Electromyography: Test Your Knowledge

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Questions and Answers

Which of the following is NOT a component of the musculoskeletal system?

Muscles

Heart (correct)

Ligaments

Tendons

What is the primary function of the musculoskeletal system?

Support and protection of body organs (correct)

Maintaining body temperature

Digestion of essential minerals

Production of blood cells

What is the role of joints in the musculoskeletal system?

Facilitating digestion of essential minerals

Allowing body movement (correct)

Supporting blood circulation

Producing heat to maintain body temperature

What is the primary purpose of conducting a health history assessment for a patient with musculoskeletal dysfunction?

To gather data on exercise patterns Signup and view all the answers

What is the primary goal of the medical management for osteomyelitis?

Controlling infection Signup and view all the answers

Which diagnostic test is commonly used for assessing osteoarthritis?

Joint aspiration Signup and view all the answers

What is the most common symptom of low back pain?

Morning stiffness Signup and view all the answers

What is the primary risk factor for developing osteomyelitis?

Aging Signup and view all the answers

Which procedure may be considered for some cases of osteoarthritis?

Bone grafting Signup and view all the answers

Which diagnostic test is commonly used for assessing osteomyelitis?

X-rays Signup and view all the answers

What is the main symptom of osteomyelitis?

Fever Signup and view all the answers

Which diagnostic evaluation is used to detect bone disease before it can be seen on x-rays?

Bone scans Signup and view all the answers

What is the purpose of arthrography in musculoskeletal system diagnostic evaluations?

To visualize joint structures Signup and view all the answers

What is the primary purpose of performing arthrocentesis (joint aspiration) in nursing interventions during imaging techniques?

To obtain synovial fluid for examination Signup and view all the answers

Which imaging technique provides high-resolution images of bones and soft tissues using magnetic fields and radio waves?

Magnetic resonance imaging (MRI) Signup and view all the answers

What should nursing staff prohibit patients with cardiac pacemakers from undergoing?

Magnetic resonance imaging (MRI) Signup and view all the answers

What is the primary purpose of a bone densitometry in musculoskeletal system diagnostic evaluations?

To evaluate bone density changes Signup and view all the answers

Which diagnostic test is commonly used for assessing disc disease of the spine?

MRI Signup and view all the answers

What is the primary purpose of using muscle relaxants in non-surgical treatment for back pain?

To relieve pain Signup and view all the answers

What surgical treatment option involves removing the disc and replacing it with artificial parts?

Disc Replacement Signup and view all the answers

Which intervention consists of the insertion of needles at specific acupuncture points?

Acupuncture Signup and view all the answers

What is the primary indication for total hip replacement surgery?

Hip pain that limits everyday activities Signup and view all the answers

What is the primary purpose of using an abduction pillow after hip replacement surgery?

To prevent dislocation of the joint Signup and view all the answers

What specific post-operative complication may lead to osteomyelitis?

Infection Signup and view all the answers

Which medication should be taken on a routine schedule rather than as needed for back pain?

Muscle Relaxants Signup and view all the answers

Which surgical procedure involves the stabilization of a reduced fracture by using metal nails, pins, or plates?

Internal Fixation Signup and view all the answers

What is the primary purpose of using ice bags over the incision after total hip replacement surgery?

To decrease fluid or blood accumulation Signup and view all the answers

Which action should the patient avoid to prevent displacement of the hip joint after total hip replacement surgery?

Bringing the operative leg up toward the chest Signup and view all the answers

Study Notes

Pain is described as a dull, deep ache that can interfere with sleep and movement, sometimes indicating joint sprain, muscle strain, or compartment syndrome.
Musculoskeletal problems can cause altered sensation, including paresthesias (sensations of burning, tingling, or numbness), which may be caused by pressure on nerves or circulatory impairment.
Muscle strength and size are assessed through noting muscular strength and coordination, muscle size, and a patient's ability to change positions, with weakness indicating potential issues.
The skin is inspected for edema, temperature, color, and signs of injury or cuts.
Posture is assessed for normal curvature and common deformities,eg Kyphosis (increased thoracic spine curvature), lordosis (exaggerated lumbar spine curvature), and scoliosis (lateral spinal deviation).
Gait is assessed by having the patient walk away from the examiner for a short distance.
Bone integrity is assessed for deformities, alignment, symmetry, and abnormal growth or fracture findings.

Musculoskeletal system diagnostic evaluations include:

X-rays, which determine bone density, texture, erosion, and changes in bone relationships, requiring multiple views and potentially serial imaging for full assessment.
Computed tomography (CT) scans, which provide more detailed cross-sectional imaging and can assess soft tissue, ligaments, tendons, and severe trauma to various body areas.
Magnetic resonance imaging (MRI), a noninvasive technique that uses magnetic fields and radio waves to create high-resolution images of bones and soft tissues, used to diagnose torn muscles, ligaments, cartilages, herniated discs, and various hip or pelvic conditions.
Bone scans, which detect bone disease before it can be seen on x-rays and can diagnose stress fractures.
Arthrography, which injects a contrast agent into the joint cavity to visualize joint structures, including ligaments, cartilage, tendons, and joint capsule, and assess joint pain and progression of joint disease.
Bone densitometry, which evaluates bone metabolic diseases through accurate monitoring of bone density changes in patients with osteoporosis.

Nursing interventions during imaging techniques include:

Instructing the patient to lie still during the procedure.
Preparing the patient for conditions that may require special consideration during the study, such as pregnancy, claustrophobia, disabilities, or metal implants.
Assessing the patient for possible allergies before using contrast agents for CT scans, MRIs, or arthrography.
Providing comfort measures such as mild analgesics and ice bags.
Removing metal pins or magnetic cards before MRI and CT scans.
Prohibiting patients with cardiac pacemakers from undergoing MRI and CT scans.
Performing arthrocentesis (joint aspiration) to obtain synovial fluid for examination or to relieve pain due to joint effusion.

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Description

Test your knowledge about electromyography (EMG), a diagnostic procedure that provides information about the electrical potential of muscles and nerves. Learn about the insertion of needle electrodes, reading responses on an oscilloscope, and post-study care.