A nurse is caring for a child who has recurrent otitis media. The child weighs 14.9 kg (33 lb). A prescription is written for amoxicillin 40 mg/kg PO to be given in two divided doses per day. The pharmacy provides the nurse with amoxicillin 250 mg/5 mL. How many mL of the medication should the nurse plan to administer for each dose? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["6"]
Calculate the total daily dose:
Total daily dose (mg) = Weight (kg) x Dosage (mg/kg/day)
=14.9 kg x 40 mg/kg/day
= 596 mg/day
Calculate the dose per administration (divided into two doses):
Dose per administration (mg) = Total daily dose (mg) / Number of doses
= 596 mg/day / 2 doses
= 298 mg/dose
Calculate the volume to administer per dose:
Volume (mL) = Desired dose (mg) / Available concentration (mg/mL)
Available concentration = 250 mg / 5 mL
= 50 mg/mL
Volume (mL) = 298 mg / 50 mg/mL
= 5.96 mL/dose
Round to the nearest whole number:
5.96 mL is 6 mL/dose
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. A pregnant parent. A child can receive the varicella vaccine even if the parent is pregnant. While the varicella vaccine is a live attenuated vaccine, the vaccinated child does not pose a significant risk of transmission to others. The parent should avoid direct contact with the vaccinee's rash if one develops, but this is not a contraindication to immunization.
B. Receiving treatment for leukemia. Children undergoing treatment for leukemia often have weakened immune systems due to chemotherapy or radiation. The varicella vaccine is a live attenuated vaccine, meaning it contains a weakened form of the virus that could cause severe illness in immunocompromised individuals. These children should not receive live vaccines until their immune function improves and their healthcare provider approves vaccination.
C. Taking acetaminophen for mild discomfort. Acetaminophen is an over-the-counter pain reliever and fever reducer that does not interfere with the efficacy or safety of the varicella vaccine. There is no evidence that mild analgesic use before or after vaccination affects immune response, so it is not a reason to withhold the immunization.
D. An allergy to eggs. Unlike some influenza and yellow fever vaccines, the varicella vaccine is not produced using egg-based components. An egg allergy is not a contraindication to receiving the varicella vaccine, as it does not contain egg proteins.
Correct Answer is C
Explanation
A. Tinnitus. Nitrofurantoin is not commonly associated with ototoxicity or tinnitus. Medications such as aminoglycosides and loop diuretics are more likely to cause this adverse effect. While nitrofurantoin can have some neurological side effects, tinnitus is not a primary concern.
B. Abdominal cramping. Gastrointestinal side effects such as nausea and vomiting can occur with nitrofurantoin, especially if taken on an empty stomach. However, abdominal cramping is usually mild and not a serious adverse effect requiring discontinuation of the medication. Taking the drug with food can help reduce gastrointestinal discomfort.
C. Stevens-Johnson syndrome. Stevens-Johnson syndrome (SJS) is a rare but serious hypersensitivity reaction that can occur with nitrofurantoin use. It presents with flu-like symptoms, followed by a painful rash, blistering, and skin peeling. Immediate discontinuation and medical intervention are required if symptoms develop, as SJS can be life-threatening.
D. Insomnia. Nitrofurantoin does not commonly cause insomnia. Some medications, such as corticosteroids and stimulants, are more likely to interfere with sleep. Nitrofurantoin’s side effects primarily affect the gastrointestinal, pulmonary, and dermatologic systems rather than sleep patterns.
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