Homework Answers
According to the given formula there are five components required in equal doses to compound the perianal ointment.
I. One pound is = 454 grams approximately
according to the given formula 10 grams of Desitin ointment is used to compound 50gm of perianal ointment
which means 0.2 grams Desitin ointment is present in 1 gram perianal ointment
Amount of Desitin ointment required to make 1 pound perianal ointment is = amount of Desitin ointment in 1 gm perianal ointment * number of grams of perianal ointment required
which is 0.2 * 454 = 90.8 grams approximately
90.8 grams of Desitin ointment is required to compound 1 pound perianal ointment approximately.
II. Initial percentage concentration of triamcinolone ointment is 0.1%
which means 0.1 grams triamcinolone drug is present in 100 gram of this triamcinolone ointment
From the given formula, this ointment forms 1/5th of perianal ointment.
which means 100 gm triamcinolone ointment is present in 500 grams of perianal ointment.
which means 0.1 grams of triamcinolone drug is present in 500 grams of perianal ointment
0.1 out of 500 is 0.02 %.
Percentage concentration of triamcinolone drug in perianal ointment is 0.02 %.
III. Percentage concentration of lidocaine cream is 4%
which means 4 grams lidocaine is present in 100 gm lidocaine cream.
From the formula. Lidocaine cream forms 1/5th of perianal ointment.
which means 100 grams of cream is present in 500 grams of perianal ointment.
which means 4 grams of lidocaine is present in 500 grams of perianal ointment.
which means 0.008 grams ( 8 milligrams) of lidocaine is present in 1 gram of perianal ointment.
8 milligrams of lidocaine is present in 1 gram of perianal ointment.
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You receive a prescription to compound 1 pound of Perianal Ointment and find the following formula...
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