Learning Objective The following are the factors that affect the selection of dose for a patient:
Crawford Terry Rourke method uses the body surface area of the child to calculate the dose: (1.73 m2 is the average body surface area of an adult.)
Clark’s formula uses the body weight of the child to determine the dose and is calculated as follows: (or) (70 kg = 150 pounds is the average weight of an adult.)
Learning Objective The following formulas are based on the age of the child:
The term posology is derived from the Greek words “posos,” meaning how much, and “logos,” meaning science. It is a branch of medical science that deals with the dose or quantity of drugs that needs to be administered to a patient to get the desired pharmacological action. Dosing of drugs in infants and children requires…
The following are the most common methods of pricing:
Learning Objective The pharmacist should effectively manage the financial aspects of his/her practice. Each pharmacy should have a method for pricing prescriptions, which is applied by every pharmacist practicing in that pharmacy. A pricing method that ensures profitable operation of the prescription department should be established. The cost applied to the prescription should cover the…
Learning Objective The primary responsibility of a pharmacist is to safely and properly dispense medication to the patients. The manner in which a pharmacist processes a prescription order is an important aspect of his/her professional responsibilities. The important steps in processing a prescription order are described as follows:
This is a necessary part of the prescription and is required to validate the prescription order. Figure 2.2 shows an example of a model prescription. Figure 2.2 A Model Prescription
The number of authorized refills should be indicated on each prescription by the prescriber. This is especially important for prescriptions containing narcotic and habit-forming drugs to prevent their misuse.