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 D
Explanation
A. Intact skin with localized erythema:
Explanation: This description is more consistent with a stage 1 pressure injury, where there is non-blanchable erythema.
B. Full thickness skin loss with visible bone:
Explanation: This description is more consistent with a stage 4 pressure injury, which involves extensive tissue loss, including exposure of bone.
C. Full thickness skin loss with visible adipose tissue:
Explanation: This finding is characteristic of a stage 3 pressure injury, where the loss of tissue extends down to the subcutaneous layer.
D. Partial-thickness skin loss with red tissue in the wound bed:
Explanation: This description is consistent with a stage 2 pressure injury, where there is partial-thickness skin loss involving the epidermis and possibly the dermis, forming a shallow open ulcer with a red-pink wound bed.
Correct Answer is C
Explanation
A. Hypertension:
Hypovolemia is characterized by a decrease in blood volume. This reduction in blood volume usually leads to decreased blood pressure, not hypertension.
B. Peripheral edema:
Edema is more commonly associated with hypervolemia (excess fluid volume) rather than hypovolemia. In hypovolemia, the body is experiencing a deficit of fluids, and edema is not a typical manifestation.
C. Oliguria:
This is the correct answer. Oliguria, or reduced urine output, is a common finding in hypovolemia. When the body is low on fluids, the kidneys try to conserve water by decreasing urine production.
D. Bradycardia:
Hypovolemia often leads to tachycardia (an increased heart rate) as the body attempts to compensate for the decreased blood volume by pumping the existing blood more quickly. Bradycardia is not a typical finding in hypovolemia.
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