What is the best way to administer parenteral iron preparations?

1. Injection into the deltoid muscle followed by gentle massage

2. Injection into a large muscle with the use of the Z-track method

3. Injection into a large muscle with the use of the air-lock method

4. Injection into a ventrogluteal muscle followed by massage

Option 2, Injection into a large muscle with the use of the Z-track method

Explanation:

The z-track method is used for parenteral iron preparations to avoid tissues from staining and irritation over the air lock method. Z track method prevents the leakage of medicine beneath the skin. In this method, after injecting the medicine the muscle and skin is pulled first and the injection is pulled later. This forms zigzag line that prevents medicine from leaking. Generally injected at thighs and buttocks

Hence, option 2 is correct