(Toney-Butler, 2021)
In the universal formula (or “desired over have method”), the desired amount (D) is the dose prescribed.
The amount on hand (H) or the amount you “have” is the available dose or concentration.
The quantity (Q) is the form and amount in which the drug is supplied (i.e. tablet, capsule, liquid). Click here for more information
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Body mass index (BMI) is a measure of body fat based on height and weight that applies to adult men and women. Click here for more details
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Body surface area is used to help calculate the most accurate medication dosage for a patient. For example, some medications ordered for a pediatric patient may be based on body surface area (BSA) and strong medications, such as chemo agents (anticancer medications).
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This Pediatric Drugs Dose Calculator is designed to provide you pediatric dose calculation based on age. It covers;
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Young’s Rule (for 1 year – 12 year)
Clark’s rule is an equation used to calculate pediatric medication dosage based on the known weight of a patient and a known adult dose of medication to be used. Click here for more information.
The Nomogram method or Catzel Rule is utilized to determine the correct pediatric medication dosage based specifically on the patient’s size. The patient’s size is identified as body surface area (BSA) in meters squared (M2).
Holliday segar method is a widely acceptable method of calculating maintenance fluid, especially in children. It helps to estimate the fluid requirement in 24 hours. The method is based on the weight of patient in kilogram. This formula relates water loss to the caloric expenditure. That is, for every 100 kilocalories burned, the patient utilizes 100ml.