What is the principle function of blood flow in the cardiovascular system?
Bathe the cells in a nutrient rich media for nourishment.
Link cells to provide a means of communication with adjoining cells.
Maintain acid base balance to achieve homeostasis.
Provide oxygen and remove carbon dioxide and waste products.
The Correct Answer is D
The primary function of blood flow in the cardiovascular system is to deliver oxygen and nutrients to cells while removing carbon dioxide and waste products. This process is crucial for maintaining cellular function and overall homeostasis in the body.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","B","D"]
Explanation
Choice A reason:
Improvement in activities of daily living (ADLs) and displaying hopefulness in interactions with others are positive nonverbal cues indicating that therapy and medication are effective. These improvements suggest that Edward is regaining interest in daily activities and looking forward to the future.
Choice B reason:
Being less tearful and able to discuss openly the loss of his grandfather with friends and in group settings are signs that Edward is processing his grief and benefiting from therapy. Open communication about his loss indicates emotional progress and acceptance.
Choice C reason:
Continuing to isolate is not a positive nonverbal cue. Isolation suggests that Edward is still struggling with his depressive symptoms and not fully engaging with his support system. This behavior indicates that further intervention may be needed.
Choice D reason:
Smiling appropriately and interacting with peers are positive nonverbal cues that therapy and medication are working. These behaviors show that Edward is beginning to re-engage socially and experience moments of joy and connection.
Correct Answer is ["A","C","D"]
Explanation
Choice A reason:
If Mr. Greene has memory retention and a neurological evaluation that has demonstrated understanding of how to follow the sliding scale and recognize proper dosage, use, and potential side effects of insulin, he is a candidate for self-administration. This ensures he can manage his insulin therapy safely and effectively.
Choice B reason:
If Mr. Greene states “I can do it” but has severe hand tremors, he is not a candidate for self-administration of insulin. Severe hand tremors can impair his ability to accurately draw up and administer the correct dose of insulin, increasing the risk of errors.
Choice C reason:
If Mr. Greene demonstrates the ability to self-administer insulin over a period of time successfully using the “Teach Back” method by a number of staff or visiting nurse, he is a candidate for self-administration. The “Teach Back” method confirms that he understands and can perform the procedure correctly.
Choice D reason:
If Mr. Greene no longer is actively suicidal and has hand-eye coordination that is accurate, he is a candidate for self-administration of insulin. Accurate hand-eye coordination is essential for safely drawing up and administering insulin.
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