# Drug prescription and drug orders Objectives 1 know

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Drug prescription and drug orders

Objectives • 1 - know the meaning of drug order or prescription • 2 - to understand the main information's in the order • 3 - learn how to read the drug order. • 4 - revise the main abbreviations and drug calculations • 5 - solve some problems for all what we mention before

Drug order or prescription • Drug Prescription or order : A physician's order for the preparation and administration of a drug or device for a patient. • A prescription has several parts. They include the superscription or heading with the symbol "R" or "Rx", which stands for the word recipe (meaning, in Latin, to take); the inscription, which contains the names and quantities of the ingredients

What should be written in the drug order • a medication order must include : • 1 - a physicians signature. 2 - Patient full name. • 3 - drug name. 4 - dosage form and dose amount. • 5 - administration route • 5 - time schedule including frequency and the duration • 6 - date and time of the order.

What should be written in the drug order • Drug name can be trade generic name. • dosage form and dose amount. (Carful about the calculation for each dose the patient should received. • Administration route (revise the abbreviations for the drug rout like IV , IM , SC, PO, ……. • Time schedule including frequency and the duration

What should be written in the drug order • Frequency : how many times a day the patient will receive the drug. Example if the order has q 6 h this mean that the patient will receive the drug every six hours that mean 24 /6 = 4 time a day. • q 8 h mean every 8 hours 3 times a day • q 12 h mean every 12 hour 2 times aday

What should be written in the drug order •

What should be written in the drug order •

What should be written in the drug order •

Examples

• • • Drug name : Bactrim DS Form of the drug : Tablet Dose of the drug the patient should have : 1 tablet each dose The frequency of the drug : bid mean twice a day The duration of the drug 10 days The number of tablets the patient should receive for all the duration =20 tablets • Notice that there is the patient name and the physician name is mentioned too

Examples • The doctor order 3 ml of Paracetamol Po q 8 h prn for 5/7 • • • Find The drug name : Paracetamol the drug dose 3 ml The drug form : liquid Rout : orally by mouth The frequency = q 8 h mean every 8 hour that mean 3 times a day when need it • The duration 5 days

Examples • The doctor order 1 ml of Metoclopramide IM q 12 h for 2/52 • • Find The drug name : Metoclopramide the drug dose 1 ml The drug form : Injection Rout : IM The frequency = q 12 h mean every 12 hour that mean 2 times a day The duration 2 weeks

Examples • The doctor order 4 ml of Augmentin q 6 h orally for 4 days (4/7) • Notice that every bottle of the drug have 40 ml and it dose is 120 mg /5 ml ) • • Find The drug name : Augmentin the drug dose 4 ml The drug form : liquid Rout : orally by mouth The frequency = q 6 h mean every 6 hour that mean 4 times a day The duration 4 days

Examples • How many mg of the drug in 4 ml ? use ratio method 120 mg 5 ml x 4 ml Then X . 5 = 120 × 4 X = 480 /5 Then X= 96 mg • How many bottle the patient will receive ? • the patient will have 4 ml 4 time a day then every day he will receive 16 ml a day this 16 he will have it for 4 days then the total amount thr patient need = 16 × 4 = 64 ml each bottle has 40 ml then the patient should receive 2 bottels

• Revision for calculations and orders

• Revision for calculations and orders

• Revision for calculations and orders

Exercise • • • An order was Actifed syrup 2. 5 ml Po , q 12 h for 4/7 1 - find Drug name Drug dose Drug rout frequency Duration of the drug if 1 bottle contain 30 ml strength 7 mg/5 ml 1 - Find how many mg the patient will receive every dose ? 2 - How many bottles he will need for 4 days

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