What is the air velocity of a laminar flow hood?

Weight/weight (w/w%)—measured in grams of the ingredient/100 grams of the total product: 412.5 mg = 0.4125 grams (There are 1,000 mg in one gram—just move decimal 3 places to the left.) 0.4125 grams/33 grams = 0.0125 = 1.25% (To get a %, multiply by 100—or move the decimal 2 places to the right.)

An electronic infusion device provides a precise flow rate of an IV solution. IVP is an acronym for IV piggy bag, and a roller clamp provides a variable flow rate.

500 ml/3.5 hours x 1 hour/60 minutes = 2.38 ml/min Note: Remember that the units in the answer choices are per minute and not per hour. This change is made during the calculations.

The packaging date is not required on the pack- age label. The following information is required on the package label: generic name of the drug, strength, dosage form, manufacturer’s name and lot number, and expiration date after repackaging.

Geometric dilution is a technique used in mixing two ingredients of unequal quantities, in which one begins with the smallest quantity and adds an equal quantity of the ingredient having the larger amount; the process continues until all of the ingredients are used. Blending is an act of combining two substances together. Levigation is trituration of a powder drug with a solvent, in which the drug is insoluble with the solvent. Spatulation is mixing powders using a spatula in a mortar, an ointment slab, or a plastic bag; it is a process used when ingredients may liquefy on mixing; there is no reduction in particle size.

White petrolatum is classified as an oleaginous ointment base.

The lumen is the opening of a needle. The bevel is the angled tip of the needle where the lumen is found. The hilt of the needle attaches to the hub of the barrel of the syringe. The shaft is the length of the needle.