Individuals with diabetes, a minor injury to the foot can cause major complications due to:
Increased WBC in the blood.
Edema to the tissues
Increase blood flow by giving more oxygen to the tissues.
Decreased blood flow to the tissues causing gangrene.
The Correct Answer is D
Choice A reason: While white blood cells (WBC) are essential for fighting infections, increased WBCs in the blood is not the reason why a minor injury can cause major complications in individuals with diabetes. In fact, diabetes can impair the function of WBCs, making it harder to fight infections.
Choice B reason: Edema, or swelling, can occur in individuals with diabetes, especially in the lower extremities. However, it is not the primary reason why minor injuries can lead to severe complications. Edema can contribute to discomfort and further complications, but it is not the root cause.
Choice C reason: Increased blood flow and oxygen delivery to tissues would generally be beneficial for healing. However, individuals with diabetes often have impaired blood flow, not increased blood flow. This impairment can hinder the healing process and lead to complications.
Choice D reason: The major reason why a minor injury can cause significant complications in individuals with diabetes is due to decreased blood flow to the tissues. Diabetes can cause damage to blood vessels and nerves (peripheral neuropathy), leading to poor circulation and a reduced ability to sense injuries. This decreased blood flow can prevent adequate delivery of oxygen and nutrients to the tissues, leading to slow healing, increased risk of infection, and in severe cases, gangrene (tissue death). Without proper blood flow, even minor injuries can become serious and may require medical intervention, including possible amputation to prevent the spread of infection.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A reason: Lispro (Insulin lispro) does not primarily act to reduce insulin resistance. Instead, it is a rapid-acting insulin analog used to manage blood glucose levels in people with diabetes.
Choice B reason: Lispro does not prevent the formation of glucose. Its main function is to help control blood sugar levels by replacing the insulin that the body is not producing enough of.
Choice C reason: Lispro does not decrease the body's need for glucose in body cells. Instead, it helps facilitate the uptake of glucose into cells by mimicking the action of natural insulin.
Choice D reason: Lispro acts as an insulin replacement. It is a fast-acting insulin analog that helps control blood sugar levels by mimicking the body's natural insulin, which is essential for the metabolism of glucose.
Correct Answer is C
Explanation
Choice A reason: Positive feedback mechanisms amplify changes or deviations in the body. They are less common in physiological processes and typically drive processes to completion, such as childbirth and blood clotting. The regulation of blood glucose levels does not operate on a positive feedback mechanism.
Choice B reason: Releasing hormones are typically involved in the hypothalamic-pituitary axis and the regulation of hormone secretion from other endocrine glands. Examples include thyrotropin-releasing hormone (TRH) and gonadotropin-releasing hormone (GnRH). Insulin secretion in response to blood glucose levels is not directly controlled by releasing hormones.
Choice C reason: Negative feedback is the primary mechanism by which homeostasis is maintained in the body. When blood glucose levels rise, the pancreas secretes insulin to lower blood glucose levels, restoring them to normal. This is an example of negative feedback, as the increase in glucose levels triggers a response (insulin secretion) that counteracts the initial change, bringing blood glucose back to its set point.
Choice D reason: Ectopic hormones are hormones produced by tissues that normally do not produce hormones, often in cases of tumors or certain disease conditions. The regulation of insulin in response to blood glucose levels does not involve ectopic hormone production.
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