A nurse is preparing to administer an enteral feeding to a client who has an NG tube in place.
Which of the following methods should the nurse use to verify the correct placement of the NG tube?
Check the pH of the gastric aspirate.
Observe the color of the gastric aspirate after adding blue dye to the formula.
Auscultate over the epigastrium.
Measure the length of the inserted NG tube.
The Correct Answer is A
A. Correct. Checking the pH of the gastric aspirate is the most reliable method to verify the correct placement of the NG tube. Gastric aspirate typically has an acidic pH (pH < 5), indicating that the tube is in the stomach.
B. Observing the color of the gastric aspirate after adding blue dye to the formula is not a standard or recommended method for verifying NG tube placement.
C. Auscultating over the epigastrium may help to identify the presence of air in the stomach, but it does not confirm that the NG tube is correctly placed in the stomach or the intestines.
D. Measuring the length of the inserted NG tube can help determine the distance from the nose to the stomach, but it does not ensure correct placement in the stomach.
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Related Questions
Correct Answer is B
Explanation
Metabolic acidosis is a condition where the blood's pH is lowered due to an excess of non-volatile acids in the body, such as lactic acid, ketoacids, or ingested acids. This can occur due to diabetes, kidney failure, diarrhea, or ingestion of toxins.
The body has several mechanisms to compensate for metabolic acidosis and restore the normal pH balance. One of them is to hyperventilate, which helps to remove CO2 from the body and reduce the formation of H2CO3.
Correct Answer is D
Explanation
A thrombus is a blood clot that forms inside a blood vessel or the heart, which can obstruct blood flow and cause complications such as ischemia or embolism. One of the factors that predispose thrombus formation is stasis of blood flow, which means slow or stagnant movement of blood in a vessel or chamber, which can allow platelets and fibrin to accumulate and form a clot.
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