Respuesta :
This question is solved by proportions.
Step 1:
A nurse is preparing to administer cefaclor 40 mg/kg/day.
This means that the first step is finding the baby's weight in kg.
The child weighs 48lb. Each lb has 0,453592kg.
So the child weighs 48*0.453592 = 21.7724kg.
Step 2:
Here, we find the daily dose.
For each kg, the baby is administered 40 mg.
Since the baby weighs 21.7724 kg, the daily dose is of 40*21.7724 = 870.896 mg.
Step 3:
Here, we find how many mL in a day.
For 375 mg, 5 mL are administered. How many mL for 870.896 mg?
375 mg - 5 mL
870.896 mg - x mL
Applying cross multiplication:
[tex]375x = 5*870.896[/tex]
[tex]x = \frac{5*870.896}{375}[/tex]
[tex]x = 11.6[/tex]
Step 4:
Here, we find how many mL per dose.
Equal doses every 8 hours, so 24/8 = 3 doses per day.
11.6/3 = 3.9
Thus, the nurse should administer 3.9 mL per dose.
For more on proportional variables, you can check https://brainly.com/question/23536327.
Answer:
x = 3.9 ml quantity of ml / dose
Step-by-step explanation:
The child weighs 48 lbs.
Then the weigh in kgs is 48 * 0.454 = 21.792 kgs (since 1000 lbs = 454 kgs)
If the nurse has to prepare doses according to 40 mg/kg/day then for a child of 21.792 kgs it is needed 21.792*40 mg or 871.68 mg/day, and the fact that he or (she) need to take three doses then each dose will be of
871.68/3 = 290.56 mg
So far we know that each dose should contain 290.56 mg, now we have the cefactor in a suspension wich density is 375 mg/5 ml or 75 mg/ml
Then by rule of three
if 75 mg ⇒ 1 ml
290.56 mg ⇒ x (ml)
x = 290.56/75 ( mg*ml)/ mg
x = 3.87 ml round to the nearest tenth
x = 3.9 ml
