A nurse is working with a nursing student to care for several clients who have musculoskeletal injuries. The nurse should identify which of the following functions of the musculoskeletal system? (Select All that Apply)
Production of potassium
Maintains the body’s form and shape
Provides reflexive responses to injuries
Formation of blood cells through red or yellow marrow
Protection of soft organs
Correct Answer : B,D,E
Choice A Reason: Production of potassium
The musculoskeletal system does not produce potassium. Potassium is an essential mineral that is obtained through the diet and is crucial for various bodily functions, including muscle contraction and nerve function. The musculoskeletal system, however, is not involved in its production.
Choice B Reason: Maintains the body’s form and shape
One of the primary functions of the musculoskeletal system is to maintain the body’s form and shape. The skeletal system provides the framework that supports the body and gives it structure. Muscles attached to the bones help maintain posture and allow for movement, contributing to the overall form and shape of the body.
Choice C Reason: Provides reflexive responses to injuries
While the musculoskeletal system is involved in movement and support, reflexive responses to injuries are primarily mediated by the nervous system3. Reflex actions are automatic responses to stimuli that involve the spinal cord and peripheral nerves, not the musculoskeletal system directly.
Choice D Reason: Formation of blood cells through red or yellow marrow
The formation of blood cells, known as hematopoiesis, occurs in the bone marrow, which is part of the skeletal system. Red bone marrow is responsible for producing red blood cells, white blood cells, and platelets. Yellow bone marrow, primarily composed of fat cells, can also convert to red marrow if necessary to increase blood cell production.
Choice E Reason: Protection of soft organs
The musculoskeletal system plays a crucial role in protecting soft organs. For example, the rib cage protects the heart and lungs, the skull encases the brain, and the vertebrae shield the spinal cord. This protective function is vital for preventing injury to these essential organs.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A Reason: The client should maintain systolic BP between 130 and 135 mm Hg
Maintaining a systolic BP between 130 and 135 mm Hg is higher than the recommended range for someone who has experienced a transient ischemic attack (TIA). According to the American Heart Association, the goal for systolic BP in patients with a history of TIA or stroke should be lower to reduce the risk of recurrent events. While this range is not extremely high, it is still above the optimal target for secondary prevention.
Choice B Reason: The client should maintain systolic BP between 141 and 145 mm Hg
This range is significantly higher than the recommended target for systolic BP in patients with hypertension and a history of TIA. Elevated BP in this range increases the risk of recurrent stroke and other cardiovascular events. Effective BP management is crucial in reducing these risks, and maintaining a systolic BP in this range would not be advisable.
Choice C Reason: The client should maintain systolic BP between 136 and 140 mm Hg
Although this range is slightly lower than choice B, it is still above the optimal target for patients with a history of TIA. Research indicates that tighter BP control can significantly reduce the risk of recurrent strokes. Therefore, maintaining a systolic BP in this range would not be ideal for secondary prevention.
Choice D Reason: The client should maintain systolic BP between 120 and 129 mm Hg
This range aligns with the current guidelines for BP management in patients with a history of TIA or stroke. Maintaining a systolic BP between 120 and 129 mm Hg helps reduce the risk of recurrent cerebrovascular events4. This target is considered optimal for secondary prevention and is supported by evidence from various studies and clinical guidelines.
Correct Answer is D
Explanation
Choice A Reason: Instruct the client to wear a hospital gown every day, even when out of bed
This intervention does not directly address the prevention of complications related to immobility. Wearing a hospital gown may be necessary for medical reasons, but it does not promote mobility or prevent complications such as pressure ulcers, muscle atrophy, or deep vein thrombosis (DVT). Encouraging the client to wear regular clothes when out of bed might actually promote a sense of normalcy and encourage more movement.
Choice B Reason: Have the client remain in bed for self-care activities
Keeping the client in bed for self-care activities is counterproductive in preventing complications of immobility. Prolonged bed rest can lead to muscle atrophy, decreased joint mobility, and increased risk of pressure ulcers and DVT. Encouraging the client to get out of bed and perform self-care activities while standing or sitting can help maintain muscle strength and joint flexibility.
Choice C Reason: Encourage the client to sit in the chair for all meals
Encouraging the client to sit in a chair for meals is an effective intervention to prevent complications of immobility. Sitting up helps improve digestion and respiratory function and reduces the risk of pressure ulcers by changing the pressure points on the body. It also promotes muscle activity and circulation, which are crucial in preventing DVT and maintaining overall physical health.
Choice D Reason: Elevate the head of the bed to 30° to 45° for medication administration
While elevating the head of the bed can be beneficial for certain medical conditions and for medication administration, it does not significantly contribute to preventing complications of immobility. This position can help with respiratory function and prevent aspiration during medication administration, but it does not promote overall mobility or prevent muscle atrophy and pressure ulcers.
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