You get a paper cut and experience pain at the site. This response is related to:
Increased exudate and chemical mediators at the site.
Increased perfusion at the site
Bacteria that have entered the wound
Vasoconstriction at the site
The Correct Answer is A
A. Pain at the site of injury, such as a paper cut, is often due to the release of chemical mediators like prostaglandins, bradykinin, and histamines, which are part of the inflammatory response. These mediators increase blood flow and sensitivity in the affected area, contributing to pain. Exudate (fluid containing white blood cells and proteins) also forms at the site to aid in healing, and this can increase sensitivity.
B. Increased perfusion (blood flow) is part of the inflammatory response, but it is not the direct cause of pain. While increased blood flow helps deliver nutrients and immune cells to the site, it is the chemical mediators that cause pain.
C. Bacteria entering the wound could cause infection, but pain from a paper cut is typically related to the inflammatory response rather than infection. If infection were present, pain would usually be accompanied by other signs like redness, heat, and pus.
D. Vasoconstriction is the opposite of what happens at the site of an injury. Inflammation causes vasodilation, not vasoconstriction, to increase blood flow to the area.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. In diabetic ketoacidosis (DKA), serum bicarbonate is typically decreased, not increased. The decrease is due to metabolic acidosis resulting from the accumulation of ketones.
B. Serum potassium is often elevated in DKA initially due to the shift of potassium from inside the cells to the bloodstream as a result of acidosis. However, potassium levels may drop with treatment, especially with insulin administration, which drives potassium back into cells.
C. Urine pH in DKA is often acidic due to the presence of ketones, which are acidic byproducts of fat metabolism. A urine pH of 4.0 indicates aciduria, which is consistent with ketoacidosis.
D. Serum pH in DKA is typically low (below 7.35), indicating acidosis. A serum pH of 7.5 would suggest alkalosis, which is not typical of DKA.
Correct Answer is D
Explanation
A. Cystic fibrosis (CF) patients typically lose more salt through sweat, so they need extra salt in their diet, not a restriction. Restricting salt is not recommended for CF patients.
B. Limiting fluid intake is not appropriate for CF patients, as they often require adequate hydration to help thin mucus and improve respiratory function.
C. CF patients need a high-calorie, high-fat, and high-protein diet to support their increased metabolic demands and to help with nutrient absorption, as they often have malabsorption issues. Low-fat meals are not recommended.
D. Pancreatic enzyme replacement therapy is essential for CF patients because their pancreas does not produce enough enzymes to properly digest food. These enzymes should be taken with meals and snacks to aid digestion and nutrient absorption.
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