A child with a heart defect is placed on a maintenance dose of Lanoxin elixir. The ordered dose is 0.07mg/kg/day in 2 divided doses. The child weighs 19 pounds. What is the maximum amount of medication that will be given per dose by the nurse?
The Correct Answer is ["0.3"]
Convert weight from pounds to kilograms:
19pounds÷2.2=8.64kg
Calculate the total daily dose:
0.07mg/kg/day×8.64kg=0.6048mg/day
Divide the daily dose into two doses:
0.6048mg/day÷2=0.3024mg/dose
Round off the dose to two decimal places:
0.3024mg≈0.30mg
The maximum amount of medication per dose is 0.3 mg.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. A 10-year-old with a burn on the palm of the hand: This could potentially be accidental, for example, from touching a hot surface. However, while it requires further investigation, it is not as strongly indicative of abuse as the given option.
B. A 6-year-old with splash burns on the front torso: These burns could result from accidentally spilling hot liquids. Though it raises concern, it often indicates an accident rather than abuse unless accompanied by other suspicious signs.
C. A 4-year-old with circular abrasions around the wrists: This is highly suspicious of abuse because circular abrasions can indicate that the child may have been tied or restrained, which is not typical of accidents or normal play.
D. A 2-year-old with a large bruise on the forehead: This type of injury is common in young children who are prone to falls and bumps. It might not immediately suggest abuse without additional context.
Correct Answer is A
Explanation
A. Pain. Pain is the hallmark symptom of a sickle cell crisis due to the vaso-occlusion of sickled red blood cells blocking blood flow and causing ischemia in various tissues and organs.
B. High fever. While fever can occur if there is an associated infection, it is not a primary feature of sickle cell crisis.
C. Bradycardia. Sickle cell crisis can cause tachycardia due to pain and stress, but not bradycardia.
D. Constipation. This is not a typical symptom associated with a sickle cell crisis.
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