A nurse is monitoring a client who is dehydrated. Which of the following laboratory findings should the nurse report to the provider?
Hematocrit 45% (37% to 52%)
Creatinine 0.9 mg/dL (0.5-1.2 mg/dL)
BUN 25 mg/dL (10-20 mg/dL)
Urine specific gravity 1.028 (1.005 to 1.030)
The Correct Answer is C
A. Hematocrit 45% (37% to 52%): This value is within the normal range for hematocrit. Dehydration may increase the hematocrit due to a relative increase in red blood cell concentration, but 45% is still within normal limits.
B. Creatinine 0.9 mg/dL (0.5-1.2 mg/dL): This value is within the normal range for creatinine, indicating normal kidney function.
C. BUN 25 mg/dL (10-20 mg/dL): An elevated BUN level is a sign of dehydration as it reflects increased protein breakdown and decreased renal perfusion. This value is above the normal range and should be reported to the provider.
D. Urine specific gravity 1.028 (1.005 to 1.030): This value is within the normal range and indicates that the kidneys are concentrating urine, which is typical in dehydration as the body tries to conserve water.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Hypertension: Low calcium levels are not typically associated with hypertension. In fact, hypocalcemia can lead to a variety of neurological symptoms such as muscle spasms and tetany.
B. Increased thirst: Increased thirst is not a direct symptom of hypocalcemia. It may be seen in diabetes or dehydration but not typically in hypocalcemia.
C. Muscle tetany: Hypocalcemia is a common result of thyroidectomy, especially if the parathyroid glands were affected during surgery. This condition can lead to muscle tetany, which involves involuntary muscle contractions or spasms.
D. Diaphoresis: Diaphoresis is not commonly associated with hypocalcemia. Sweating is more related to stress, pain, or fever.
Correct Answer is B
Explanation
A. Sodium level 140 mEq/L (136-145 mEq/L): This sodium level is within the normal range and is not of concern.
B. Magnesium level 1.0 mEq/L (1.3-2.1 mEq/L): This value is below the normal range, indicating hypomagnesemia, which can cause serious complications such as arrhythmias, neuromuscular irritability, and seizures. This is the most concerning value.
C. Calcium level 10 mg/dL (9-10.5 mg/dL): This calcium level is within the normal range and is not concerning.
D. Potassium level 3.5 mEq/L (3.5-5 mEq/L): This potassium level is at the low end of normal. While it is something to monitor, it is not immediately concerning compared to hypomagnesemia.
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