Adduction and internal rotation
C) Elevation of the head of the bed
D) Prone position
B) Adduction and internal rotation
Rationale: These movements increase the risk of hip dislocation post-surgery.
Question 11: What is the primary indication for a knee arthroscopy?
A) Severe arthritis
B) Meniscal tear
C) Bone tumor
D) Total knee replacement
B) Meniscal tear
Rationale: Arthroscopy is commonly used to diagnose and repair meniscal injuries.
Question 12: Which laboratory value is most critical to monitor in a patient with a
hip fracture?
A) Blood glucose
B) Hemoglobin
C) Serum potassium
D) Liver enzymes
B) Hemoglobin
Rationale: Hip fractures can cause significant blood loss, necessitating hemoglobin
monitoring.
Comprehensive Q&A with 100% Correct Verified Answers |
Latest Updated Version | Already Graded A+
Orthopedic Nurse Certification (ONC®) Exam | Verified Q&A Resource: Covers Musculoskeletal
Anatomy & Physiology, Orthopedic Assessment, Common Conditions (Fractures, Arthritis, Joint
Replacement), Pain Management, Surgical & Postoperative Care, Rehabilitation, Orthopedic
Pharmacology, and Patient Education | 100% Correct Verified Solutions | Graded A+ |
2025/2026 Edition
Introduction
This updated 2025/2026 Orthopedic Nurse Certification Exam package contains the latest and
fully verified exam questions with correct answers. It includes comprehensive coverage of
orthopedic nursing practice, from acute injury management to chronic musculoskeletal care,
along with perioperative and rehabilitation nursing principles. All answers are expert-reviewed,
graded A+, and designed to ensure exam success and clinical excellence.
Answer Format
All correct answers are highlighted in bold and green, with clear rationales that strengthen
orthopedic knowledge, safe nursing practice, and professional readiness for ONC® certification.
Orthopedic Nurse Certification Exam 2025/2026 (100 Questions)
Question 1: What is the primary function of the periosteum in bone healing?
A) Provides structural support
B) Supplies blood and nutrients for repair
C) Acts as a shock absorber
D) Prevents bone growth
B) Supplies blood and nutrients for repair
Rationale: The periosteum contains blood vessels and osteoblasts essential for bone
regeneration and healing.
Question 2: Which assessment finding indicates a potential compartment
syndrome?
A) Warmth and redness
B) Severe pain with passive movement
C) Decreased heart rate
D) Improved capillary refill
B) Severe pain with passive movement
,Rationale: Pain out of proportion with passive stretching is a classic sign of compartment
syndrome.
Question 3: What is the most common site for an osteoporotic fracture?
A) Femur
B) Humerus
C) Wrist (distal radius)
D) Vertebral body
D) Vertebral body
Rationale: Osteoporosis frequently leads to vertebral compression fractures due to bone
density loss.
Question 4: Which medication is contraindicated in patients with a history of
peptic ulcers receiving orthopedic care?
A) Acetaminophen
B) Ibuprofen
C) Oxycodone
D) Tramadol
B) Ibuprofen
Rationale: NSAIDs like ibuprofen increase the risk of gastrointestinal bleeding in ulcer
patients.
Question 5: What is the primary goal of postoperative care following a total hip
replacement?
A) Immediate weight-bearing
B) Prevention of dislocation
C) Removal of surgical drains within 24 hours
D) Early discharge
B) Prevention of dislocation
Rationale: Preventing hip dislocation is critical, often achieved with positioning and
movement restrictions.
Question 6: Which imaging modality is most effective for diagnosing a stress
fracture?
A) X-ray
B) MRI
C) CT scan
D) Ultrasound
B) MRI
Rationale: MRI is highly sensitive for detecting early stress fractures not visible on X-rays.
Question 7: What is the initial treatment for a patient with a suspected open
fracture?
A) Immediate weight-bearing
B) Irrigation and antibiotics
C) Application of a cast
D) Elevation without stabilization
, B) Irrigation and antibiotics
Rationale: Irrigation and antibiotics prevent infection in open fractures.
Question 8: Which nursing intervention is priority for a patient with a newly
applied external fixator?
A) Encouraging ambulation
B) Monitoring for pin site infection
C) Administering pain medication only as needed
D) Removing dressings daily
B) Monitoring for pin site infection
Rationale: Infection at pin sites is a common complication requiring vigilant monitoring.
Question 9: What is the most common cause of osteoarthritis?
A) Autoimmune disease
B) Wear and tear over time
C) Bacterial infection
D) Genetic mutation
B) Wear and tear over time
Rationale: Osteoarthritis results from progressive cartilage degeneration due to mechanical
stress.
Question 10: Which position should be avoided after a posterior hip replacement?
A) Supine with legs extended
B) Adduction and internal rotation
C) Elevation of the head of the bed
D) Prone position
B) Adduction and internal rotation
Rationale: These movements increase the risk of hip dislocation post-surgery.
Question 11: What is the primary indication for a knee arthroscopy?
A) Severe arthritis
B) Meniscal tear
C) Bone tumor
D) Total knee replacement
B) Meniscal tear
Rationale: Arthroscopy is commonly used to diagnose and repair meniscal injuries.
Question 12: Which laboratory value is most critical to monitor in a patient with a
hip fracture?
A) Blood glucose
B) Hemoglobin
C) Serum potassium
D) Liver enzymes
B) Hemoglobin
Rationale: Hip fractures can cause significant blood loss, necessitating hemoglobin
monitoring.
