A nurse is administering 30 mg/kg/day of amoxicillin every six hours to a 48.6 lb client. The concentration available is 0.2 g/5 mL. How many mL will the nurse administer to the client per dose? Round to the nearest tenths place. Record numerical answer only.
The Correct Answer is ["4.1"]
Convert the client's weight from pounds (lb) to kilograms (kg).
Weight in kg = 48.6 lb / 2.2 lb/kg
= 22.09 kg.
Calculate the total daily desired dose in milligrams (mg).
Total daily desired dose (mg) = Desired dose (mg/kg/day) × Weight (kg)
= 30 mg/kg/day × 22.09 kg
= 662.7 mg/day.
Determine the number of doses per day.
Doses are administered every six hours, so Number of doses per day = 24 hours / 6 hours/dose
= 4 doses/day.
Calculate the dose per administration in milligrams (mg).
Dose per administration (mg) = Total daily desired dose (mg) / Number of doses per day
= 662.7 mg / 4 doses
= 165.675 mg.
Convert the available concentration from grams (g) to milligrams (mg).
Available concentration = 0.2 g/5 mL
1 g = 1000 mg
Available concentration in mg/mL = (0.2 g × 1000 mg/g) / 5 mL
= 200 mg / 5 mL
= 40 mg/mL.
Calculate the volume in milliliters (mL) to administer per dose.
Volume (mL) = Desired dose per administration (mg) / Available concentration (mg/mL)
= 165.675 mg / 40 mg/mL
= 4.141875 mL.
Round the answer to the nearest tenths place.
= 4.1mL
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["3.8"]
Explanation
Calculate the total daily desired dose in milligrams (mg).
Total daily desired dose (mg) = Desired dose (mg/kg/day) × Weight (kg)
= 0.2 mg/kg/day × 76.5 kg
= 15.3 mg/day.
Determine the number of doses per day.
Doses are ordered every 6 hours, so Number of doses per day = 24 hr / 6 hr
= 4 doses/day.
Calculate the dose per administration in milligrams (mg).
Dose per administration (mg) = Total daily desired dose (mg) / Number of doses per day
= 15.3 mg / 4 doses
= 3.825 mg.
Available concentration of the medication = 1 mg/mL.
Calculate the volume in milliliters (mL) to administer per dose.
Volume (mL) = Desired dose per administration (mg) / Available concentration (mg/mL)
= 3.825 mg / 1 mg/mL
= 3.825 mL.
Round the answer to the nearest tenths place.
= 3.8 mL.
Correct Answer is C
Explanation
A. Emphasize the protein, vitamin, and iron needs of pregnancy nutrition: While emphasizing proper nutrition during pregnancy is important, this response does not directly address the client's current behavior or potential underlying health concerns related to pica.
B. Kindly but firmly scold the client to discourage the habit: Scolding the client is not an appropriate or effective approach. A non-judgmental, supportive response is needed to encourage open communication about this habit and to explore potential underlying causes.
C. Suggest they have a hemoglobin assessment done because of the association between pica and iron-deficiency anemia: Pica, the craving for nonfood substances like detergent, chalk, and soap, is often associated with iron-deficiency anemia. It would be appropriate to suggest a hemoglobin assessment to check for anemia.
D. Arrange for a separate appointment to prepare instructions about the hazards of ingesting nonfood substances: While it's important to discuss the risks of ingesting nonfood substances, it would be more helpful to address the potential underlying cause (iron deficiency) first and then discuss the hazards of pica in a supportive way.
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