A nurse is caring for a client who has an NG tube. The nurse tests the pH of the secretions to determine if the tube is correctly placed. Which of the following readings should the nurse expect?
pH 1-4
pH 5-7
pH 8-10
pH 11-14
The Correct Answer is A
A reason:
A pH reading of 1-4 is expected for gastric contents. This acidic range indicates that the NG tube is correctly placed in the stomach, where gastric secretions have a low pH due to hydrochloric acid.
B reason:
A pH reading of 5-7 is more indicative of respiratory secretions or the contents of the small intestine, not the stomach. This range suggests that the NG tube may be incorrectly placed.
C reason:
A pH reading of 8-10 is too alkaline for gastric contents and indicates incorrect tube placement. This range could suggest the presence of intestinal or respiratory secretions, not gastric.
D reason:
A pH reading of 11-14 is highly alkaline and unlikely to be encountered in clinical practice for this purpose. Such a high pH is not compatible with gastric contents and suggests a significant error or contamination in the test.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A reason:
BUN (blood urea nitrogen) is primarily used to assess kidney function and hydration status. It is not a direct indicator of infection.
B reason:
RBC (red blood cell) count measures the number of red blood cells and is used to assess anemia and other blood disorders. It does not indicate infection.
C reason:
WBC (white blood cell) count is correct. An elevated WBC count is a common indicator of infection, as white blood cells are part of the body's immune response to fight off pathogens.
D reason:
Potassium levels are related to electrolyte balance and are not directly indicative of infection.
Correct Answer is C
Explanation
A reason:
The evaluation phase involves assessing the effectiveness of the interventions and care plan, rather than gathering initial information about potential allergies. Asking about allergies comes earlier in the process.
B reason:
The planning phase focuses on setting goals and determining interventions based on the assessment data. While allergies are considered during planning, the initial gathering of allergy information occurs earlier.
C reason:
The assessment phase is correct. This is when the nurse collects comprehensive data about the client’s health status, including potential allergies. Gathering this information during assessment helps to prevent adverse reactions and plan safe care.
D reason:
The implementation phase involves carrying out the interventions outlined in the care plan. By this stage, any allergies should already be identified and documented to ensure safe execution of the care plan.
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