Question

recommended dose of antibiotic is 100 - 200 mg/kg/24h divided q12h iv per syringe. an infant weighs 2900 g. childs weight in kg is: □ kg (if decimal, round to the tenth place.) number what is the low recommended dose for this child per day? □ mg/day (if decimal, round to the tenth place.) what is the high recommended dose for this child per day? □ mg/day (if decimal, round to the tenth place.) what is the low recommended single dose for this child? □ mg (if decimal, round to the tenth place.) what is the high recommended single dose for this child? □ mg (if decimal, round to the tenth place.)

Explanation:

Step1: Convert weight from grams to kilograms

Since \(1\ kg = 1000\ g\), then \(weight\ (kg)=\frac{2900}{1000}=2.9\ kg\)

Step2: Calculate low - dose per day

The low - dose rate is \(100\ mg/kg/24h\). Using the formula \(dose = rate\times weight\), we have \(dose = 100\times2.9=290.0\ mg/day\)

Step3: Calculate high - dose per day

The high - dose rate is \(200\ mg/kg/24h\). Using the formula \(dose = rate\times weight\), we have \(dose = 200\times2.9 = 580.0\ mg/day\)

Step4: Calculate low - single dose

Since the dose is divided \(q12h\) (every 12 hours), for the low - dose per day (\(290\ mg/day\)), the single - dose \(=\frac{290}{2}=145.0\ mg\)

Step5: Calculate high - single dose

For the high - dose per day (\(580\ mg/day\)), the single - dose \(=\frac{580}{2}=290.0\ mg\)

Answer:

Childs weight in kg: \(2.9\) kg
Low recommended dose per day: \(290.0\) mg/day
High recommended dose per day: \(580.0\) mg/day
Low recommended single dose: \(145.0\) mg
High recommended single dose: \(290.0\) mg