A nurse is reviewing the laboratory report of a newly admitted school-age child who has a fever. The nurse should identify which of the following laboratory results is an indication of an infection and should be reported to the charge nurse immediately.
Urine osmolality 500 mOsm/kg.
WBC 17,500/mm3.
BUN 12 mg/dL.
Urine specific gravity 1.014.
The Correct Answer is B
Choice A rationale:
Urine osmolality 500 mOsm/kg. Urine osmolality is a measure of urine concentration and is not a reliable indicator of infection. It reflects the kidney's ability to concentrate urine and can vary based on hydration status and other factors. An elevated urine osmolality could suggest dehydration, not necessarily infection.
Choice B rationale:
WBC 17,500/mm3. This is the correct choice. An elevated white blood cell count (WBC) is a hallmark sign of infection. The body's immune response to an infection often includes an increase in WBC count, particularly the neutrophil count. This elevation is known as leukocytosis and is a red flag for infection.
Choice C rationale:
BUN 12 mg/dL. Blood Urea Nitrogen (BUN) measures kidney function and hydration status. While an elevated BUN can indicate dehydration, it is not a specific marker for infection. BUN levels can be influenced by various factors, including diet and renal function.
Choice D rationale:
Urine specific gravity 1.014. Urine-specific gravity reflects the concentration of solutes in urine and the kidney's ability to concentrate or dilute urine. While changes in urine specific gravity can indicate dehydration or overhydration, it is not a direct indicator of infection. An infection is better detected through changes in WBC count and other clinical signs.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale:
Placing the infant in a supine position during naps might not be the best action for an infant with heart failure. In heart failure, infants often experience difficulty breathing due to fluid accumulation in the lungs. Placing the infant in a more upright position, such as semi-Fowler's, can help alleviate some of this respiratory distress.
Choice B rationale:
Feeding the infant a bottle every 4 hours is important, but it might not directly address the immediate concerns of an infant with heart failure. Infants with heart failure might have difficulty feeding due to fatigue and respiratory distress. Feeding smaller, more frequent meals and assessing the infant's feeding tolerance is crucial.
Choice C rationale:
Correct Answer. Documenting the infant's respiratory rate every 2 hours is an important action. Infants with heart failure often have respiratory distress and an increased respiratory rate, as the body tries to compensate for decreased cardiac output. Documenting the respiratory rate will help the healthcare team monitor the infant's condition and assess the effectiveness of interventions.
Choice D rationale:
Withholding digoxin if the infant's heart rate is greater than 100/min is not necessarily the correct action. Digoxin is a medication commonly used in heart failure to improve cardiac contractility. While it's important to monitor the infant's heart rate, a heart rate of greater than 100/min might be due to the body's compensatory mechanisms in response to heart failure. Withholding the medication without consulting a healthcare provider might not be appropriate.
Correct Answer is A
Explanation
The answer is a. Hard-boiled egg.
Hard-boiled eggs are a safe snack for a toddler.They are soft, easy to chew, and rich in nutrients.
Now, let’s discuss why the other options are not recommended:
b. Grapes: Whole grapes are not recommended for toddlers due to the risk of choking.They are round and slippery, making them difficult for toddlers to chew properly.
c. Raw carrots: Similar to grapes, raw carrots pose a choking hazard for toddlers.They are hard and can break into large pieces that might block a toddler’s airway.
d. Popcorn: Popcorn is not safe for toddlers. The kernels can get stuck in a toddler’s throat and cause choking.Moreover, unpopped or partially popped kernels are hard and can also pose a choking risk.
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