RH Herbal Preparations & Dosage Forms

Question 1

What does the ratio in a 1:5 tincture represent?

Accepted Answer

1 gram of dried herb extracted in 5 mL of menstruum

Answer

5 grams of herb extracted in 1 mL of menstruum

Answer

1 mL of tincture diluted in 5 mL of water

Answer

5 drops of tincture per 1 mL of alcohol

Question 2

Cold infusions are most appropriate for extracting which type of plant constituents?

Accepted Answer

Mucilaginous polysaccharides and delicate aromatic compounds

Answer

Tannins and bitter resins

Answer

Alkaloids and cardiac glycosides

Answer

Fixed oils and fat-soluble vitamins

Question 3

Which alcohol concentration in a hydroethanolic menstruum is most effective for extracting resins and volatile oils?

Accepted Answer

90–95%

Answer

25–30%

Answer

40–50%

Answer

60–70%

Question 4

A decoction differs from a standard infusion primarily in that it:

Accepted Answer

Involves simmering hard plant materials for 15–45 minutes

Answer

Uses cold water to protect water-soluble vitamins

Answer

Extracts only volatile aromatic compounds

Answer

Is prepared exclusively from aerial parts of the plant

Question 5

Glycerites are preferred over alcohol-based tinctures for which patient population?

Accepted Answer

Children and individuals avoiding alcohol consumption

Answer

Elderly patients requiring faster systemic absorption

Answer

Athletes seeking rapid blood-level uptake

Answer

Patients with impaired hepatic metabolism

Question 6

Compared to a 1:5 tincture, the appropriate dose of a 1:1 fluid extract of the same herb would be:

Accepted Answer

One-fifth of the 1:5 tincture dose

Answer

The same dose as the 1:5 tincture

Answer

Five times greater than the 1:5 tincture dose

Answer

Twice the dose of the 1:5 tincture

Question 7

Which component of a hydroethanolic tincture menstruum serves primarily as a preservative against microbial growth?

Accepted Answer

Ethanol (alcohol)

Answer

Distilled water

Answer

Vegetable glycerin

Answer

Citric acid