How should topical adrenaline be prepared for use?

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The correct answer involves drawing up 0.9 ml of saline and 1 ml of adrenaline into a 10 ml syringe. This preparation method is ideal because it creates a solution that is well within the safe concentration range for topical application. Using saline ensures that the adrenaline is properly dissolved for effective application, as saline is an isotonic solution that provides optimal conditions for use on mucous membranes and in other topical situations.

This answer ensures the adrenaline is diluted appropriately without introducing other substances that may interfere with its efficacy or cause irritation. It is important to use the correct ratios and diluents to maintain the medication's effectiveness and to minimize potential side effects or complications during administration.

The other options do not provide the proper ratios or solutions for an effective topical application of adrenaline. For instance, mixing 1 ml of adrenaline with large volumes of water might lead to an overly diluted solution, while using combinations that are not optimal can compromise efficacy or safety.

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