WorksheetsUNIT 3 — ROUTES OF DRUG ADMINISTRATION
Total questions: 10
Worksheet time: 5mins
Case 3 – Ear Pain and Discharge: Which route and formulation?
Otic route — Ciprofloxacin or steroid ear drops
Oral route — Amoxicillin
Topical route — Hydrocortisone cream
Intravenous route — Vancomycin
Case 4 – Long-term Birth Control: Which route and formulation?
Etonogestrel subdermal implant (Implanon®)
Levonorgestrel IUD (Mirena®)
Oral contraceptive pills (e.g., Yasmin®)
Transdermal patch (e.g., Ortho Evra®)
MCQ 5: Why should ear drops be warmed before administration?
A. To improve absorption.
B. To avoid dizziness caused by cold solution.
C. To make the drug more potent.
D. To sterilize the solution.
MCQ 3: A patient using hydrocortisone cream applies too much over a large area daily. What could happen?
A. Nothing, as creams never absorb.
B. Possible systemic absorption causing hormonal side effects.
C. Immediate allergic reaction.
D. Reduced local effect.
Case 2 – Eye Redness & Discharge: What route and formulation?
Ophthalmic route — Chloramphenicol eye drops or ointment.
Oral route — Amoxicillin capsules.
Intravenous route — Ceftriaxone injection.
Topical route — Hydrocortisone cream.
Which route and dosage form would you recommend?
Oral route — Amoxicillin tablet (for systemic antibiotic action).
Topical route — Mupirocin ointment (for local antibiotic action).
Intravenous route — Ceftriaxone injection (for severe infections).
Subcutaneous route — Insulin injection (for diabetes management).
Explain the main difference between a cream, ointment, and gel in topical formulations, and when each is preferred.
Cream: Water + oil emulsion, light and non-greasy, for moist or weeping skin (e.g., eczema).
Ointment: Water-based, thick and occlusive, for oily skin (e.g., acne).
Gel: Oil-based, fast drying, for dry/scaly skin (e.g., psoriasis).
Ointment: Oil-based, thick and occlusive, for dry/scaly skin (e.g., psoriasis).
Which topical preparation is most suitable for dry, scaly skin?
A. Gel
B. Ointment
C. Cream
D. Lotion
Which statement about implants is FALSE?
A. They provide long-term release of medication.
B. They can be inserted and removed easily at home.
C. They improve patient adherence.
D. They can cause infection at insertion site.
MCQ 2: Which of the following statements about eye drops is TRUE?
A. Apply drops directly on the eyeball surface.
B. Multiple drops increase absorption.
C. Close eyes gently and press inner corner to reduce systemic absorption.
D. Shake all eye drop bottles before use.
