A loading dose of acetylcysteine (Mucomyst) 8 grams, which is available as a 20% solution (200 mg acetylcysteine per ml) is prescribed by nasogastric tube for a client with acetaminophen toxicity. How many ml of diluent should be added to the medication to obtain a 1:4 concentration? (Enter the numerical value only. If rounding is required, round to the whole number.)

A child who weighs 55 pounds receives a prescription for atovaquone with proguanil (Malarone Pediatric) 125 mg/50 mg PO daily. A drug reference states that children 11 to 20 kg should receive 1 pediatric tablet daily; 21 to 30 kg should receive 2 pediatric tablets daily; 31 to 40 kg should receive 3 pediatric tablets daily; and greater than 40 kg should receive 1 adult tablet daily with food. The drug is available as atovaquone 62.5 mg/proguanil 25 mg pediatric tablets. How many tablets should the nurse administer?

A client receives a prescription for azithromycin (Zithromax) 500 mg PO x 3 days. Azithromycin is available as 250 mg scored tablets. How many tablets should the nurse administer per dose? (Enter the numerical value only.)