The phrase "administered at a rate" is correct and usable in written English.
It can be used in contexts where you are discussing the frequency or speed at which something is given or applied, such as medication or treatment.
Example: "The medication was administered at a rate of 10 milligrams per hour to ensure optimal effectiveness."
Alternatives: "given at a rate" or "delivered at a rate".
He was sentenced to 10 years in jail, a heavy fine and 600 lashes – raised on appeal to 1,000 – to be administered at a rate of 50 a week.
His calls for more political and religious freedom left him with a sentence of 10 years in jail, and 950 more lashes to be administered at a rate of 50 a week.
The first fluid bolus of 100 ml was administered at a rate of 100 ml in 1 min (verified using a stopwatch) using a 50-ml syringe.
For postoperative analgesia, 0.2% ropivacaine combined with fentanyl (3 μg/ml) was administered at a rate of 4 ml/h from an epidural catheter.
Through the carotid artery, fluid and anesthesia were administered at a rate of 40 ml/kg/h for 30 min after the initiation of ventilation.
Radioactivity was contained within a volume of approximately 5 mL and was followed by a saline flush to give a total injected volume of 40 mL, administered at a rate of 2 mL/s using an infusion pump (Medrad Inc., Indianola, MS, USA).
The pump flow was maintained at 50 ml/kg/min and 100% oxygen was administered at a flow rate equal to the blood flow rate.
However, the wide-spread presence of resistant strains results in a higher overall attack rate than would have been the case if treatment were administered at a lower rate.
The solution thus contains 1 g/100 ml = 1percentt (weight/volume) and should be administered at a dosage rate of 1 ml/10 kg body weight, as 1 ml contains 10 mg of the drug and the dosage rate of the solid drug is 1 mg/kg.
A drug is to be administered at a dosage rate of 1 mg/kg.
Subsequently, a saline flush of 25 30 ml was administered at a flow rate of 3.0 ml/s.
