Answer:
The correct dose = 1454.54 mg
and The jnfusion rate = 41.67 gitt/hr
Explanation: the correct dose will be 50mg/kg × kg/2.2 × 64lb
= 1454.54 mg
infusion rate will be
10 gtts/ml × 50mg/6 × 30/60
Infusion rate = 15000/360
= 41.67 gitt/hr
The correct dose and infusion rate of sasha's ampicillin order are;
Correct dose = 363 mg in 100mls
Infusion rate = 33 gtts/min
Sasha ordered Ampicillin of 50mg/kg/day x 48 hours.
Now this is to be given every 6 hours in 100mls of N/S run over 30 minutes.
Sasha weighs 64 lb and her order is in mg/kg and so we need to convert her weight to kg.
64 lbs to kg gives; 64/2.205 = 29.025 Kg
Now, from the order;
1 kg of weight represents 50 mg of the ampicillin
Thus, by proportion, 29.025 kg of weight will represent;
29.025 × 50/1 = 1451.25 mg per day
Since there are 24 hours in a day and the dosage is every 6 hours, the each dosage will be;
1451.25/(24 ÷ 6) ≈ 363 mg
Thus, the correct dose = 363 mg in 100mls
Formula for infusion rate is;
Infusion rate = (total volume/(time in minutes)) * drop factor
total volume is 100 mL
time = 30 minutes
drop factor = 10 gtts/mL
Thus
Infusion rate = (100/30) * 10
Infusion rate ≈ 33 gtts/min
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