ATI RN
Questions About Muscular System with Answers Questions
Question 1 of 5
Which of the following imaging techniques would be best to use to study the uptake of nutrients by rapidly multiplying cancer cells?
Correct Answer: C
Rationale: PET (Positron Emission Tomography) tracks metabolic activity, like nutrient uptake in cancer cells, using radioactive tracers (e.g., glucose), ideal for rapid proliferation studies. CT shows structure, MRI details tissues, ultrasonography uses sound none measure metabolism directly. PET's functional focus, per imaging, makes 'c' best.
Question 2 of 5
The nurse is aware that positioning and range-of-motion (ROM) exercises most help the immobilized patient to prevent:
Correct Answer: B
Rationale: For an immobilized patient, maintaining joint and muscle function is a priority, and contractures permanent shortening of muscles or tendons due to prolonged immobility are a significant risk. Positioning and ROM exercises keep joints flexible and muscles stretched, counteracting the tendency for tissues to stiffen and shorten when unused. Increased pain might occur with immobility, but ROM exercises primarily address stiffness rather than pain itself. Pressure ulcers result from prolonged pressure on skin, prevented more by repositioning than ROM alone. Compromised circulation can occur with immobility, but it's more directly managed by elevation or compression, not ROM exercises. Contractures are the most relevant outcome these interventions target, as they can lead to permanent disability if not addressed early, making this the primary focus of such care in immobilization scenarios.
Question 3 of 5
The anatomical structure that joins the bones of a joint together is referred to as:
Correct Answer: A
Rationale: Joints are stabilized by structures connecting bones directly. Ligaments are tough, fibrous tissues linking bone to bone, providing stability and limiting excessive movement, like the ACL in the knee. Tendons connect muscle to bone, facilitating movement, not joint union. Muscles generate force but don't join bones structurally. Cartilage cushions joints but doesn't bind bones together. Ligaments are the anatomical answer, as their primary role is maintaining joint integrity, distinguishing them from the other options focused on movement or padding rather than connection.
Question 4 of 5
The nurse is instructing a patient with rheumatic arthritis about the prescribed exercise program includes that the exercises should be:
Correct Answer: A
Rationale: Rheumatic arthritis requires exercises to maintain joint mobility and strength, but they must be tailored to avoid worsening inflammation. Doing them daily, 3-10 times per joint, promotes consistency and flexibility without overexertion, fitting a balanced program. Exercising during active inflammation can damage joints further, as rest is then advised. Continuing past pain risks injury, contradicting pain-as-a-guide principles. Doubling after a missed day could strain joints excessively. The daily repetition approach supports gradual improvement, respecting the condition's need for regular, gentle movement to manage stiffness and function, making it the safest, most effective instruction.
Question 5 of 5
An 80-year-old man falls and suffers a compound fracture of the femur. The most appropriate immediate action is to:
Correct Answer: C
Rationale: A compound fracture, with bone piercing skin, risks bleeding and infection, so the immediate action is stabilizing it. Splinting the leg as it lies immobilizes the fracture, minimizing further damage, blood loss, and pain until medical help arrives. Lying flat might worsen alignment or bleeding without stabilization. A tourniquet is extreme, used only for uncontrolled hemorrhage, not standard here. Straightening the leg risks worsening the injury, driving bone deeper or increasing bleeding. Splinting preserves the current state, aligning with first-aid principles for open fractures, ensuring safety and reducing complications before transport.