Question

Одна таблетка лекарства весит 20мг и содержит 5% активного вещ- ва. ребёнку в возрасте до 6 месяцев врач прописывает1,4 мг активного вещ- ва на каждый кг веса в сутки. сколько таблеток этого лекарства следует дать ребёнку в возрасте 4 месяцев и весом 5 кг в течении суток?

Answer 1

Одна таблетка содержит 5% (0,05) активного вещества. Найдем, сколько это в миллиграммах.
20*0,05=1 мг;
2)      На 1 кг веса требуется 1,4 мг активного вещества  в сутки, а на 5 кг – в 5 раз больше.
14*5=7 мг
Так как одна таблетка содержит 1 мг активного вещества, а ребенку нужно 7 мг, то в сутки ему нужно дать 7 таблеток.

 Ответ: 7

Answer 2

Calculation of the Required Dosage

To calculate the number of tablets of the medication that should be given to a 4-month-old child weighing 5 kg within a 24-hour period, we need to follow the dosage instructions provided by the doctor.

According to the information given, each tablet of the medication weighs 20 mg and contains 5% of the active substance The doctor has prescribed a dosage of 1.4 mg of the active substance per kilogram of body weight per day for children under 6 months of age.

To calculate the total dosage required for the child, we can use the following formula:

Total dosage = (Dosage per kg) x (Body weight) x (Percentage of active substance)

Substituting the given values into the formula:

Total dosage = 1.4 mg/kg x 5 kg x 0.05

Calculating the total dosage:

Total dosage = 0.35 mg

Calculation of the Number of Tablets

Since each tablet contains 5% of the active substance and the total dosage required is 0.35 mg, we can calculate the number of tablets needed by dividing the total dosage by the amount of active substance in each tablet.

Number of tablets = Total dosage / (Dosage per tablet)

Substituting the given values into the formula:

Number of tablets = 0.35 mg / (20 mg x 0.05)

Calculating the number of tablets:

Number of tablets = 0.35 mg / 1 mg = 0.35 tablets

Since we cannot give a fraction of a tablet, we round up to the nearest whole number.

Therefore, the child should be given 1 tablet of this medication within a 24-hour period.

Please note that it is important to consult with a healthcare professional or follow the specific instructions provided by the doctor for accurate dosing information.