A nurse is admitting a client who is dehydrated. Which BUN level should the nurse expect the client to have upon admission (Normal BUN 10-20)?
165 mg/dL
35 mg/dL
10 mg/dL
31 mg/dL
The Correct Answer is B
A: A BUN level of 165 mg/dL is extremely high and suggests severe dehydration or possible renal failure. This level is far above the normal range and indicates a critical condition.
B: A BUN level of 35 mg/dL is elevated and consistent with dehydration. Dehydration causes the kidneys to reabsorb more water, leading to higher concentrations of urea in the blood.
C: A BUN level of 10 mg/dL is within the normal range and does not indicate dehydration. This level suggests normal kidney function and hydration status.
D: A BUN level of 31 mg/dL is elevated and suggests dehydration. While not as high as 165 mg/dL, it still indicates that the patient is dehydrated and requires intervention.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A: Respiratory rate is the priority assessment before administering morphine. Morphine can depress the respiratory system, so it is crucial to ensure the client has an adequate respiratory rate before administration.
B: Urine output is important to monitor but is not the priority before administering morphine.
C: Bowel sounds are important to assess, especially for potential side effects like constipation, but they are not the priority before administering morphine.
D: Pupil reaction can indicate opioid effects but is not the priority assessment before administering morphine.
Correct Answer is B
Explanation
A: A drop in systolic blood pressure of 10 mm Hg (from 140 to 130) does not meet the criteria for orthostatic hypotension, which requires a drop of at least 20 mm Hg in systolic pressure or 10 mm Hg in diastolic pressure within three minutes of standing.
B: This finding shows a drop in systolic blood pressure from 130 to 110 mm Hg, which is a 20 mm Hg decrease. This meets the criteria for orthostatic hypotension, indicating that the patient may have this condition.
C: A drop in systolic blood pressure of 6 mm Hg (from 126 to 120) does not meet the criteria for orthostatic hypotension. The decrease is not significant enough to confirm the condition.
D: An increase in blood pressure (from 130/64 to 140/70) does not indicate orthostatic hypotension. This finding suggests that the patient’s blood pressure increases upon standing, which is not consistent with orthostatic hypotension.
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