You have an order to give a child a dose of Ampicillin based on the child's body surface area. The child weighs 14 pounds. The normal adult dose is 1000 mg every 4-6 hours prn. The child's BSA is 0.45 m2. The Ampicillin is available as 250mg/5mL. How many mg would you administer to the child? Use the BSA method of calculation.
The Correct Answer is ["260"]
Use the BSA (Body Surface Area) formula to calculate the child’s dose:
Child's dose = BSA of child × (Adult dose ÷ 1.73)
Child's dose = 0.45 × (1000 ÷ 1.73)
Child's dose = 0.45 × 578.03
Child's dose ≈ 260.1 mg
Round to a practical dose: 260 mg
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. This is incorrect and dangerous—aspirinis strongly associated with Reye's syndromewhen given to children with viral infections (e.g., flu, chickenpox).
B. While testing may be appropriate if symptoms arise, this does not preventthe syndrome.
C. The most important preventive teaching is to avoid giving salicylates (like aspirin)to children with viral symptoms, as this is a known risk factor for Reye's syndrome, a potentially fatal condition.
D. There is no vaccinespecifically for Reye’s syndrome, so immunization is not a method of prevention.
Correct Answer is D
Explanation
A. Muscle biopsies are not used to diagnose MS; they are more relevant in diagnosing muscle disorders, not central nervous system demyelination.
B. There are no definitive blood markers specific to MS; blood tests are mainly used to rule out other conditions.
C. A lumbar puncture may support a diagnosis by revealing oligoclonal bands or inflammatory markers, but it is not the primary determinant.
D. The diagnosis of MS is largely clinical, based on a combination of the patient’s history, reported symptoms (such as vision problems, weakness, and numbness), and neurological examination findings, often supported by MRI and other tests.
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