A patient has a new order for intermittent nasogastric feedings every 4 hours. The nasogastric tube is placed by the nurse. What is the most accurate method for confirming the placement of the tube before initiating the feeding?
Auscultate the right upper quadrant of the abdomen while injecting air into the tube.
Obtain radiography of the abdomen
Auscultate the left upper quadrant of the abdomen while injecting air into the tube.
Check the pH of fluid aspirated from the tube.
The Correct Answer is D
A. Auscultating the right upper quadrant of the abdomen while injecting air into the tube is an outdated and unreliable method for confirming tube placement. This technique can lead to false positives and is not recommended.
B. Obtaining radiography of the abdomen is a highly accurate method for confirming nasogastric tube placement but is not always the first-line method due to the need for imaging and exposure to radiation. However, it may be used if other methods are uncertain.
C. Auscultating the left upper quadrant of the abdomen while injecting air into the tube is another outdated and unreliable method, similar to auscultating the right upper quadrant.
D. Checking the pH of fluid aspirated from the tube is the most accurate and recommended method. Gastric fluid typically has a pH of 1.5 to 3.5, whereas respiratory or intestinal fluids have higher pH levels. Checking the pH is a simple and reliable way to confirm the placement of the nasogastric tube.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Fidelity refers to being loyal, faithful, and keeping promises, but it is not the primary principle when obtaining informed consent.
B. Nonmaleficence means "do no harm," which is important in healthcare but does not directly relate to the process of informed consent.
C. Beneficence involves promoting good and acting in the best interest of the patient but is secondary to ensuring informed consent is given.
D. Veracity is the ethical principle of truth-telling. It is most important when obtaining informed consent because the patient must fully understand the information about the procedure, including the risks and benefits, before giving consent.
Correct Answer is B
Explanation
A. Protein may be restricted in cases of liver failure to prevent ammonia buildup, but calcium isn't typically restricted in liver failure.
B. In acute liver failure and encephalopathy, protein may be restricted to minimize ammonia production, and sodium may be restricted to manage fluid retention and prevent further complications.
C. Fat and magnesium are not typically restricted in this condition.
D. Carbohydrate and potassium are not primary dietary restrictions for acute liver failure.
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