Metrology Flashcards
(11 cards)
Metrology and pharmacology
Metrology is important in measuring the drug dose, because the difference between a therapeutic and a toxic effect depends on the dose.
________ is the amount of medication measured (mg/ml) that is administered to the animal.
Dose
________ is the amount of medication based on unit per weight of animal
Dosage
Three system for measurement weight and volume:
- Metric (g)
- Apothecaries (ounce)
- House hold (rough estimation of drug)
- Metric system: weight - gram
Kg
g
Mg
Microgram
- Metric system: volume - L
L
dL
ml
Microlitre
- Metric system - Length:
One dimension - length (cm1)
Two dimension - area (cm2)
Three dimension - volume (cm3) -cc (cubic centimetre measure volume)
- Apothecaries system - ounce (oz) - weight
1 kg = 2.2 bound
1 bound = 450 gram
gr = grain = 65 mg هي مقياس الوزن بهاذ النظام
1 oz = 30 g
- Apothecaries system - volume
1 fl oz = 30ml
- House hold:
Rough estimation of the drug is used in non toxic material, such as preparing dilutions or where high accuracy is not essential.
- House hold:
Spoon - معلقة
1 Tbsp (large) = 15g , 15ml
1 tsp (teaspoon - small) = 4ml , 4g
1 cup/glass (small) = 100ml , 100g
1 cup/glass (large) = 240ml , 240g