BIOPHARMACEUTICS
Perspiration Expired air Milk Other body fluids Drugs that are excreted via expired air may change the odor of the breath. Drugs excreted through body fluids can sometimes be identified,…
TOTAL PARENTERAL NUTRITION
Instead of using the Harris-Benedict equation, the following weight based requirements can be used: Practice Problems 1. What are the caloric requirements of a 37-year-old male patient who is 6’2”,…
pH; BUFFERS; LOGARITHMS
H+ + OH– Solutions with a pH lower than 7 are acidic; those with a pH more than 7 are basic. A solution of a strong acid, such as hydrochloric…
ACCURATE WEIGHING FOR PRESCRIPTIONS
Yes, a 50% error due to measurement. The next question is how much should we weigh such that our percent of error falls within the acceptable parameters in health care…
PARENTERAL ADMINISTRATION
2. An IV solution must be made in the pharmacy and delivered to the floor. It consists of 20 mEq of potassium chloride in a liter of dextrose 5% in…
CONCENTRATION AND DILUTION
Beginning with % w/v, which is the most common concentration form, the active ingredient is usually a solid that is expressed in grams. In % v/v (usually seen with alcoholic…
MILLIEQUIVALENT CALCULATIONS
[Note: This equation is the shortcut of the following: Then, this last equation is converted to milliequivalents (mEq) by dividing both sides by 1000, which yields the equation above. As…
BASIC MATHEMATICS REVIEW
Although capital letters are commonly used in this system, lower case letters are also seen to depict Roman numerals. Practice Exercises Convert the following Roman numerals to their Arabic equivalent…
OFTEN USED PHARMACY AND MEDICAL ABBREVIATIONS
Practice Exercises Interpret the following: 1. Sig: ii cap q4h 2. i tab qid c food 3. i tsp tid 4. 1 mL SC q24h 5. 1-2 cap q4-6h…
DOSAGE CALCULATIONS
Dose = 1.75 mg/kg × 106.4 kg × 4 hours = 744.8 mg 5. 1250 mg/m2 po bid × 2 weeks, 1 week off then repeat for 3 cycles. BSA…
