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 D
Explanation
A: Assessing the characteristics of the sputum is important for understanding the nature of the infection and the effectiveness of the treatment, but it is not the first action to take before the procedure.
B: Assessing pulse and respirations is the first action the nurse should take. This provides baseline data on the client’s respiratory and cardiovascular status, which is crucial for monitoring the client’s response to the procedure and ensuring safety.
C: Instructing the client to slowly exhale with pursed lips is a technique used to improve breathing efficiency and oxygenation, but it is not the first action to take before the procedure.
D: Auscultating lung fields is important for assessing the client’s respiratory status and identifying areas of congestion or decreased breath sounds, but it should follow the initial assessment of pulse and respirations.
Correct Answer is D
Explanation
A: Blood pressure of 178/90 mm Hg indicates hypertension, not dehydration. Dehydration typically leads to low blood pressure due to reduced blood volume.
B: Jugular vein distention is associated with fluid overload or heart failure, not dehydration. Dehydration usually results in flat neck veins.
C: A heart rate of 50 beats per minute is bradycardia and is not typically associated with dehydration. Dehydration often causes an increased heart rate (tachycardia) as the body tries to maintain adequate circulation.
D: Skin tenting present is a classic sign of dehydration. When the skin is pinched and does not return to its normal position quickly, it indicates a lack of fluid in the tissues.
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