Definition/Introduction

Clark’s rule equation is defined as the weight of the patient in pounds divided by the average standard weight of one hundred fifty pounds multiplied by the adult dose of a drug equals the pediatric medication dose, as is demonstrated below: (Weight* divided by 150 lbs.)

Contents

## Why are calculations important in pharmacy?

Ensuring appropriate dosing in an important component of pharmacy practice. To ensure safe, effective treatment for patients, a weight-based dosing method is often used for populations such as pediatric or elderly patients, and it is in the prescribing information for many medications.

## How do you determine concentration?

The standard formula is C = m/V, where C is the concentration, m is the mass of the solute dissolved, and V is the total volume of the solution. If you have a small concentration, find the answer in parts per million (ppm) to make it easier to follow.

## How do you calculate drugs?

Calculations in mcg/minute

Determine in which units your drug is measured (units/hour, mg/hour, or mcg/kg/minute). Know the patient’s weight in kg if your calculation is weight based. Use the universal formula below and then divide your final answer by the patient’s weight in kg to arrive at mcg/kg/minute.

## Similarly, you may ask, what is Young’s formula?

Young’s Rule

Youngs Rule uses age. (which makes it easier to remember, the word young refers to age) Here is the formula: Adult Dose X (Age ÷ (Age+12)) = Child’s Dose.

## What is the formula for Young’s rule?

The earlier Young’s rule for calculating the correct dose of medicine for a child is similar: it states that the child dosage is equal to the adult dosage multiplied by the child’s age in years, divided by the sum of 12 plus the child’s age.

## What is pharmaceutics Posology?

Noun. posology (usually uncountable, plural posologies) (countable, uncountable, pharmacy) The study of the dosages of drugs, especially the determination of appropriate dosages. [

## How do you calculate body surface area?

Body Surface Area (BSA)

1. Calculate weight in kilograms: 210 pounds ÷ 2.2 = 95.45 kg.
2. Calculate height in centimeters: 6 feet, 3 inches = 75 inches x 2.54 cm/inch = 190.5 cm.
3. Multiply height by weight and divide by 3600. (190.5 cm x 95.45 kg) ÷ 3600 = 5.
4. Take the square root of 5 = 2.24 m2

## What is Clark’s rule formula?

Clark’s rule equation is defined as the weight of the patient in pounds divided by the average standard weight of one hundred fifty pounds multiplied by the adult dose of a drug equals the pediatric medication dose, as is demonstrated below: (Weight* divided by 150 lbs.) x Adult Dose** = Pediatric Dosage.

## What is posology in pharmacy?

The word posology is derived from Greek word ‘posos’ means how much and ‘logos’ means science. Posology is the branch of medical science that deals with dose or quantity of drugs which can be administered to the patient to get desired pharmacological action. Example – The adult dose of a drug is 5mg/kg body weight.

## What are the 10 rights of drug administration?

The 10 Rights of Drug Administration

• Right Drug. The first right of drug administration is to check and verify if it’s the right name and form.
• Right Dose.
• Right Route.
• Right Time and Frequency.
• Right Documentation.
• Right History and Assessment.
• Drug approach and Right to Refuse.

## What does mg/kg mean?

Noun. (plural mg/kg) A milligram of medication per kilogram of the body weight of the person taking the medication.

## How do you figure out drops per minute?

The drops per minute would be calculated as total volume, divided by time (in minutes), multiplied by the drop factor of 60 gtts/min, which also equals 41.6, rounded to 42 drops per minute.

## Why is chemotherapy based on body surface area?

Dosing based on body surface area (BSA) is generally used in an effort to normalize drug concentrations. This is because it is well recognized that measures of many physiologic parameters that are responsible for drug disposition, including renal function and energy expenditure, can be normalized by use of BSA.

## Besides, when using Clark’s rule for medication calculation the formula is based on?

Clark’s Rule is a medical term referring to a procedure used to calculate the amount of medicine to give to a child aged 2-17. The procedure is to take the child’s weight in pounds, divide by 150lbs, and multiply the fractional result by the adult dose to find the equivalent child dosage.

Similarly, how do you calculate pediatric doses? Pediatric Dosage Calculations [Internet]. Example 1.

Step 1. Convert pounds to kg: 22 lb × 1 kg/2.2 lb = 10 kg
Step 3. Divide the dose by the frequency: 400 mg/day ÷ 2 (BID) = 200 mg/dose BID
Step 4. Convert the mg dose to mL: 200 mg/dose ÷ 400 mg/5 mL = 2.5 mL BID

## What is the drop factor for a burette?

There are a number of different drip factors available in clinical practice, however the commonest are: 10 drops per ml (blood set). 15 drops per ml (regular set). 60 drops per ml (burette, microdrop).

## What does Posology mean in medical terms?

Medical Definition of posology

: a branch of medical science concerned with dosage.

## What is the formula for medication calculations?

A basic formula, solving for x, guides us in the setting up of an equation: D/H x Q = x, or Desired dose (amount) = ordered Dose amount/amount on Hand x Quantity.

## What is Dillings formula?

Dilling’s rule. An age-based formula for calculating the paediatric dose of a drug: (child’s age in years/20) x adult dose.

## How do you calculate pediatric fluid maintenance?

Maintenance Fluid Calculation for Children

1. For infants 3.5 to 10 kg the daily fluid requirement is 100 mL/kg.
2. For children 11-20 kg the daily fluid requirement is 1000 mL + 50 mL/kg for every kg over 10.
3. For children > 20 kg the daily fluid requirement is 1500 mL + 20 mL/kg for every kg over 20, up to a maximum of 2400 mL daily.