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Bones ...
- Provide the framework for muscles, tendons, and ligaments.
- Facilitate movement.
- Protect internal organs.
- Store and regulate Calcium.
- Make all blood cells.
- 206 bones in the body.
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Muscles ....
- Connected to the bones.
- Muscle contraction requires mechanical, chemical and electrical interaction.
- Muscle contraction is initiated when an action potential (electrical charge) moves along a nerve and across the neuromuscular junction.
- Energy for this work comes from the metabolism of food, especially fats and carbs.
- The body only has a certain number of muscle cells.
- The work of the muscle determines the size of the cell within the muscle.
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hypertrophy is
large muscle cells
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atrophy is
small muscle cells
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Maintaining posture requires
proper alignment of bones, muscles, and joints and a stable center of gravity.
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Posture changes with age
In older adults the lumbar spine flattens and the upper spine and head tilt forward.
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Equilibrium is provided by
vestiubular apparatus of the ear.
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If there is problems with this inner ear client may become:
- dizzy
- nauseated
- have a syncopal episode
- experience vertigo
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Body mechanics is
defined as using alignment, posture and balance to coordinate movement.
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Proper use of body mechanics promotes:
- Safe musculoskeletal function
- Maintains balance without straining muscles.
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Adduction is
Moving a joint or extremity towards the midline of the body.
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Abdution is
Moving a joint or extremity away from the midline of the body.
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Rotation, Internal is
Turning a joint or extremity on its axis toward the body's midline.
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Rotation, external is
Turning a joint or extremity on its axis away from the body's midline.
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Flexion is
Decresing the angle between two bones.
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Extension is
Straightening a joint.
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Hyperextension is
Moving a joint past normal extension.
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supination is
Turning the body or a body part to face up.
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pronation is
Turning the body or body part to face down.
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circumduction is
Moving a body part in widening circles.
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Inversion is
Turning the feet inward so the toes point towards the midline.
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Eversion is
Turning the feet outwards so the toes point away from the midline.
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Opposition
touching the thumb to each finger.
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Proper body mechanics includes:
- Using gravity to our advantage in alignment with posture, balance, and movement.
- Keeps the spine in vertical alignment.
- The weight should always be balanced over the center of gravity.
- The greater the support base the better stability.
- Will help keep the client and the nurse safe from injury.
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Back injuries are the number one reason for
permanent disability in the nursing profession.
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Number one client injury in the healthcare setting is
falls. Costs $461 million annually.
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What can we do to prevent injuries?
- Assess the situation before acting.
- Planning
- Coordination between team members (counting method)
- Have the client assist if possible and explain what is expected of them.
- Use your legs.
- Perform work at the appropriate height.
- Assistive devices ( draw sheets, overhead trapeze, mechanical lifts)
- use lift teams
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exercise:
stengthens muscles, increases endurance, and promotes joint mobility.
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Aerobic exercise involves:
- vigorous and continuous muscle movement.
- the heart rate being high which promotes cardiovascular conditioning.
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anaerobic exercise occurs when
muscles can't extract oxygen.
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marathon runners is an example of
anaerobic exercise.
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The byproduct of anaerobic exercise is
lactic acid.
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isotonic exercise is
constant muscle tension
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examples of isotonic exercise is
walking, running, and performing ADL's
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Isometric exercise is
statice exercise when the client tenses a muscle, holds it stationary while maintaing tension.
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Weight lifting is an example of
isometric exercise
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lack of exercises increases
health risks and problems related to disuse.
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Exercise effects the cardiovascular system by
- increased cardiac output.
- improved myocardial contraction.
- decreased resting heart rate
- improved venous return
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Exercise effects the respiratory system by:
- Increased respriratory rate and depth, followed by quicker return to resting state.
- Improved alveolar ventilation.
- Decreased work of breathing.
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Problems with mobility include:
- congenital (spine bifida, cerebral palsy)
- affective disorders (depression)
- restrictive devices (casts)
- bedrest
- pain
- exhaustion
- deep vein thrombosis (DVT)
- cerebral vascualr accident (CVA or stroke)
- medications
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signs and symptoms with altered mobility:
- contractures (shortening of the muscle)
- decreased strength
- decresed muscle tone (flaccidity)
- Increased muscle tone (spasticity)
- lack of coordination
- disuse osteoporosis (bone demineralization)
- weaked immune system (infection)
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lack of coordination includes:
ataxia (impaired muscle coordination), tremors, chorea (muscle twitching), waddling gait, hemiplegic gait (one leg paralyzed), festinating gait (walking on toes)
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Client safety includes:
- clients have a greater risk for falls if mobility is altered.
- can cause additional trauma (fractures)
- fractured hips is the number one killer of older adults
- fear of repeated falls may cause them to reduce their mobility
- older adults have decreased joint mobility
- pain
- activity intolerance
- oxygenation disorders (COPD, asthma)
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Impact of immobility on function:
- muscle atrophy and weakness
- contractures and joint pain or foot drop
- increased workload of the heart
- orthostatic hypotension
- thromus formation (DVT) pulmonary embolism (PE)
- constipation & urinary stasis leading to UTI's
- Decreased lung expansion and pneumonia
- sleep disturbances
- anorexia (lack of appetite)
- death
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rules of body mechanics
- provide a broad base of support
- work at a comfortable height (raise the bed)
- when lifting, bend your knees and keep your back straight
- keep your load well balanced and close to your body
- roll or push a heavy object. avoid pulling or lifting
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principles of body mechanics
- the greater the bse of support the more stable the body
- pelvic tilt before activity helps protect the lower back from strain and injury
- facing the direction of work reduces the chance of injury
- less energy is needed to keep an object moving than to initiate movement
- moving an object on a level surface requires less effort.
- reducing friction between the object moved and the surface on which it is moved requires less energy
- holding an object close to the body requires less energy than holding it further away
- muscle strain can be avoided by using the strong leg muscles when lifting, pushing, or pulling.
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correct positioning
- it is crucial for maintaining body alignment and comfort, preventing injury and providing sensory, motor, and cognitive stimulation
- it is important to maintain proper body alignment for the patient at all times, this includes when turning or repositioning
- Our goal is the least possible stress on the client's joints and to prevent shear injuries
- maintain body parts correct alignment so they remain functional and unstressed.
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Passive ROM exercises
- perform exercise slowly and gently
- provide support by holding areas proximal and distal to the joint
- repeat each exercise 5 times
- stop or decrease ROM if client complains of discomfort or muscle spasm.
- Perform 1-3 times a day, depending on client's activity tolerance.
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bedrest, bed fast, bed bound all mean
an intervention that restricts the client to bed for therapeutic reasons.
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impaired physical mobility
a state in which the individual experiences or is at risk of experiencing limitation of physical movement.
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pressure sores
- tissues are compressed decreased blood supply to the area therefore decreased oxygen to tissues and cells die
- need to decrease pressure to these points (elbows, coccyx, heels, etc)
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subjective data includes
- normal activity pattern
- ability to perform ADL's
- determine any recent changes
- lifestyle
- work
- exercise patterns
- determine risks for dysfunction such as medication, eye sigt, obstacles at home, wakers, and hearing
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objective data includes
- physical examination of:
- gait
- strength
- balance
- coordination
- muscle mass
- postural blood pressure
- risk for falls
- activity intolerance
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assessment:
- comfort lever and alignment while lying down
- risk factor- ability to move, paralysis
- level of conciousness
- physical ability/motivation
- prescence of tubes, incisions and equipment
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Diagnosis
- defining characteristics from the asasessment
- activity intolerance
- impaired physical mobility
- impaired skin integrity
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planning:
- know expected outcomes - good alignment, increased comfort
- raise bed to comfortable working height
- remove pillows and devices
- obtain extra help if needed
- explain procedure to client and ask them to assist
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implementation
- wash hands
- provide privacy
- put bed in flat position
- move immoblie client up in bed
- realign patient in correct body allignment
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evaluation
- assess body alignment, comfort
- ongoing assessment of skin condition
- document and photograph all areas of concern
- use of proper body mechanics for you and the client
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