A client with diabetes mellitus develops an ulcer on the bottom of the foot. Which pathology is the primary contributing factor to the ability of the ulcer to heal?

Sensory neuropathy.

Hyperlipidemia.

Ketoacidosis.

Microvascular changes.

Answer and Explanation

The Correct Answer is D

A) Sensory neuropathy:

Sensory neuropathy, while common in diabetes mellitus, primarily affects sensation in the extremities and can lead to reduced pain perception and protective sensation. While sensory neuropathy can contribute to the development of foot ulcers by reducing the ability to detect trauma or pressure, it is not the primary factor influencing the ability of the ulcer to heal.

B) Hyperlipidemia:

Hyperlipidemia, characterized by elevated levels of lipids (cholesterol and triglycerides) in the blood, is a common comorbidity in diabetes mellitus. It can contribute to the development of atherosclerosis and macrovascular complications such as coronary artery disease and peripheral arterial disease. While macrovascular disease can impair wound healing by reducing blood flow to the affected area, it is not the primary contributing factor to the ability of the ulcer to heal.

C) Ketoacidosis:

Ketoacidosis, a serious complication of uncontrolled diabetes mellitus, results from the accumulation of ketones in the blood, leading to metabolic acidosis. While ketoacidosis can have systemic effects and impair overall health, it is not directly related to the ability of a foot ulcer to heal.

D) Microvascular changes:

Correct. Microvascular changes, such as thickening of the capillary basement membrane and endothelial dysfunction, are hallmark features of diabetes mellitus. These changes lead to impaired microcirculation, reduced oxygen delivery, and compromised nutrient supply to tissues, including the skin and soft tissues of the foot. Poor microvascular perfusion contributes to delayed wound healing and an increased risk of infection in individuals with diabetes mellitus. Addressing microvascular changes is essential for promoting wound healing in diabetic foot ulcers, making it the primary contributing factor to the ability of the ulcer to heal.

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Correct Answer is A

Explanation

A. Gastric carcinoma:

Helicobacter pylori infection is a known risk factor for the development of gastric carcinoma, or stomach cancer. Long-term follow-up is essential for clients treated for gastric ulcers caused by H. pylori infection to monitor for any signs or symptoms of gastric malignancy, such as persistent abdominal pain, unexplained weight loss, dysphagia, or gastrointestinal bleeding. Regular surveillance with endoscopic examinations may be recommended to detect any precancerous or cancerous changes in the gastric mucosa.

B. Hypokalemia:

Hypokalemia, or low potassium levels, is not directly associated with gastric ulcers caused by H. pylori infection. While certain medications used in the treatment of gastric ulcers, such as proton pump inhibitors (PPIs) or H2-receptor antagonists, may increase the risk of hypokalemia, it is not a long-term complication specifically related to H. pylori infection.

C. Kidney stones:

Kidney stones, or nephrolithiasis, are not directly associated with gastric ulcers caused by H. pylori infection. Kidney stones typically form in the kidneys and urinary tract due to factors such as dehydration, dietary factors, or metabolic disorders. While certain conditions, such as chronic kidney disease, may be associated with gastric ulcers, kidney stones are not a typical long-term complication.

D. Celiac disease:

Celiac disease is an autoimmune disorder characterized by an abnormal immune response to gluten, a protein found in wheat, barley, and rye. It is not directly associated with gastric ulcers caused by H. pylori infection. Celiac disease primarily affects the small intestine, leading to inflammation and damage to the intestinal lining in response to gluten ingestion. While individuals with celiac disease may experience gastrointestinal symptoms, they are not at increased risk for gastric ulcers specifically related to H. pylori infection.

A. Histamine-mediated vascular permeability leading to fluid transudation. B. Bradykinin cascade resulting in the accumulation of substance P. C. Thromboxane A activation of chemical mediators. D. Neutrophil migration secondary to chemotaxis.

Correct Answer is A

Explanation

A) Histamine-mediated vascular permeability leading to fluid transudation:

Correct. Ankle edema following an ankle sprain is often due to inflammation and increased vascular permeability. Histamine, released from mast cells and basophils during the inflammatory response, causes vasodilation and increases vascular permeability. This leads to the leakage of fluid from the blood vessels into the surrounding tissues, resulting in edema.

B) Bradykinin cascade resulting in the accumulation of substance P:

While bradykinin is involved in the inflammatory response and can contribute to pain and vasodilation, it does not directly cause fluid transudation leading to edema in the context of an ankle sprain.

C) Thromboxane A activation of chemical mediators:

Thromboxane A is involved in platelet aggregation and vasoconstriction rather than increasing vascular permeability and edema formation.

D) Neutrophil migration secondary to chemotaxis:

Neutrophil migration is part of the inflammatory response and can contribute to tissue damage and inflammation, but it is not the primary mechanism responsible for the development of edema following an ankle sprain.

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A client with diabetes mellitus develops an ulcer on the bottom of the foot. Which pathology is the primary contributing factor to the ability of the ulcer to heal?

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