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 B
Explanation
A. Anorexia is a common manifestation of SIADH due to the effects of hyponatremia (low sodium levels) and fluid retention.
B. Edema of fluid overload is not a typical manifestation of SIADH. While SIADH leads to fluid retention due to excess antidiuretic hormone (ADH), the excess fluid is typically intracellular and does not cause peripheral edema as seen in conditions like heart failure or nephrotic syndrome.
C. Vomiting is a common manifestation of SIADH, often related to the effects of hyponatremia, which can irritate the gastrointestinal system.
D. Nausea is also a common symptom of SIADH due to the imbalance of electrolytes, particularly low sodium levels, which can affect the brain and lead to nausea.
Correct Answer is A
Explanation
A. Alkalemia refers to a condition in which the blood pH is higher than the normal range (7.35–7.45), specifically above 7.45. A pH of 7.5 indicates alkalemia, which is an increase in blood pH.
B. Alkalosis refers to a condition in which the body is in a state of alkalinity, but it is a broader term that can describe either metabolic or respiratory alkalosis. Alkalemia specifically refers to the pH measurement itself.
C. Acidosis refers to a condition in which the blood pH is lower than normal (below 7.35), indicating an excess of hydrogen ions or a deficiency of bicarbonate.
D. Acidemia refers to a condition in which the blood pH is below the normal range, indicating acidosis. A pH of 7.5 does not fall into this category.
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