Which of the following is a priority intervention to provide comfort for the child with pruritus associated with varicella zoster virus?

1 kilogram equals 2.2 pounds.

The preschooler weighs 29 pounds, which is approximately 13.18 kilograms (29/2.2). The order is for 40 mg/kg/day

13.18 kg * 40 mg/kg = 527.2 mg/day.

Since the medication is to be administered every 12 hours, divide this daily dosage by 2 to get the per dose amount: 527.2 mg/day / 2 = 263.6 mg/dose.

Now, using the concentration of the elixir, which is 250 mg/5 mL, set up a proportion to find out how many milliliters are needed for the prescribed dose: 250 mg : 5 mL = 263.6 mg : X mL.

Solving for X gives us (263.6 mg * 5 mL) / 250 mg = 5.272 mL per dose.

Rounding to the nearest tenth, the nurse should administer 5.3 mL per dose.

A. Cephalosporins are a class of antibiotics that can, in some cases, cause liver enzyme elevations and hepatotoxicity. While not all cephalosporins are associated with significant liver toxicity, there have been reports of liver dysfunction with some members of this class.
B. Sulfonamides can also cause hepatotoxicity, particularly in certain individuals. They are known to occasionally lead to liver enzyme elevations and even more severe liver damage in susceptible patients.
C. Penicillins are generally considered safe regarding hepatotoxicity; however, there can be rare instances of liver enzyme elevation associated with some penicillin derivatives, particularly in cases of prolonged use or in patients with existing liver disease. Nonetheless, they are not commonly associated with significant hepatotoxicity.
D. Fluoroquinolones can cause liver toxicity, although it is relatively rare. Some fluoroquinolones have been associated with elevated liver enzymes and other hepatic issues.