To prevent systemic absorption of timolol (Timoptic), what administration instructions are appropriate for the nurse to include in teaching?
1. Apply pressure over the lacrimal sac for 1 minute.
2. Wait 5 minutes before administering other ophthalmic solutions.
3. Administer the eyedrop in the conjunctival sac.
4. Remove contact lenses prior to administering eyedrops.
Correct Answer: 1
Rationale 1: Applying pressure over the lacrimal sac for 1 minute will decrease systemic absorption.
Rationale 2: This will not decrease systemic absorption.
Rationale 3: This will not decrease systemic absorption.
Rationale 4: This will not decrease systemic absorption.
Global Rationale: Applying pressure over the lacrimal sac for 1 minute will decrease systemic absorption. Waiting 5 minutes between medication administration will not decrease systemic absorption. Administering the medication in the conjunctival sac will not decrease systemic absorption. Removing contact lenses prior to administering the medication will not decrease systemic absorption.
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