A nurse is teaching student nurses about different types of medical conditions that affect the gastrointestinal system, when a student asks her about the cause of esophageal varices. What is an appropriate answer by the nurse when asked about a potential cause of esophageal varices?
"Obesity has been a known cause of esophageal varices"
"It is caused by smoking"
"It is caused by high blood pressure"
"It is caused by chronic liver disease"
The Correct Answer is D
A. While obesity can contribute to various health issues, it is not a direct cause of esophageal varices.
B. Smoking is harmful to overall health, but it is not specifically known to cause esophageal varices.
C. High blood pressure, especially systemic hypertension, is not a direct cause of esophageal varices. However, portal hypertension, which can be caused by liver disease, is the main factor in the development of esophageal varices.
D. Chronic liver disease, particularly cirrhosis, leads to portal hypertension, which in turn causes the veins in the esophagus to become engorged and prone to bleeding, resulting in esophageal varices. This is the most appropriate cause for esophageal varices.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. A hiatal hernia can increase the risk of gastroesophageal reflux disease (GERD) because the hernia can cause the lower esophageal sphincter to malfunction, leading to the backflow of stomach acid into the esophagus. This increases the risk of reflux symptoms, such as heartburn and regurgitation.
B. There is no direct link between a hiatal hernia and an increased risk for stomach cancer. While long-term GERD can contribute to other esophageal issues, such as Barrett’s esophagus, it does not directly cause stomach cancer.
C. A hiatal hernia does not increase the risk of intestinal cancer. Its primary association is with GERD and related complications.
D. A hiatal hernia is not associated with an increased risk for lung disease. However, severe GERD symptoms can cause respiratory issues such as aspiration pneumonia, but this is not the same as directly increasing the risk of lung disease.
Correct Answer is A
Explanation
A. The IV tubing for TPN should be changed every 24 hours to prevent infection, as TPN is a high-risk solution for bacterial growth due to its high glucose content. Regular changes help reduce the risk of contamination and complications such as bloodstream infections.
B. The IV site dressing should be changed at least every 48 to 72 hours (or per institutional policy) to maintain aseptic technique and minimize infection risk. Changing the dressing every 4 days may exceed this timeframe and increase the risk of infection.
C. Weighing the client is important to monitor fluid balance, but daily weighing is more typical than every other day for clients receiving TPN. This helps to assess nutritional status and detect potential fluid overload or deficit.
D. Blood glucose levels should be monitored more frequently, typically every 6 hours, because TPN can cause significant fluctuations in blood glucose. Checking every 12 hours would not be adequate for early detection of hyperglycemia or hypoglycemia.
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