The nurse is assessing for correct placement of a nasogastric tube. The nurse aspirates the stomach contents, checks the gastric pH, and notes a pH of 7.35. Based on this information, which action should the nurse take at this time?
Document that the nasogastric tube is in the correct place.
Notify the health care provider.
Check for placement by auscultating for air injected into the tube.
Retest the pH using another strip.
The Correct Answer is B
Choice A Reason:
Documenting that the nasogastric tube is in the correct place is not appropriate in this scenario. A gastric pH of 7.35 is too high for stomach contents, which typically have a pH between 1.5 and 3.5. This high pH suggests that the tube may be misplaced, possibly in the respiratory tract or another non-gastric location. Therefore, documenting the tube as correctly placed could lead to serious complications if the tube is indeed misplaced.
Choice B Reason:
Notifying the health care provider is the most appropriate action. A pH of 7.35 is indicative of a potential misplacement of the nasogastric tube. The health care provider needs to be informed immediately to take corrective actions, such as ordering an X-ray to confirm the tube’s placement or re-evaluating the tube’s position. This step is crucial to ensure patient safety and prevent complications such as aspiration pneumonia or other adverse effects.
Choice C Reason:
Checking for placement by auscultating for air injected into the tube is an outdated and unreliable method. This technique can sometimes give false assurance of correct placement, as the sound of air can be heard even if the tube is in the respiratory tract. Current best practices recommend using pH testing and radiographic confirmation for accurate placement verification.
Choice D Reason:
Retesting the pH using another strip might seem like a reasonable step, but it is not the best immediate action. If the initial pH test shows a value of 7.35, it is unlikely that retesting will yield a significantly different result. The priority should be to notify the health care provider to address the potential misplacement promptly.
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Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["31"]
Explanation
Let’s calculate the IV infusion rate step by step.
Step 1: Determine the total volume to be infused.
The total volume ordered is 1,000 mL.
Step 2: Determine the total time for the infusion.
The total time is 8 hours.
Step 3: Calculate the infusion rate in mL per hour.
Total volume (1,000 mL) ÷ Total time (8 hours) = 125 mL per hour.
Result: 125
Step 4: Determine the drop factor.
The IV tubing delivers 15 drops per milliliter.
Step 5: Calculate the infusion rate in drops per minute.
Infusion rate (125 mL per hour) × Drop factor (15 drops per mL) = 1,875 drops per hour.
Result: 1,875
Step 6: Convert the infusion rate to drops per minute.
Total drops per hour (1,875 drops) ÷ 60 minutes = 31.25 drops per minute.
Result: 31.25
Step 7: Round the result to the nearest whole number if necessary.
31.25 rounded to the nearest whole number is 31.
The nurse should run the IV infusion at a rate of 31 drops per minute.
Correct Answer is C
Explanation
Choice A: Severe Hypertension
Severe hypertension can be a sign of increased intracranial pressure (ICP), but it is not typically the earliest sign. Hypertension often occurs as a compensatory mechanism to maintain cerebral perfusion pressure. While it is a significant finding, it usually follows other more immediate signs of increased ICP.
Choice B: Dilated and Nonreactive Pupils
Dilated and nonreactive pupils are a late sign of increased ICP and indicate severe brainstem compression. This finding suggests that the pressure has reached a critical level, leading to brain herniation. It is a very serious sign but not the earliest indicator of increasing ICP.
Choice C: Decreased Level of Consciousness
A decreased level of consciousness is often the earliest and most sensitive indicator of increasing ICP. Changes in consciousness can range from confusion and lethargy to complete unresponsiveness. This symptom reflects the brain’s response to increased pressure and reduced cerebral perfusion, making it a critical early sign that requires immediate attention.
Choice D: Projectile Vomiting
Projectile vomiting can occur with increased ICP due to pressure on the vomiting centers in the brainstem. However, it is not typically the earliest sign. Vomiting often accompanies other symptoms such as headache and changes in consciousness.
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