Parenteral Nutrition
BMI may be easily calculated using the equation provided above or standardized tables. When calculating BMI two intersystem conversions are important: 1 kg = 2.2 lb and 1 m =…
Isotonicity, pH, and Buffers
Thus 14.3 mL of an isotonic solution of atropine sulfate contain 1 g of atropine sulfate while 14.3 mL of an isotonic solution of sodium chloride contain 0.13 g of…
Injectable Medications and Intravenous Fluids—Part I
Let us go through a couple of problems as a review. The chemical equation for the dissociation of calcium nitrate (Ca (NO3)2) is: Thus, one mol of calcium nitrate yields…
Percentage Strength
“Preparation” is frequently a solution but may be an ointment, a suppository, a powder mixture, and so on. 2. If the solute and the preparation are expressed in the same…
Dilution and Concentration
1. An important equation for us in this chapter is Calculate the amount of drug present in 300 mL of a 4.0% w/v solution of that drug. Solution. 0.040 g/mL…
Prescription and Medication Orders
Amoxicillin 250 mg/5 mL susp., 150 mlt.o. M. Drew, MD / G. Thompson, Pharm.D TABLE 3.1 Abbreviations for prescribes Abbreviation Meaning ARNP Advanced Registered Nurse Practitioner CNM Certified Nurse Midwife…
Units, Weighing, and Measuring
Review these relationships. When you are familiar with them, fill in the blanks. Solutions. A. 1 mg = 0.001 g (10−3g) = 0.000001 kg (10−6 kg) = 1000 μg (103…
General Principles of Calculations
2. One advantage of performing a calculation involving units is that they may be multiplied and divided in much the same way as numbers or algebraic symbols. If the same…
Ratio Strength and Stock Solutions
You assign the units to the parts depending on whether you are dealing with w/w, w/v, or v/v preparations. 2. The very same default rules based on weighing of solids…
