A nurse is caring for a client who requires an NG tube. After inserting the tube, the nurse tests the pH of the client's aspirate. Which of the following pH levels should the nurse identify as an indication of correct placement of the tube?
8.0
6.0
7.0
4.0
The Correct Answer is D
A. 8.0: An aspirate pH of 8.0 would indicate an alkaline substance. This would not be typical of stomach contents, which are acidic. An alkaline pH might suggest placement in the intestines or respiratory tract.
B. 6.0: While this is less alkaline than 8.0, it is still not within the typical range for stomach contents. Stomach aspirate is generally more acidic.
C. 7.0: A pH of 7.0 is neutral. Stomach contents are typically more acidic, so a neutral pH would not be consistent with correct NG tube placement in the stomach.
D. 4.0: This is within the acidic range and is consistent with the pH of stomach contents. It would be considered an indication of correct NG tube placement in the stomach.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Correct answer: D
A.Wiping the top of the can before opening prevents contamination and reduces the risk of introducing pathogens into the feeding system.
B.Cold formula can cause gastric discomfort or cramping. It's recommended to bring the formula to room temperature before administration to avoid gastric irritation and enhance comfort during feeding.
C.The action of withholding the feeding depends on the institution's protocol and the specific clinical condition of the client. Typically, residuals greater than 200 mL might indicate delayed gastric emptying, but the threshold can vary. A residual volume of 150 mL may not necessarily require withholding the feeding, though it may warrant further assessment.
D.In most cases, flushing is done with tap water (if safe for drinking) or sterile water in immunocompromised clients. The key step is to flush before and after feedings, but the standard practice is not automatically sterile water for all patients.
Correct Answer is C
Explanation
A. Using the ball of the finger (the fleshy part) is not recommended as it can lead to more pain and discomfort. The side of the fingertip is generally preferred for less discomfort and more accurate results.
B. Avoids using the fingers of her dominant hand as puncture sites:While it's generally recommended to avoid using the fingers of your dominant hand for frequent blood glucose monitoring, it's not always necessary. The client can still obtain accurate readings from her dominant hand if she rotates puncture sites.
C. Using the side of the fingertip is a recommended practice. The side of the fingertip has fewer nerve endings than the pad of the finger, which helps reduce discomfort. This technique is commonly used for more accurate and less painful blood glucose testing.
D. Avoids using the thumbs as puncture sites:
Using thumbs as puncture sites is generally avoided because they might have thicker skin and could yield less accurate blood samples. Therefore, avoiding thumbs for blood glucose testing is a good practice.
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